Coded lock
By introducing the cooperation of sliding blocks and sliding grooves and the design of locking balls and grooves in the combination lock, the problems of security, ease of operation and durability of combination locks are solved, achieving the effects of high security, convenient replacement and compact structure.
Patent Information
- Application Number
- CN202520439202.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing combination locks suffer from problems such as inconvenience in changing the password, insufficient security, complex operation, and poor durability and reliability.
A combination lock comprising a base, a lock body, and a lock cylinder was designed. The correct rotation of the combination wheel is achieved through the cooperation of a sliding block and a sliding groove. Combined with the cooperation of a locking ball and a groove, the lock cylinder and lock body are securely locked together, and the combination can be easily changed.
It improves the security of the combination lock, simplifies the operation process, enhances the convenience of changing the password, and has a compact and durable structure.
Smart Images
Figure CN223880927U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lockset, concretely points to a password lock. BACKGROUND
[0002] As a common lockset, password locks are widely used in various scenarios that require security assurance, such as safes, door locks, luggage cases, etc. Traditional password locks mainly rely on mechanical structures to achieve locking and unlocking functions, and their core lies in controlling the opening of the lockset through a pre-set password combination. According to existing technology, password locks are mainly divided into two categories: mechanical password locks and electronic password locks.
[0003] Mechanical password locks: usually input passwords by rotating password wheels or dialing password discs. The rotation of password wheels or password discs drives the mechanical structure inside the lock cylinder to move. Only when the password is correct, the lock cylinder can be released, thus achieving unlocking. The advantage of mechanical password locks lies in their simple structure and high reliability, but the disadvantage is that the operation is relatively cumbersome, and the password is inconvenient to change.
[0004] Electronic password locks: achieve password input and verification through electronic circuits and digital keyboards. The advantage of electronic password locks lies in their convenient operation, the ability to change passwords at any time, and the integration of multiple functions (such as fingerprint recognition, remote control, etc.). However, the disadvantage of electronic password locks is their dependence on power supply, the risk of battery depletion or circuit failure, and higher cost.
[0005] Despite the continuous progress of existing password lock technology, there are still some limitations, mainly reflected in the following aspects:
[0006] 1. Inconvenient password change:
[0007] Mechanical password locks: the password change of most mechanical password locks requires professional tools and operation steps, which users cannot complete by themselves. This not only increases the use cost, but also reduces the flexibility and user experience of the password lock.
[0008] Electronic password locks: although electronic password locks can easily change passwords, frequent password change operations may cause wear and tear or failure of electronic components. In addition, the password storage of electronic password locks relies on internal memory, which has the risk of being cracked or tampered with.
[0009] 2. Security issues:
[0010] Mechanical password locks: due to their relatively simple structure, they are easily cracked by technical means (such as code dialer, vibration decoding, etc.). In addition, the number of password combinations of mechanical password locks is limited, which is easily cracked by brute force.
[0011] Electronic combination lock: Although electronic combination locks can improve security through encryption algorithms, they are still vulnerable to hacking. Additionally, the circuit board and battery compartment of electronic combination locks are easy targets for attacks.
[0012] 3. Complex operation:
[0013] Mechanical combination lock: The operation steps are cumbersome, requiring users to accurately remember the password and operate in a specific order, which can easily lead to unlocking failure due to misoperation.
[0014] Electronic combination lock: Although the operation is relatively simple, users need to be familiar with the use of the numeric keypad, and in low light or emergency situations, the operation may not be convenient.
[0015] 4. Durability and reliability:
[0016] Mechanical combination lock: Long-term use can cause mechanical parts to wear out, affecting the accuracy and reliability of the combination lock.
[0017] Electronic combination lock: Electronic components are susceptible to environmental factors such as temperature and humidity, which can cause malfunctions or failures.
[0018] Therefore, a combination lock is proposed to address the existing deficiencies. Invention content
[0019] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned technology and provide a combination lock.
[0020] To solve the above technical problems, the technical solution provided by the present application is a combination lock: comprising a base, a lock body and a lock head;
[0021] The lock body comprises a lock seat, a lock shaft and a lock wheel, a plurality of lock wheels are sleeved on the lock shaft in sequence, a password wheel is sleeved on the lock wheel, an installation seat matched with the lock wheel is arranged in the lock seat, a sliding button matched with the lock wheel is arranged at one end of the lock seat, a push block is arranged at the other end of the lock shaft, and a spring matched with the lock wheel and the push block is sleeved on the lock shaft;
[0022] The other end of the lock seat is provided with a hole slot matched with the lock head, the lock seat is provided with a locking ball matched with the lock head on both sides of the hole slot, a push frame matched with the locking ball is arranged in the lock seat, and the push frame is matched with the push block;
[0023] The lock shaft and the lock wheel are provided with a locking part to ensure the relative position between the lock shaft and the lock wheel;
[0024] An upper cover body is arranged on the lock seat, and one end of the upper cover body away from the lock head is rotationally connected with the base.
