Dial wheel password padlock and password retrieving structure thereof

Abstract

The utility model discloses a dial wheel password padlock and a password retrieving structure thereof. The dial wheel password padlock comprises a dial wheel and a lock beam, the shifting wheel is arranged on the lock beam in a sleeving mode, the lock beam and the shifting wheel can move in the axial direction, a locking protrusion is arranged on the lock beam, the shifting wheel is provided with a limiting block matched with the locking protrusion, and the locking protrusion can correspond to the limiting block in the circumferential direction through circumferential movement of the lock beam; the limiting block on the dial wheel is matched with the locking protrusion to abut against the dial wheel in the circumferential direction to limit rotation of the dial wheel so as to retrieve the password. The scheme is simple in structure and low in production cost, and can be implemented by directly adjusting on the basis of the existing structure.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a dial wheel password padlock and a password retrieval structure thereof. Background Art

[0002] Dial-wheel combination padlocks are widely used in daily life and industrial settings due to their ease of use and key-free operation. However, with long-term use, users often forget the combination due to memory loss or prolonged disuse, resulting in an inability to unlock the padlock, which impacts the user experience.

[0003] To solve the problem of being unable to unlock the door after forgetting the password, existing technologies often add a key unlocking mechanism to the dial wheel combination padlock, allowing emergency unlocking through key operation. However, in actual applications, when the user needs to retrieve the original password after unlocking the door with the key, existing solutions often rely on complex auxiliary structures to complete the password reset or retrieval.

[0004] These complex structures not only increase the production cost of the padlock, but also increase the difficulty of assembly, which is not conducive to large-scale production. At the same time, they lead to reduced stability during use. Therefore, how to implement a password retrieval function in a simple and low-cost manner based on the existing dial wheel combination padlock structure has become a technical problem that needs to be solved in this field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a dial wheel password padlock and a password retrieval structure thereof, which has a simple structure and low production cost and can be implemented by directly adjusting the existing structure.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A password retrieval structure of a dial wheel password padlock, comprising a dial wheel and a lock beam; the dial wheel is sleeved on the lock beam, the lock beam and the dial wheel can move axially, a locking protrusion is provided on the lock beam, and the dial wheel is provided with a limit block that cooperates with the locking protrusion, and the lock beam can make the locking protrusion correspond to the circumferential position of the limit block through circumferential movement; the limit block on the dial wheel cooperates with the locking protrusion to circumferentially abut against the dial wheel to retrieve the password.

[0007] As a further improvement of the present invention, a notch is provided on the dial wheel to cooperate with the locking protrusion, and the notch cooperates with the locking protrusion to form a password.

[0008] As a further improvement of the present invention, the position of the notch matches the position of the limiting block, and when the limiting block abuts against the locking protrusion, the position of the notch corresponds to the position of the locking protrusion.

[0009] As a further improvement of the present invention, it also includes a backup unlocking mechanism and a locking piece. The backup unlocking mechanism is used for user interaction and is also used to drive the locking piece close to or away from the end of the lock beam to lock or unlock the lock beam. When the locking piece is close to the end of the lock beam, the locking piece limits the rotation of the lock beam and the axial movement toward the locking piece; when the locking piece is away from the end of the lock beam, the circumferential rotation restriction on the lock beam is released, and the locking piece can move axially to allow the limit block to cooperate with the locking protrusion to retrieve the password.

[0010] As a further improvement of the present invention, a groove is provided on the locking piece, and when the locking piece is close to the end of the lock beam to lock the lock beam, the end of the lock beam is inserted into the groove.

[0011] As a further improvement of the present invention, the backup unlocking mechanism is a key lock cylinder or an identification drive module or a remote drive module.

