A cryptographic tumbler

Abstract

The utility model relates to the field of door buckle latch, concretely relates to a password latch. Rotating password lock assembly, because the limiting post is clamped in the limiting groove, the rotary motion of the password assembly is converted into the linear motion of the limiting plate, thereby driving the linear movement of the limiting plate and the movable plate, the limiting plate and the movable plate pass through the first insertion hole and the second insertion hole in turn, the movable plate is separated from the limitation of the shell, rotates around the pin joint of the side plate and is clamped in the second insertion hole, and the locking is realized. When unlocking, only need to rotate the password lock assembly in the reverse direction. By setting the limiting groove and the limiting post, it is ensured that only after the correct password is input, the limiting assembly can move, thereby driving the movable plate to pass through the first insertion hole and the second insertion hole and be clamped in the second insertion hole, and the unintentional unlocking situation caused by accidental collision or external force is effectively avoided. The problem that the existing latch is prone to wear or failure in the long-term use process due to the simple structure, thereby affecting normal use is solved.

Description

Technical Field

[0001] This utility model relates to the field of door latch technology, and in particular to a combination latch. Background Technology

[0002] In existing door lock systems, bolts, as a common auxiliary locking device, are widely used in access control systems for homes, offices, and public spaces. Traditional door lock bolts typically consist of simple mechanical components such as a housing, a bolt, and a return spring, relying on manual insertion or key operation to secure the door to the frame. However, due to their relatively simple construction, they are prone to problems such as spring fatigue, bolt deformation, or wear of internal mechanical components during long-term use, leading to bolts failing to lock or be pulled out properly, affecting the stability and reliability of use.

[0003] Therefore, there is an urgent need for a highly secure and stable password latch. Utility Model Content

[0004] To address the problem that existing latches, due to their simple construction, are prone to wear or malfunction during long-term use, thus affecting normal operation.

[0005] This utility model provides a combination lock pin, including a housing and a socket. The housing has a receiving cavity, and the bottom of the housing has a first insertion hole communicating with the receiving cavity. The socket has a second insertion hole corresponding to the position of the first insertion hole. The receiving cavity has a first side plate, a second side plate, and a movable plate inside. The first side plate and the second side plate are fixedly connected. The top of the first side plate and the top of the second side plate are both provided with limiting grooves. The movable plate is located between the first side plate and the second side plate, and the top of the movable plate is pinned to the first side plate. A combination lock assembly is rotatably connected to one side of the housing. The combination lock assembly is used to control the movement of the limiting assembly. A limiting post is provided on one side of the combination assembly, and the limiting post is locked in the limiting groove.

[0006] Preferably, the movable plate has a C-shaped structure, with a first groove in the middle and a second groove in the first side plate, the second groove being nested inside the first groove.

[0007] Preferably, the bottom of the first side plate is provided with a guide block, and the movable plates are symmetrically arranged on both sides of the guide block.

[0008] Preferably, notches are provided on both sides of the first side plate, and notches can be provided at both ends of the movable block.

[0009] Preferably, the width of the top of the second side plate is greater than the maximum width of the first socket diameter.

[0010] Preferably, guide grooves are provided on both sides of the top of the second side plate, and the housing is provided with threaded holes corresponding to the positions of the guide grooves. The housing and the second side plate are slidably connected by bolts passing through the threaded holes and the guide grooves.

[0011] Preferably, the housing is provided with a mounting base communicating with the receiving cavity, and the combination lock assembly includes a lock body and a rotating plate fixedly connected. The lock body is located inside the mounting base, and the rotating plate is located inside the receiving cavity. The rotating plate has a circular structure, and at least two limiting posts are provided and are equally spaced on the edge of the rotating plate.

[0012] Preferably, the lock body has a replaceable lock cylinder, which is either a digital dial combination lock cylinder or a fingerprint lock cylinder.

[0013] The beneficial effects of this utility model are as follows: When locking, after entering the correct password and rotating the combination lock assembly, the rotational motion of the combination lock assembly is converted into the linear motion of the limiting plate due to the limiting pin being engaged in the limiting groove. This causes the limiting plate and the movable plate to move linearly, passing through the first and second insertion holes in sequence. The movable plate then breaks free from the housing's constraint, rotates around the pin joint of the side plate, and engages in the second insertion hole, thus achieving locking. Unlocking is achieved simply by rotating the combination lock assembly in the opposite direction. By using the combination lock assembly to control the movement of the limiting plate and the movable plate, the traditional physical key unlocking method is replaced, increasing the difficulty for unauthorized personnel to attempt to open the lock. The limiting groove and limiting pin ensure that the limiting assembly can only move after the correct password is entered, thereby causing the movable plate to pass through the first and second insertion holes and engage in the second insertion hole, effectively preventing unintentional unlocking due to accidental collisions or external forces. This also solves the problem that existing bolts, due to their simple construction, are prone to wear or malfunction during long-term use, affecting normal operation. Attached Figure Description

[0014] Figure 1 This is a perspective view of a password latch provided by this utility model.