[0025] As improvement, the password wheel is circumferentially provided with a plurality of tooth grooves, and the lock seat is provided with tooth hook members matched with the tooth grooves.
[0026] As improvement, the locking part comprises a sliding block arranged on the lock shaft and a sliding groove arranged on the lock wheel, and the sliding block is matched with the sliding groove and arranged along the axial direction of the lock shaft.
[0027] As improvement, the extension rod is rotatably connected with the base and the upper cover body at two ends respectively.
[0028] As improvement, the lock head is provided with grooves matched with the locking balls.
[0029] As improvement, the lock seat is provided with a sliding groove matched with a push block, the push block is provided with a limiting block at the bottom, and the lock seat is provided with a limiting groove at the lower part of the sliding groove.
[0030] As improvement, the lock wheel is symmetrically provided with positioning blocks on the outer side, and the password wheel is circumferentially and uniformly provided with positioning grooves matched with the positioning blocks on the inner side, and the lock wheel is slidably matched with the password wheel.
[0031] As improvement, the upper cover body is provided with a switch groove matched with the sliding knob.
[0032] Compared with the prior art, the utility model has the advantages of:
[0033] 1. High safety: by setting the sliding block and the sliding groove, when the password wheel rotates to the correct password, the lock shaft can be moved to realize unlocking, increasing the safety of the password lock. At the same time, the cooperation of the locking ball and the groove ensures the firm locking of the lock head and the lock body, preventing illegal opening.
[0034] 2. Simple operation: the user only needs to rotate the password wheel according to the preset password to easily realize the unlocking and locking operation. In addition, the password changing operation is simple, and the password wheel only needs to be adjusted to display the corresponding number, and the sliding knob can be pushed to change the password.
[0035] 3. Compact structure: the password lock is designed reasonably, the connection between the components is close, and the overall structure is compact, which is convenient to install and use. At the same time, the design of the extension rod makes it convenient to lock within a certain distance.
[0036] 4. The password lock is suitable for various scenes, such as safety protection of home, office, hotel and other places. The password lock has simple structure and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS
[0037] Figure 1 is a structural schematic view of the utility model discloses a password lock.
[0038] Figure 2It is the explosion drawing of the password lock of the utility model.
[0039] Figure 3 It is the top view of the password lock of the utility model Figure 1 .
[0040] Figure 4 It is Figure 3 the sectional view of A-A in the utility model.
[0041] Figure 5 It is the top view of the password lock of the utility model Figure 2 .
[0042] Figure 6 It is Figure 5 the sectional view of B-B in the utility model.
[0043] Figure 7 It is the internal structure schematic view of the lock body and the lock head part in the utility model password lock.
[0044] Figure 8 It is the structure schematic view of the lock seat in the utility model password lock.
[0045] Figure 9 It is the structure schematic view of another embodiment of the utility model password lock.
[0046] As shown in the figure:
[0047] 1, base;
[0048] 2, lock body, 21, lock seat, 22, lock shaft, 23, lock wheel, 24, password wheel, 25, mounting seat, 26, slide button, 28, push block, 29, spring;
[0049] 3, lock head, 4, hole groove, 5, locking ball, 6, push frame, 7, upper cover body, 8, tooth groove, 9, tooth hook piece, 10, sliding block, 11, sliding groove, 12, extension rod, 13, recess, 14, sliding groove, 15, limit block, 16, limit groove, 17, positioning block, 18, positioning groove. Specific embodiments
[0050] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.
[0051] In the description of the utility model embodiments, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is placed, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.
[0052] In addition, if the terms "horizontal", "vertical", "overhanging" and the like are used, they do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0053] In the description of the utility model embodiments, "a plurality of" represents at least 2.
[0054] In the description of the utility model embodiments, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" are used, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0055] In combination with the drawings, a password lock includes a base 1, a lock body 2 and a lock head 3;
[0056] The lock body 2 includes a lock seat 21, a lock shaft 22 and a lock wheel 23, a plurality of lock wheels 23 are sleeved on the lock shaft 22 in sequence, and the lock shaft 22 can move along the axis direction of the lock wheel 23;
[0057] Specifically, the lock shaft 22 and the lock wheel are provided with a locking part to ensure the relative position between the lock shaft 22 and the lock wheel 23.