[0012] A dial wheel password padlock comprises a lock body and a lock beam which is retractably mounted on the lock body, wherein the lock body is provided with a password unlocking mechanism and a key unlocking mechanism;

[0013] The password unlocking mechanism includes a password wheel, an inner wheel linked to the password wheel, and a locking protrusion provided on the lock beam, wherein the locking protrusion cooperates with the notch on the inner wheel to form a password;

[0014] The key unlocking mechanism includes a lock core and a locking member that cooperates with the lock. The lock core drives the locking member to at least partially extend or retract into the lock body through rotation. The locking member is provided with a groove for inserting a lock beam. When the lock beam is in a locked state and inserted into the groove, the groove restricts the lock beam from rotating and pressing downward.

[0015] A limit block is provided on the inner wheel. When the locking piece is driven into the lock body by the lock core and the lock beam is pressed down to the position of the locking protrusion corresponding to the limit block in the circumferential direction, the inner wheel is rotated by rotating the dial wheel until the limit block abuts against the locking protrusion to retrieve the password.

[0016] As a further improvement of the present invention, the stroke of the lock core driving the locking piece to be retracted is adapted to the axial stroke of the locking protrusion and the limit block. When the locking piece is retracted into place and the lock beam is pressed down, the lock beam is reinserted into the groove and abuts against the bottom of the groove, the position of the locking protrusion corresponds to the circumference of the limit block.

[0017] As a further improvement of the present invention, a limiting step is provided in the lock body, and a positioning block for cooperating with the limiting step is also provided on the lock beam. When the lock beam is pressed down, the limiting step cooperates with the positioning block to limit the maximum downward stroke of the lock beam, and when the positioning block abuts against the limiting step, the position of the locking protrusion corresponds to the circumference of the limiting block.

[0018] The beneficial effects of the present invention are as follows: the password retrieval structure realizes the password retrieval function by coordinating the axial and circumferential movement of the dial wheel and the lock beam, and utilizing the circumferential abutment between the locking protrusion and the limit block to limit the rotation of the dial wheel. The overall structure is simple and can be adjusted and implemented on the basis of the existing dial wheel password padlock without the need for complex auxiliary structures, thus reducing the production cost and assembly difficulty, being conducive to large-scale production, and at the same time improving the stability during use, effectively solving the problem of difficulty in retrieving the password after the user forgets it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 2 This is a side structural diagram of the present utility model;

[0021] Figure 3 for Figure 2 AA section view in;

[0022] Figure 4 for Figure 1 BB cross-section in;

[0023] Figure 5 It is a partial structural cross-sectional diagram of the utility model;

[0024] Figure 6 It is a partial structural perspective diagram of the utility model;

[0025] Figure 7 for Figure 6 Enlarged view of part A in .

[0026] Figure numbers: 1. Dial wheel; 11. Limit block; 12. Notch; 13. Combination wheel; 14. Inner wheel; 2. Lock beam; 21. Locking protrusion; 22. Positioning block; 3. Backup unlocking mechanism; 31. Lock cylinder; 4. Locking piece; 41. Groove; 5. Limit step. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0028] Reference Figure 1-7 As shown,

[0029] A password retrieval structure for a dial wheel combination padlock comprises a dial wheel 1 and a lock beam 2; the dial wheel 1 is sleeved on the lock beam 2, the lock beam 2 and the dial wheel 1 are axially movable, a locking protrusion 21 is provided on the lock beam 2, and the dial wheel 1 is provided with a limit block 11 that cooperates with the locking protrusion 21. The lock beam 2 can make the circumferential positions of the locking protrusion 21 correspond to the circumferential positions of the limit block 11 through circumferential movement; the limit block 11 on the dial wheel 1 cooperates with the locking protrusion 21 to circumferentially abut against the circumferential limit of the dial wheel 1 to retrieve the password.

