Password retrieving mechanism, coded lock and trunk lock
By integrating a flexible pressing part and a recessed part into the combination lock, users can easily retrieve their password when they forget it, solving the problem of forgetting passwords and improving the convenience and security of the lock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-03
- Publication Date
- 2026-04-07
AI Technical Summary
Users often forget their combination lock passwords, making them unrecoverable and affecting both convenience and security.
Design a password retrieval mechanism that uses the cooperation of an elastic pressing part and a recessed part to help users retrieve passwords by utilizing resistance or locking tactile feedback. The elastic pressing part is integrally molded on the back cover and protrudes from the surface, providing a clear pressing contact point and limit protection.
Users can easily retrieve their password after unlocking the lock with a key, reducing operational difficulty, improving the user experience and the practicality of the lock, and avoiding the need to damage the lock.
Smart Images
Figure CN224093149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to combination locks, specifically a combination retrieval mechanism, a combination lock, and a trunk lock. Background Technology
[0002] When using a typical combination lock, if it is not used for a period of time, the user is likely to forget the combination. For example, the trunk lock of electric vehicles and motorcycles. If the vehicle is parked for a period of time without being driven, the user is likely to forget the combination. Usually, for security reasons, an additional key is added to unlock it. However, if the combination cannot be retrieved after being forgotten, the user will have to use the combination lock again.
[0003] Therefore, a solution is needed to make it easier for users to retrieve their passwords. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a password retrieval mechanism, a combination lock, and a trunk lock, which allows users to retrieve the password after unlocking with a key.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A password retrieval mechanism includes a password wheel mechanism. The password wheel assembly of the password wheel mechanism has a recess corresponding to the position of the correct password on the password wheel assembly. Each password wheel assembly has an elastic pressing part. The user can rotate the password wheel assembly by pressing down on the elastic pressing part until the elastic pressing part enters the recess, generating resistance to the rotation of the password wheel assembly or locking the password wheel assembly.
[0007] As a further improvement of this utility model, the elastic pressing part is integrally formed on a rear cover.
[0008] As a further improvement of this utility model, at least a portion of the elastic pressing part protrudes from the surface of the back cover.
[0009] As a further improvement of this utility model, the elastic pressing part is V-shaped, the concave position is used to match the concave part on the password wheel assembly, and one end is connected to the back cover, while the other end protrudes from the surface of the back cover.
[0010] As a further improvement of this utility model, a window is provided on the back cover at the position corresponding to the elastic pressing part for the elastic pressing part to press and move. When the part of the elastic pressing part protruding from the surface of the back cover is pressed down into place, it abuts against the edge of the window to limit the elastic pressing part from continuing to press down.
[0011] A combination lock includes a housing, a back cover mounted on the housing, and a combination wheel mechanism mounted in the housing. The combination wheel assembly of the combination wheel mechanism has a recess corresponding to the correct combination position. The back cover has an elastic pressing part corresponding to the position of each combination wheel assembly. The user can rotate the combination wheel assembly by pressing down the elastic pressing part until the elastic pressing part enters the recess, generating resistance to the rotation of the combination wheel assembly or locking the combination wheel assembly.
[0012] As a further improvement of this utility model, the elastic pressing part is integrally formed on a rear cover.
[0013] As a further improvement of this utility model, at least a portion of the elastic pressing part protrudes from the surface of the back cover.
[0014] As a further improvement of this utility model, a window is provided on the back cover at the position corresponding to the elastic pressing part for the elastic pressing part to press and move. When the part of the elastic pressing part protruding from the surface of the back cover is pressed down into place, it abuts against the edge of the window to limit the elastic pressing part from continuing to press down.
[0015] A trunk lock employing a combination lock as described in any of the above.