[0058] Specifically, the locking part includes a sliding block 10 arranged on the lock shaft 22 and a sliding groove 11 arranged on the lock wheel 23, and the sliding block 10 and the sliding groove 11 are matched and arranged along the axis direction of the lock shaft 22.
[0059] In the embodiment, the number of sliding blocks 10 is the same as the number of sliding grooves 11. When the several code wheels 24 are rotated to the numbers corresponding to the preset code, the sliding blocks 10 on the lock shaft 22 are matched with the sliding grooves 11 on the lock wheel 23, the lock shaft 22 can be axially moved, and at this time, the code lock is in the unlocking state.
[0060] When the code wheels 24 are in the disorder state, the sliding blocks 10 on the lock shaft 22 are separated from the sliding grooves 11 on the lock wheel 23, at this time, the lock shaft 22 is in the locking state.
[0061] The lock wheel 23 is sleeved with the code wheel 24. In the implementation, the rotation of the code wheel 24 drives the rotation of the lock wheel 23.
[0062] Specifically, the lock wheel 23 is symmetrically provided with a positioning block 17 on the outside, the code wheel 24 is uniformly provided with a positioning groove 18 matched with the positioning block 17 on the inside in the circumferential direction, and the lock wheel 23 is in sliding cooperation with the code wheel 24.
[0063] In the embodiment, the cooperation of the positioning block 17 and the positioning groove 18 can ensure the fixed connection between the code wheel 24 and the lock wheel 23. When the lock wheel 23 moves to separate the positioning block 17 from the positioning groove 18, the code wheel 24 can be idled to realize the replacement of the code.
[0064] Further, the code wheel 24 is uniformly provided with a plurality of tooth grooves 8 in the circumferential direction, one side of the lock seat 21 is provided with a tooth hook piece 9 matched with the tooth groove 8, the cooperation of the hook-shaped piece 19 and the limiting groove 8 on the code wheel 24 can ensure the fixation of the rotating position of the code wheel 24, and the misrotation of the code wheel 24 is avoided.
[0065] The lock seat 21 is internally provided with a mounting seat 25 matched with the lock wheel 23. In the embodiment, the lock wheel 23 is in rotational connection with the mounting seat 25 and can be moved along the axis.
[0066] One end of the lock seat 21 is slidably provided with a slide button 26 in abutment with the lock wheel 23. The slide button 26 can be moved along the length direction of the lock seat 21. Through the movement of the slide button 26, the movement of the lock wheel 23 is driven to separate the positioning block 17 from the positioning groove 18. At this time, the code wheel 24 can be individually rotated to replace the code.
[0067] The other end of the lock shaft 22 is provided with a push block 28. The lock shaft 22 is sleeved with a spring 29 in abutment with the lock wheel 23 and the push block 28.
[0068] In use, the cooperation between the lock wheel 23 and the code wheel 24 can be ensured through the setting of the spring 29, and at the same time, the lock shaft 22 can be pushed to move away from the one end of the base 1.
[0069] In addition, after the password is replaced, the spring 29 pushes the lock wheel 23 to reset, so as to ensure the cooperation between the lock wheel 23 and the password wheel 24.
[0070] Further, the lock seat 21 is provided with a sliding groove 14 matched with the push block 28, the bottom of the push block 28 is provided with a limiting block 15, and the lower part of the lock seat 21 is provided with a limiting groove 16.
[0071] In the implementation, the push block 28 moves with the lock shaft 22, and the cooperation between the sliding groove 14 and the push block 28 can guide the movement of the push block 14, and can prevent the axial rotation of the lock shaft 22.
[0072] The cooperation between the limiting block 15 and the limiting groove 16 can limit the displacement of the push block 28, so as to prevent the separation of the lock shaft 22 and the lock wheel 23.
[0073] The other end of the lock seat 21 is provided with a hole groove 4 matched with the lock head 3, the two sides of the lock seat 21 are provided with locking balls 5 matched with the lock head 3, and the two sides of the lock head 3 are provided with grooves 13 matched with the locking balls 5.
[0074] In the implementation, the cooperation between the locking ball 5 and the groove 13 can realize the fixed connection between the lock head 3 and the lock seat 21, so as to realize the locking state of the password lock.
[0075] Further, the lock seat 21 is provided with a push frame 6 matched with the locking ball 5, the push frame 6 is matched with the push block 28, and the push frame 6 is slidingly matched with the lock seat 21.