[0030] The dial wheel 1 and the lock beam 2 are connected by a sleeve structure, allowing them to move relative to each other along the axial direction of the lock beam 2 (i.e., along its length). For example, the lock beam 2 can extend or retract axially relative to the dial wheel 1. Simultaneously, the lock beam 2 can rotate circumferentially about its own axis, while the dial wheel 1 sleeved on the lock beam 2 rotates relative to the lock beam 2. When the user forgets their password, they first adjust the relative position of the lock beam 2 and the dial wheel 1 by axial movement, so that the locking protrusion 21 and the limit block 11 are within the axial matching range and the locking protrusion 21 on the lock beam 2 circumferentially corresponds to the limit block 11 on the dial wheel 1. At this point, the dial wheel 1 is rotated. When the limit block 11 on the dial wheel 1 circumferentially abuts the locking protrusion 21, the dial wheel 1 cannot rotate further. This position corresponds to the password, allowing password retrieval. This structure enables password retrieval simply by cooperating with the locking protrusion 21 and the stopper 11, eliminating the need for additional complex structures. The stopper 11 can simply be added to the existing padlock structure, reducing manufacturing costs and assembly difficulty. Furthermore, the component connection is stable, improving the reliability of the padlock during use. Therefore, during implementation, only the mold for the dial wheel 1 needs to be adjusted. This is a convenient improvement, allowing adjustments to be made directly to the existing structure without the need for a new mold, effectively reducing costs and achieving a password retrieval function at a very low cost.

[0031] Preferably, the dial wheel 1 is provided with a notch 12 that cooperates with the locking protrusion 21, and the notch 12 cooperates with the locking protrusion 21 to form a password. The notch 12 is a recessed structure on the dial wheel 1, and its position corresponds to the preset password. During normal unlocking, when the dial wheel 1 rotates until the notch 12 corresponds to the locking protrusion 21 on the lock beam 2 in the circumferential position, the locking protrusion 21 can enter the notch 12. At this time, the lock beam 2 can move axially to achieve unlocking, that is, the cooperation between the notch 12 and the locking protrusion 21 constitutes the core structure of the password. When the password needs to be retrieved, the password positions of the notch 12 and the locking protrusion 21 are related. The password position corresponding to the notch 12 can be reversed by the contact position of the limit block 11 and the locking protrusion 21, further clarifying the password structure, so that the formation and retrieval of the password are linked, improving the stability of the password setting and the accuracy of the retrieval, and the notch 12 structure is easy to process without increasing excessive manufacturing costs.

[0032] As a more efficient solution, the position of the notch 12 matches that of the stop block 11. When the stop block 11 abuts the locking protrusion 21, the notch 12 corresponds to the position of the locking protrusion 21. This positional coordination makes password retrieval more straightforward, eliminating the need for backtracking. The password position corresponding to the notch 12 can be directly determined simply by the abutment of the stop block 11 and the locking protrusion 21, simplifying the retrieval process and improving the user experience. Furthermore, the stable positional coordination between the notch 12 and the stop block 11 ensures accurate password retrieval, while also ensuring a compact design that doesn't take up any extra space.

[0033] Specifically, it also includes a backup unlocking mechanism 3 and a locking piece 4. The backup unlocking mechanism 3 is used for user interaction and is also used to drive the locking piece 4 close to or away from the end of the lock beam 2 to lock or unlock the lock beam 2. When the locking piece 4 is close to the end of the lock beam 2, the locking piece 4 limits the rotation of the lock beam 2 and the axial movement toward the locking piece 4; when the locking piece 4 is away from the end of the lock beam 2, the circumferential rotation restriction on the lock beam 2 is released, and the locking piece 4 can move axially to allow the limit block 11 to cooperate with the locking protrusion 21 to retrieve the password.

[0034] In the normal locked state, the backup unlocking mechanism 3 drives the locking element 4 toward the end of the lock beam 2, where it abuts or engages with the end of the lock beam 2, restricting the lock beam 2 from circumferential rotation about its own axis and axial movement toward the locking element 4 (e.g., in the direction of the lock beam 2 being pressed downward), ensuring that the padlock is locked. When the user forgets their password and needs to retrieve it, the backup unlocking mechanism 3 interacts with the user (e.g., by operating a key, inputting a command, fingerprint recognition, Bluetooth recognition, etc.) to drive the locking element 4 away from the end of the lock beam 2. At this point, the locking element 4 releases the restrictions on the circumferential rotation and axial movement of the lock beam 2 in a specific direction. The user can first move the lock beam 2 axially (e.g., by pressing down on the lock beam 2) to adjust the axial position of the locking protrusion 21 and the limit block 11, then rotate the limit block 11 circumferentially so that the locking protrusion 21 circumferentially aligns with the limit block 11. The password can then be retrieved through the abutment between the limit block 11 and the locking protrusion 21. The setting of the backup unlocking mechanism 3 ensures that the password can be unlocked and retrieved in a backup manner when the password is forgotten. The locking member 4 ensures the locking stability of the lock beam 2 under normal conditions. The overall structure does not affect the normal locking performance of the padlock while realizing the password retrieval function, and the various components are linked through transmission connections, which is convenient to operate and highly reliable.