[0016] The beneficial effects of this utility model are that after forgetting the password, the user can retrieve the password by opening the lock with a key using this mechanism, without disassembling the lock. The operation is simple and convenient, reducing the difficulty of use for the user. Through the cooperation of the elastic pressing part and the concave part, the correct password position can be accurately found by using the tactile feedback of resistance or locking, thus improving the user experience of the lock. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a three-dimensional schematic diagram of the internal structure of this utility model;
[0019] Figure 3 This is a top view of the internal structure of this utility model;
[0020] Figure 4 This is a schematic diagram illustrating the fit between the elastic pressing part and the recess of this utility model. Reference numerals: 1. Password wheel mechanism; 2. Password wheel assembly; 3. Recess; 4. Elastic pressing part; 5. Back cover; 6. Window; 7. Outer shell. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.
[0022] Reference Figure 1-4As shown, a password retrieval mechanism in this embodiment includes a password wheel mechanism 1. The password wheel assembly 2 of the password wheel mechanism 1 is provided with a recess 3, which corresponds to the position of the correct password on the password wheel assembly 2. An elastic pressing part 4 is provided at the position of each password wheel assembly 2. The user can rotate the password wheel assembly 2 by pressing down the elastic pressing part 4 until the elastic pressing part 4 enters the recess 3, generating resistance to the rotation of the password wheel assembly 2 or locking the password wheel assembly 2.
[0023] When a user forgets their password, preventing the lock from opening normally, the user can first open the lock using the spare key. At this time, the internal mechanism of the lock is unlocked, and the user can operate the combination wheel assembly 2. To retrieve the password, the user presses their finger on the elastic pressing part 4 of a specific combination wheel assembly 2, applying downward pressure to ensure the elastic pressing part 4 is in close contact with the combination wheel assembly 2 or pressed into it to a certain depth. In this state, the user rotates the combination wheel assembly 2. Since the combination wheel assembly 2 only has a recess 3 at the position corresponding to the correct password, when the user rotates the combination wheel assembly 2 to the correct password position, the elastic pressing part 4 aligns perfectly with the recess 3. Under the action of the elastic restoring force, a portion of the elastic pressing part 4 will engage within the recess 3. At this moment, the user's finger will clearly feel a change in resistance (such as a sudden increase in resistance or a jerking sensation), or the elastic pressing part 4, after engaging the recess 3, will restrict the rotation of the combination wheel assembly 2, locking it from rotating smoothly. The user can then determine from this tactile feedback that the number or symbol currently indicated by the combination wheel assembly 2 is a digit of the correct password. By performing the above operations on each combination wheel assembly 2 in sequence, the user can retrieve the correct password for each digit, avoiding the need to damage the lock or replace the lock cylinder due to forgetting the password, thus improving the convenience of lock maintenance.
[0024] To facilitate manufacturing and simplify assembly, in one alternative embodiment, the resilient pressing part 4 is integrally formed onto a rear cover 5.
[0025] By using injection molding and other processing techniques, the elastic pressing part 4 is directly integrated with the back cover 5 into a single component, eliminating the need for separate elastic parts, reducing the number of parts, and lowering production and assembly costs. Simultaneously, the one-piece molding structure ensures the relative positional accuracy between the elastic pressing part 4 and the back cover 5, guaranteeing that each elastic pressing part 4 accurately aligns with the corresponding password wheel assembly 2. This improves the stability and reliability of the password retrieval mechanism during operation, avoids the problem of the elastic pressing part 4 failing to accurately align with the recess 3 due to assembly errors, and enhances the user experience.
[0026] Further optimization can be achieved by selecting the following method: at least a portion of the elastic pressing part 4 protrudes from the surface of the back cover 5.
[0027] By designing a portion of the elastic pressing part 4 to protrude from the surface of the back cover 5, a clear pressing contact point is provided for the user, increasing the effective contact area between the finger and the operating part, making it easier for the user to apply force. During operation, the user can clearly perceive the position of the elastic pressing part 4, eliminating the need for groping and making the pressing operation more convenient and effortless. Furthermore, the protruding structural design also facilitates the deformation of the elastic pressing part 4 under pressure, allowing it to more flexibly adapt to the rotation of the password wheel assembly 2 and the position of the recess 3, improving operational sensitivity and thus enhancing the efficiency of password retrieval.