[0076] Specifically, when the push frame 6 pushes the locking ball 5 to move and matches with the groove 13 on the lock head 3, the locking state of the password lock is realized, when the push frame 6 is in the active state, the lock body 2 is pulled upward, the locking ball 5 is separated from the groove 13, and the password lock is in the openable state.
[0077] In the implementation, under the pushing of the spring 29, the lock shaft 22 drives the push frame 6 to move towards the locking ball 5, so as to realize the cooperation between the locking ball 5 and the groove 13 on the lock head 3, when each password wheel 24 rotates to the correct position, the lock shaft 22 is in the active state, at this time, the lock shaft 22 can move along the axial direction,
[0078] The lock seat 21 is provided with an upper cover body 7, the end of the upper cover body 7 away from the lock head 3 is rotationally connected with the base 1, the upper cover body 17 is provided with a switch groove 19 matched with the sliding button 26, so as to limit the movement range of the sliding button 26.
[0079] As another embodiment, the extension rod 12 is rotatably connected with the base 1 and the upper cover 7 at two ends, so as to realize the locking operation of the combination lock at a distance.
[0080] In the initial state, the combination lock is in the locked state.
[0081] When the unlocking operation is performed, the corresponding combination wheel 7 is rotated according to the preset password, and the number in the corresponding password is displayed.
[0082] When locking is needed, the lock body 2 is pressed downward to make the lock head 3 cooperate with the lock body 2.
[0083] When the password needs to be changed, the corresponding combination wheel 7 is moved to display the number in the corresponding password, and the slide button 26 is pushed to move towards the end of the lock head 3.
[0084] The above description of the utility model and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which shall belong to the protection scope of the utility model.
Claims
1. A combination lock, characterized by: It comprises a base (1), a lock body (2) and a lock head (3); The lock body (2) comprises a lock seat (21), a lock shaft (22) and a lock wheel (23), a plurality of lock wheels (23) are sequentially connected at the lock shaft (22), a password wheel (24) is arranged on the lock wheel (23), the lock seat (21) is provided with a mounting seat (25) matched with the lock wheel (23), one end of the lock seat (21) is provided with a sliding button (26) matched with the lock wheel (23), the other end of the lock shaft (22) is provided with a push block (28), and a spring (29) is arranged on the lock shaft (22) and matched with the lock wheel (23) and the push block (28). The other end of the lock seat (21) is provided with a hole slot (4) matched with the lock head (3), the lock seat (21) is provided with a locking ball (5) matched with the lock head (3) on both sides of the hole slot (4), the lock seat (21) is provided with a push frame (6) matched with the locking ball (5), and the push frame (6) is matched with the push block (28). The lock shaft (22) and the lock wheel are provided with a locking part to ensure the relative position between the lock shaft (22) and the lock wheel (23). The lock seat (21) is provided with an upper cover body (7), and one end of the upper cover body (7) away from the lock head (3) is rotationally connected with the base (1).
2. A combination lock according to claim 1, wherein: The password wheel (24) is uniformly provided with a plurality of tooth grooves (8) in the circumferential direction, and one side of the lock seat (21) is provided with a tooth hook piece (9) matched with the tooth groove (8).
3. A combination lock according to claim 1, wherein: The locking part comprises a sliding block (10) arranged on the lock shaft (22) and a sliding groove (11) arranged on the lock wheel (23), and the sliding block (10) is matched with the sliding groove (11) and arranged along the axis direction of the lock shaft (22).
4. The combination lock of claim 1, wherein: It also comprises an extension rod (12), and both ends of the extension rod (12) are rotationally connected with the base (1) and the upper cover body (7) respectively.
5. The combination lock of claim 1, wherein: The lock head (3) is provided with a groove (13) matched with the locking ball (5) on both sides.
6. A combination lock according to claim 1, wherein: The lock seat (21) is provided with a sliding groove (14) matched with the push block (28), the bottom of the push block (28) is provided with a limiting block (15), and the lock seat (21) is provided with a limiting groove (16) at the lower part of the sliding groove (14).
7. A combination lock according to claim 1, wherein: The lock wheel (23) is symmetrically provided with a positioning block (17) on the outer side, the password wheel (24) is uniformly provided with a positioning groove (18) matched with the positioning block (17) on the inner side in the circumferential direction, and the lock wheel (23) is matched with the password wheel (24).
8. The combination lock of claim 1, wherein: The upper cover body (7) is provided with a switch groove (19) matched with the sliding button (26).