[0035] Preferably, the locking element 4 is provided with a groove 41. When the locking element 4 approaches the end of the locking beam 2 to lock the locking beam 2, the end of the locking beam 2 is inserted into the groove 41. In the normal locked state, the end of the locking beam 2 is inserted into the groove 41. The sidewalls of the groove 41 restrict the circumferential rotation of the locking beam 2 (the locking beam 2 cannot rotate about its axis), and the bottom of the groove 41 restricts the axial movement of the locking beam 2 toward the locking element 4 (e.g., it cannot be pressed downward). When the password needs to be retrieved, the backup unlocking mechanism 3 drives the locking element 4 away from the end of the locking beam 2, and the end of the locking beam 2 disengages from the groove 41, releasing the restriction and allowing the user to retrieve the password.

[0036] Preferably, the backup unlocking mechanism 3 is a key lock cylinder 31, an identification and actuation module, or a remote actuation module. The identification and actuation module can be fingerprint recognition or electronic password recognition, and upon successful recognition, electrically actuates the locking element 4. When a remote actuation module is used, it can be implemented using Bluetooth, a WiFi module, a mobile phone app, or other methods, and electrically actuates the locking element 4. These specific implementations are mature existing technologies and will not be elaborated on here.

[0037] The above introduction is a password recovery structure of a dial wheel 1 combination padlock. A specific dial wheel 1 combination padlock solution is as follows:

[0038] A dial wheel 1 password padlock, comprising a lock body and a lock beam 2 which is retractably mounted on the lock body, wherein the lock body is provided with a password unlocking mechanism and a key unlocking mechanism;

[0039] The password unlocking mechanism includes a password wheel 13, an inner wheel 14 linked to the password wheel 13, and a locking protrusion 21 provided on the lock beam 2. The locking protrusion 21 cooperates with the notch 12 on the inner wheel 14 to form a password;

[0040] The key unlocking mechanism includes a lock cylinder 31 and a locking member 4 that cooperates with the lock. The lock cylinder 31 rotates to drive the locking member 4 to at least partially extend or retract into the lock body. The locking member 4 is provided with a groove 41 for the lock beam 2 to be inserted. When the lock beam 2 is in the locked state and inserted into the groove 41, the groove 41 restricts the lock beam 2 from rotating and pressing downward.

[0041] A limit block 11 is provided on the inner wheel 14. When the locking member 4 is driven into the lock body through the lock core 31 and the lock beam 2 is pressed down to the position of the locking protrusion 21 corresponding to the limit block 11 in the circumferential direction, the inner wheel 14 is rotated by rotating the dial wheel 1 until the limit block 11 abuts against the locking protrusion 21 to retrieve the password.