[0028] In some options, the elastic pressing part 4 is V-shaped, with a recessed position to match the recess 3 on the code wheel assembly 2, and one end is connected to the back cover 5, while the other end protrudes from the surface of the back cover 5.
[0029] The V-shaped elastic pressing part 4, with its unique structural shape, possesses excellent elastic deformation capability and reset performance. When the user presses down on the protruding end of the elastic pressing part 4, the V-shaped structure undergoes elastic deformation, and its concave position moves towards the combination wheel assembly 2. When the combination wheel assembly 2 rotates to the correct combination position, the concave position of the V-shaped structure can smoothly engage with the recess 3, forming a stable fit. This V-shaped structure not only provides a clear tactile feedback but also ensures that when the combination position is incorrect, the V-shaped arm applies a certain elastic pressure to the combination wheel assembly 2, thereby generating continuous rotational resistance. This enhances the user's tactile feedback during rotation, making it easier for the user to distinguish between the correct and incorrect positions, further improving the accuracy of combination retrieval.
[0030] To protect the elastic pressing part 4 and control its deformation range, further optimization can be achieved by providing a window 6 on the back cover 5 at the position corresponding to the elastic pressing part 4 for the elastic pressing part 4 to press. When the part of the elastic pressing part 4 protruding from the surface of the back cover 5 is pressed down, it abuts against the edge of the window 6 to limit the elastic pressing part 4 from continuing to press down.
[0031] The design of window 6 provides necessary space for the elastic pressing part 4 to reciprocate within and outside the back cover 5. When the user presses down on the elastic pressing part 4, it moves downward until its protruding portion abuts the edge of window 6. At this point, the edge of window 6 acts as a physical limiting structure, preventing the elastic pressing part 4 from moving further downward. This design effectively prevents excessive deformation or even plastic damage to the elastic pressing part 4 due to excessive force applied by the user, extending the service life of the mechanism. Simultaneously, the limiting design ensures that the pressing stroke of the elastic pressing part 4 is consistent with each operation, guaranteeing the consistency and stability of the mechanism's working state. It also prevents excessive pressing from causing the elastic pressing part 4 to be pressed inward and jammed, unable to reset.
[0032] This embodiment also provides a combination lock, including a housing 7, a back cover 5 mounted on the housing 7, and a combination wheel mechanism 1 mounted in the housing 7. The combination wheel assembly 2 of the combination wheel mechanism 1 is provided with a recess 3, which corresponds to the position of the correct combination on the combination wheel assembly 2. The back cover 5 is provided with an elastic pressing part 4 corresponding to the position of each combination wheel assembly 2. The user can rotate the combination wheel assembly 2 by pressing down the elastic pressing part 4 until the elastic pressing part 4 enters the recess 3, generating resistance to the rotation of the combination wheel assembly 2 or locking the combination wheel assembly 2.
[0033] This combination lock integrates the aforementioned password retrieval mechanism within the lock body, using the back cover 5 as a supporting component. This allows the lock to possess both conventional password locking and password retrieval functions. The outer shell 7 protects the internal mechanism, while the back cover 5 not only seals the outer shell 7 but also serves as the mounting base for the password retrieval mechanism, resulting in a compact overall structure. When a user forgets their password, there's no need to remove the lock from its mounting location or damage it; the retrieval operation can be performed simply by pressing the elastic part 4 on the back cover 5 while the lock remains in place. This design significantly enhances the lock's practicality and user-friendliness.
[0034] To facilitate manufacturing and reduce costs, in one alternative, the resilient pressing part 4 is integrally formed on a rear cover 5.