[0015] Figure 2 This is a cross-sectional view of a password latch provided by this utility model.

[0016] Figure 3 This is one of the exploded views of a password latch provided by this utility model.

[0017] Figure 4 This is the second exploded view of a password latch provided by this utility model.

[0018] In the diagram: 1-Housing shell; 11-Receiving cavity; 12-First insertion hole; 13-Threaded hole; 14-Mounting base; 2-Socket; 21-Second insertion hole; 3-First side plate; 31-Limiting groove; 32-Second groove; 33-Guide block; 34-Notch; 4-Second side plate; 41-Guide groove; 5-Moving plate; 51-First groove; 6-Combination lock assembly; 61-Limiting post; 62-Lock body; 63-Rotating plate. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Reference Figures 1-4 A combination lock pin includes a housing 1 and a socket 2. The housing 1 has a receiving cavity 11, and the bottom of the housing 1 has a first insertion hole 12 communicating with the receiving cavity 11. The socket 2 has a second insertion hole 21 corresponding to the position of the first insertion hole 12. The receiving cavity 11 has a first side plate 3, a second side plate 4 and a movable plate 5 inside. The first side plate 3 and the second side plate 4 are fixedly connected. The top of the first side plate 3 and the top of the second side plate 4 are both provided with limiting grooves 31. The movable plate 5 is located between the first side plate 3 and the second side plate 4, and the top of the movable plate 5 is pinned to the first side plate 3. A combination lock assembly 6 is rotatably connected to one side of the housing 1. The combination lock assembly 6 is used to control the movement of the limiting assembly. A limiting post 61 is provided on one side of the combination assembly, and the limiting post 61 is locked in the limiting groove 31.

[0021] When locking is required, enter the correct password and rotate the combination lock assembly 6. Because the limiting post 61 is engaged in the limiting groove 31, the rotational motion of the combination lock assembly is converted into linear motion of the limiting plate, thereby driving the limiting plate and the movable plate 5 to move linearly. The limiting plate and the movable plate 5 pass through the first insertion hole 12 and the second insertion hole 21 in sequence. The movable plate 5 is released from the constraint of the housing 1, rotates around the pin joint of the side plate, and engages in the second insertion hole 21, thus achieving locking. To unlock, simply rotate the combination lock assembly 6 in the opposite direction. By using the combination lock assembly 6 to control the movement of the limiting plate and the movable plate 5, the traditional physical key unlocking method is replaced, increasing the difficulty for unauthorized personnel to attempt to open the lock. By setting the limiting groove 31 and the limiting post 61, it is ensured that the limiting assembly can only move after the correct password is entered, thereby driving the movable plate 5 to pass through the first insertion hole 12 and the second insertion hole 21 and engage in the second insertion hole 21, effectively avoiding unintentional unlocking due to accidental collisions or external forces. This solves the problem that existing pins, due to their simple construction, are prone to wear or failure during long-term use, affecting normal operation.

[0022] Reference Figure 3 and 4 In some embodiments, the movable plate 5 has a C-shaped structure, with a first groove 51 in the middle of the movable plate 5 and a second groove 32 in the first side plate 3. The second groove 32 is nested inside the first groove 51.

[0023] By setting the first groove 51 and the second groove 32, the range of motion of the movable plate 5 is limited, preventing the movable plate 5 from derailing or getting stuck.

[0024] Reference Figure 4 In some embodiments, a guide block 33 is provided at the bottom of the first side plate 3, and the movable plate 5 is symmetrically arranged on both sides of the guide block 33.

[0025] By setting guide blocks 33, clear movement paths are provided for the movable plates 5 on both sides. This ensures that the movement trajectory of the movable plates 5 is limited during the locking and unlocking process, reducing the risk of the movable plates 5 shifting or getting stuck.

[0026] Reference Figure 4 In some embodiments, notches 34 are provided on both sides of the first side plate 3, and the notches 34 can be provided at both ends of the movable block.

[0027] Specifically, two notches 34 are provided on both sides of the first side plate 3. The notches 34 are located at the bottom and middle of both sides of the first side plate 3. By setting the notches 34, a movement path is provided for the movable block, and the swing range of the movable block is also limited.