[0042] The lock body is the main structure of the padlock. The lock beam 2 is mounted to the lock body via a telescopic mechanism (such as a spring return mechanism), allowing it to extend or retract relative to the lock body. In the combination unlocking mechanism, the combination wheel 13 and the inner wheel 14 are linked by coaxial mounting or gear meshing. That is, when the combination wheel 13 is rotated, the inner wheel 14 rotates synchronously. The notches 12 on the inner wheel 14 mate with the locking protrusions 21 on the lock beam 2. When all the notches 12 on the inner wheel 14 circumferentially align with the locking protrusions 21, the lock beam 2 can be extended and retracted to unlock the lock, thus achieving the combination unlocking function. In the key unlocking mechanism, the lock core 31 is connected to the locking element 4 via a transmission mechanism (such as an eccentric wheel, connecting rod, spiral groove, etc.). Rotating the lock core 31 drives the locking element 4 to extend or retract radially along the lock body. In the locked state, the locking element 4 extends, and the end of the lock beam 2 is inserted into the groove 41 of the lock element 4. The side walls of the groove 41 restrict the rotation of the lock beam 2, while the bottom of the groove restricts the downward movement of the lock beam 2 (retraction direction). When the password is forgotten, the lock cylinder 31 is rotated with the key, driving the locking element 4 to retract into the lock body. The end of the lock beam 2 disengages from the groove 41. At this time, the lock beam 2 can be pressed down until the locking protrusion 21 and the limit block 11 on the inner wheel 14 are circumferentially aligned. The combination wheel 13 is rotated, and the combination wheel 13 drives the inner wheel 14 to rotate. When the limit block 11 on the inner wheel 14 circumferentially abuts the locking protrusion 21, the inner wheel 14 cannot rotate. This position is the password-corresponding position, allowing password retrieval. This padlock integrates the dual functions of password unlocking and key unlocking. The key unlocking mechanism provides the operational basis for password retrieval, and the linkage between the inner wheel 14 and the combination wheel 13 ensures the accuracy of password retrieval. The compact structure and orderly layout of various mechanisms within the lock body ensure both normal unlocking function and simple and reliable password retrieval, improving the product's practicality.

[0043] In order to facilitate the cooperation between the limit block 11 and the locking protrusion 21, the following two solutions can be adopted:

[0044] 1. The retraction stroke of the locking element 4 driven by the lock core 31 is matched to the axial travel of the locking protrusion 21 and the stop block 11. When the locking element 4 is fully retracted and the lock beam 2 is pressed downward, the locking beam 2 reinserts into the groove 41 and abuts the bottom of the groove 41, and the position of the locking protrusion 21 circumferentially corresponds to the stop block 11. The retraction stroke of the locking element 4 driven by the lock core 31 (i.e., the distance the locking element 4 is retracted into the lock body) matches the corresponding axial travel of the locking protrusion 21 and the stop block 11. By designing the retraction stroke of the locking element 4, when the locking element 4 is fully retracted, the lock beam 2 is pressed downward, causing it to reinsert into the groove 41 of the locking element 4 and abut the bottom of the groove (at this point, although the locking element 4 is retracted, the groove 41 can still cooperate with the lock beam 2 to position it). This position exactly aligns the locking protrusion 21 with the stop block 11 on the inner wheel 14 in the circumferential direction. The user does not need to repeatedly adjust the downward position of the lock beam 2 during operation. He only needs to retract the locking piece 4 into place and reinsert the lock beam 2 into the groove 41 to abut the bottom of the groove, and then the locking protrusion 21 and the limit block 11 can be directly put into the circumferential matching state. This simplifies the password retrieval operation steps, improves the operational convenience, and at the same time ensures the coordination and accuracy of the actions of various components, avoiding password retrieval failure due to position deviation.

[0045] 2. A limiting step 5 is provided within the lock body, and a corresponding positioning block 22 is provided on the lock beam 2 to cooperate with the limiting step 5. When the lock beam 2 is pressed downward, the limiting step 5 and the positioning block 22 cooperate to limit the maximum downward travel of the lock beam 2. When the positioning block 22 abuts the limiting step 5, the position of the locking protrusion 21 circumferentially corresponds to the limiting block 11. A limiting step 5 (e.g., an annular step protruding radially along the inner wall of the lock body) is provided on the lock beam 2, and a corresponding positioning block 22 (e.g., a block-shaped structure protruding radially along the lock beam 2) is provided on the lock beam 2. When the user presses down on the lock beam 2, the lock beam 2 drives the positioning block 22 thereon toward the interior of the lock body. When the positioning block 22 abuts the limiting step 5 within the lock body, the lock beam 2 can no longer be pressed downward, at which point the maximum downward travel is reached. This maximum downward travel causes the locking protrusion 21 on the lock beam 2 to circumferentially correspond with the limiting block 11 on the inner wheel 14. Through the mechanical limiting structure of the limiting step 5 and the positioning block 22, the downward position of the lock beam 2 can be accurately controlled without relying on the positioning of the groove 41 of the locking piece 4, ensuring the circumferential correspondence between the locking protrusion 21 and the limiting block 11, further improving the accuracy and reliability of the password retrieval operation.