[0035] The one-piece molding manufacturing method simplifies the internal structure of the combination lock, reduces the number of connection links between parts, and lowers the risk of failure due to loose parts.
[0036] Further optimization can be achieved by selecting the following method: at least a portion of the elastic pressing part 4 protrudes from the surface of the back cover 5.
[0037] The prominent, elastic pressing part 4 provides a clear visual indication of the combination lock's operation, allowing users to easily identify the area for password retrieval. During operation, users can conveniently press this protruding part.
[0038] In some options, the back cover 5 has a window 6 at the position corresponding to the elastic pressing part 4, which allows the elastic pressing part 4 to be pressed. When the part of the elastic pressing part 4 protruding from the surface of the back cover 5 is pressed down, it abuts against the edge of the window 6 to limit the elastic pressing part 4 from pressing down further.
[0039] The limit function protects the fragile internal elastic structure and prevents damage to the mechanism caused by violent operation.
[0040] This embodiment also provides a trunk lock, which uses any of the above-mentioned combination locks.
[0041] Trunk locks are commonly used on vehicles such as electric bikes and motorcycles, and users may easily forget the combination due to prolonged inactivity. This trunk lock, by employing a combination lock with a password retrieval function, allows users to open the trunk with a key and then use the integrated password retrieval mechanism to retrieve the password. This process requires no special tools or trip to a repair shop; users can complete it themselves, greatly improving convenience, solving the problem of difficult-to-handle forgotten trunk lock passwords, and enhancing the after-sales experience.
[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A password retrieval mechanism, comprising a password wheel mechanism, characterized in that, The cipher wheel assembly of the cipher wheel mechanism is provided with a recess, which corresponds to the position of the correct cipher wheel assembly. Each cipher wheel assembly is provided with an elastic pressing part. The user can rotate the cipher wheel assembly by pressing down the elastic pressing part until the elastic pressing part enters the recess, generating resistance to the rotation of the cipher wheel assembly or locking the cipher wheel assembly.
2. The password retrieval mechanism according to claim 1, characterized in that, The elastic pressing part is integrally formed on a rear cover.
3. The password retrieval mechanism according to claim 2, characterized in that, At least a portion of the elastic pressing part protrudes from the surface of the back cover.
4. The password retrieval mechanism according to claim 3, characterized in that, The elastic pressing part is V-shaped, with the concave position used to match the concave part on the password wheel assembly, and one end is connected to the back cover, while the other end protrudes from the surface of the back cover.
5. The password retrieval mechanism according to claim 3 or 4, characterized in that, The back cover has a window at the position corresponding to the elastic pressing part for the elastic pressing part to press. When the part of the elastic pressing part protruding from the surface of the back cover is pressed down, it abuts against the edge of the window to limit the elastic pressing part from pressing down further.
6. A combination lock, comprising a housing, a back cover mounted on the housing, and a combination wheel mechanism mounted within the housing, characterized in that, The cipher wheel assembly of the cipher wheel mechanism is provided with a recess, which corresponds to the position of the correct cipher wheel assembly. The back cover is provided with an elastic pressing part corresponding to the position of each cipher wheel assembly. The user can rotate the cipher wheel assembly by pressing down the elastic pressing part until the elastic pressing part enters the recess, generating resistance to the rotation of the cipher wheel assembly or locking the cipher wheel assembly.
7. The combination lock according to claim 6, characterized in that, The elastic pressing part is integrally formed on a rear cover.
8. The combination lock according to claim 7, characterized in that, At least a portion of the elastic pressing part protrudes from the surface of the back cover.
9. The combination lock according to claim 8, characterized in that, The back cover has a window at the position corresponding to the elastic pressing part for the elastic pressing part to press. When the part of the elastic pressing part protruding from the surface of the back cover is pressed down, it abuts against the edge of the window to limit the elastic pressing part from pressing down further.
10. A trunk lock, characterized in that, The combination lock described in any one of claims 6 to 9 is used.