[0028] Reference Figure 3 In some embodiments, the width of the top of the second side plate 4 is greater than the maximum width of the diameter of the first jack 12.

[0029] Since the second side plate 4 and the first side plate 3 are fixedly connected, and the movable plate 5 and the first side plate 3 are hinged, it is ensured that the first side plate 3, the second side plate 4 and the movable block will not accidentally slide out of the housing 1 from the first socket 12, thus maintaining the normal operation of the entire password latch.

[0030] Reference Figure 4 In some embodiments, guide grooves 41 are provided on both sides of the top of the second side plate 4, and the housing 1 is provided with threaded holes 13 corresponding to the positions of the guide grooves 41. The housing 1 and the second side plate 4 are slidably connected by bolts passing through the threaded holes 13 and the guide grooves 41.

[0031] The combination of guide groove 41 and bolts not only limits the movement path of the second side plate 4, the first side plate 3 and the movable plate 5, allowing them to move along the length of guide groove 41, but also enhances the stability of the connection structure between the second side plate 4 and the housing 1.

[0032] Reference Figure 3 and 4In some embodiments, the housing 1 is provided with a mounting base 14 communicating with the receiving cavity 11. The combination lock assembly 6 includes a lock body 62 and a rotating plate 63 fixedly connected. The lock body 62 is partially located inside the mounting base 14, and the rotating plate 63 is located inside the receiving cavity 11. The rotating plate 63 has a circular structure, and at least two limiting posts 61 are provided and are equally spaced on the edge of the rotating plate 63.

[0033] The lock body 62 and rotating plate 63 facilitate the installation and maintenance of the combination lock assembly 6. When the user rotates the lock body 62, the rotating plate 63 rotates accordingly, and the limiting post 61 contacts and pushes the first side plate 3 and the second side plate 4, thereby converting the rotational motion into linear or oscillating motion, which drives the movable plate 5 to complete the insertion and extraction action. The limiting posts 61 are at least two in number and evenly spaced, ensuring uniform force distribution during rotation, reducing jamming or wear, and improving rotational accuracy.

[0034] Preferably, the lock body 62 has a replaceable lock cylinder, which is either a digital dial combination lock cylinder or a fingerprint lock cylinder.

[0035] When the lock cylinder is damaged or security needs to be upgraded, simply replace the lock cylinder—convenient and economical. This enhances the flexibility of use and ease of maintenance.

[0036] In the description of embodiments of this utility model, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combination lock, comprising a housing and a socket, the housing having a receiving cavity, the bottom of the housing having a first socket communicating with the receiving cavity, and the socket having a second socket corresponding to the position of the first socket, characterized in that: The cavity contains a first side plate, a second side plate, and a movable plate. The first and second side plates are fixedly connected. The top of the first and second side plates are provided with limiting grooves. The movable plate is located between the first and second side plates, and the top of the movable plate is pinned to the first side plate. A combination lock assembly is rotatably connected to one side of the housing. The combination lock assembly is used to control the movement of the limiting assembly. A limiting post is provided on one side of the combination assembly, and the limiting post is locked in the limiting groove.

2. A password latch according to claim 1, characterized in that: The movable plate has a C-shaped structure, with a first groove in the middle and a second groove on the first side plate. The second groove is nested inside the first groove.

3. A password latch according to claim 1, characterized in that: The bottom of the first side plate is provided with a guide block, and the movable plates are symmetrically arranged on both sides of the guide block.

4. A combination lock according to claim 1, characterized in that: The first side plate has notches on both sides, and the movable block can have notches at both ends.

5. A password latch according to claim 1, characterized in that: The width of the top of the second side plate is greater than the maximum width of the first socket diameter.

6. A password latch according to claim 1 or 5, characterized in that: The second side plate has guide grooves on both sides of its top, and the housing has threaded holes corresponding to the positions of the guide grooves. The housing and the second side plate are slidably connected by bolts passing through the threaded holes and guide grooves.

7. A combination lock according to claim 1, characterized in that: The housing is provided with a mounting base communicating with the receiving cavity. The combination lock assembly includes a lock body and a rotating plate that are fixedly connected. The lock body is located inside the mounting base, and the rotating plate is located inside the receiving cavity. The rotating plate has a circular structure, and at least two limiting posts are provided and are equally spaced on the edge of the rotating plate.

8. A combination lock according to claim 7, characterized in that: The lock body has a replaceable lock cylinder, which can be a digital dial combination lock cylinder or a fingerprint lock cylinder.

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