[0046] 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 password retrieval structure for a dial wheel password padlock, comprising a dial wheel and a lock beam; characterized in that: The thumbwheel is sleeved on the lock beam, and the lock beam and the thumbwheel can move axially. A locking protrusion is provided on the lock beam, and the thumbwheel is provided with a limit block that cooperates with the locking protrusion. The lock beam can make the locking protrusion correspond to the circumferential position of the limit block through circumferential movement; the limit block on the thumbwheel cooperates with the locking protrusion to circumferentially abut and limit the rotation of the thumbwheel to retrieve the password.

2. The password retrieval structure according to claim 1, characterized in that: The thumbwheel is provided with a notch matched with the locking protrusion, and the notch cooperates with the locking protrusion to form a password.

3. The password retrieval structure according to claim 2, characterized in that: The position of the notch matches the position of the limiting block. When the limiting block abuts against the locking protrusion, the position of the notch corresponds to the position of the locking protrusion.

4. The password retrieval structure according to claim 1, characterized in that: It also includes a backup unlocking mechanism and a locking piece. The backup unlocking mechanism is used for user interaction and is also used to drive the locking piece close to or away from the end of the lock beam to lock or unlock the lock beam. When the locking piece is close to the end of the lock beam, the locking piece limits the rotation of the lock beam and the axial movement toward the locking piece; when the locking piece is away from the end of the lock beam, the circumferential rotation restriction on the lock beam is released, and the locking piece can move axially to allow the limit block to cooperate with the locking protrusion to retrieve the password.

5. The password retrieval structure according to claim 4, characterized in that: The locking piece is provided with a groove. When the locking piece is close to the end of the lock beam to lock the lock beam, the end of the lock beam is inserted into the groove.

6. The password retrieval structure according to claim 4, characterized in that: The backup unlocking mechanism is a key lock cylinder, an identification drive module, or a remote drive module.

7. A dial wheel combination padlock comprising a lock body and a lock beam retractably mounted on the lock body, characterized in that: The lock body is provided with a password unlocking mechanism and a key unlocking mechanism; The password unlocking mechanism includes a password wheel, an inner wheel linked to the password wheel, and a locking protrusion provided on the lock beam, wherein the locking protrusion cooperates with the notch on the inner wheel to form a password; The key unlocking mechanism includes a lock core and a locking member that cooperates with the lock. The lock core drives the locking member to at least partially extend or retract into the lock body through rotation. The locking member is provided with a groove for inserting a lock beam. When the lock beam is in a locked state and inserted into the groove, the groove restricts the lock beam from rotating and pressing downward. A limit block is provided on the inner wheel. When the locking piece is driven into the lock body by the lock core and the lock beam is pressed down to the position of the locking protrusion corresponding to the limit block in the circumferential direction, the inner wheel is rotated by rotating the dial wheel until the limit block abuts against the locking protrusion to retrieve the password.

8. The dial wheel combination padlock according to claim 7, characterized in that: The stroke of the lock core driving the locking piece to be retracted is adapted to the axial stroke of the locking protrusion and the limit block. When the locking piece is retracted into place and the lock beam is pressed down, the lock beam is reinserted into the groove and abuts against the bottom of the groove, the position of the locking protrusion corresponds to the circumference of the limit block.

9. The dial wheel combination padlock according to claim 7, characterized in that: A limiting step is provided in the lock body, and a positioning block for cooperating with the limiting step is also provided on the lock beam. When the lock beam is pressed down, the limiting step cooperates with the positioning block to limit the maximum downward stroke of the lock beam, and when the positioning block abuts against the limiting step, the position of the locking protrusion corresponds to the circumference of the limiting block.

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