Double-open type coded lock

By designing a double-opening combination lock, which combines a combination lock and a lock cylinder, it enables one person to use a password and another person to use a key to unlock the door, thus solving the problem of insufficient security in existing technologies and improving security and the difficulty of cracking in special situations.

CN223689466UActive Publication Date: 2025-12-19HENAN WANLIDA MACHINERY EQUIPMENT CO LTD

Patent Information

Application Number
CN202423030618.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-12-19
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

In existing technologies, ordinary door locks cannot meet the needs of two people who each have different keys and passwords to unlock the door together, which is especially true in special places such as vaults and warehouses for valuables, where security is insufficient.

Method used

Design a double-opening combination lock that combines a combination lock and a lock cylinder. The extension or retraction of the bolt is controlled by both the combination and the key, allowing one person to control the combination and another person to control the opening and closing of the lock, thus increasing security and difficulty.

Benefits of technology

It enables two people to jointly control the opening and closing of the lock, meets the needs of special occasions, improves security, has a simple structure with minimal modifications, makes full use of the original combination lock structure, and increases the difficulty of cracking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-open type coded lock, which comprises a coded lock and a lock cylinder, the coded lock comprises a code plate, a movable plate and a turn button arranged on the code plate, the lock cylinder is arranged on the code plate, the double-open type coded lock is characterized by further comprising a straight tongue plate, an unlocking limiting plate and a shifting button arranged on the lock cylinder, a spring bolt is arranged at the end part of the straight tongue plate, and the movable plate is arranged on the lock cylinder. The end of the unlocking limiting plate is connected with the movable plate, after the rotary button unlocks, the shifting button can rotate along with rotation of the key so as to jack up the unlocking limiting plate to drive the straight tongue plate to move to achieve unlocking and locking, and the movable plate can be pushed to move while the unlocking limiting plate moves.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a password lock, in particular to a double-opening type password lock. BACKGROUND

[0002] In some special occasions (such as vault, warehouse of valuable articles, or some safety deposit box), two people need to hold different keys for security, and two people need to open the lock together to open the door. Ordinary door lock cannot be used in the above-mentioned occasions.

[0003] Therefore, the applicant combines the password lock (such as patent number: 202020053392.9; patent name: multifunctional mechanical password lock) and the ordinary lock cylinder to design a double-opening type password lock, which needs password and key to open or lock at the same time, thereby meeting the market demand. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a double-opening type password lock.

[0005] The utility model solves the technical problems adopted by the technical scheme:

[0006] A double-opening type password lock, comprising a password lock and a lock cylinder, the password lock comprising a password plate, a movable plate, a rotating knob provided on the password plate, the lock cylinder being installed on the password plate, characterized in that: further comprising a straight tongue plate, a unlocking limiting plate, a knob provided on the lock cylinder, the end of the straight tongue plate is provided with a lock tongue, the end of the unlocking limiting plate is connected with the movable plate, after the rotating knob is unlocked, the knob can be rotated with the rotation of the key to lift the unlocking limiting plate and drive the straight tongue plate to move to realize unlocking and locking, and the unlocking limiting plate can move while pushing the movable plate to move.

[0007] The unlocking limiting plate is provided with an inside opening button and an elastic element capable of resetting the unlocking limiting plate, the end of the unlocking limiting plate is swing connected with the movable plate, one end of the inside opening button is located outside the lock shell, and when the inside opening button is pressed, the other end of the unlocking limiting plate swings to avoid the knob.

[0008] The movable plate is provided with a connecting plate one, the password plate is provided with a avoiding hole, the connecting plate is provided with a swing hole, the end of the unlocking limiting plate is provided with a connecting plate two inserted into the swing hole, and the connecting plate two can swing in the swing hole.

[0009] The password plate is provided with a guide column, and the unlocking limiting plate is provided with a guide hole matched with the guide column.

[0010] The elastic element is a spring and is arranged on the guide column, one end of the spring abuts against the password plate, and the other end of the spring abuts against the unlocking limiting plate.

[0011] The straight tongue plate is provided with a pushing groove, and the turning knob can be clamped into the pushing groove to drive the straight tongue plate to move.

[0012] The guide column is provided with a guide rod, and the straight tongue plate is provided with a guide groove matched with the guide rod.

[0013] The beneficial effect of the utility model is: the present password lock combines with the lock core and increases the straight tongue plate, the password lock and the lock core jointly control the straight tongue plate to stretch out or retract, thereby realizing locking and unlocking, so that one person can master the password and another person can master the key, and the opening and closing of the lock is jointly controlled, the simultaneous unlocking or locking is realized, thereby meeting the needs of some special occasions and the market demand, and the structure is simple, the change is small, the structure of the original password lock can be fully utilized, and different unlocking modes are organically combined together, which increases the difficulty for some people who want to crack the lock and improves the security of the lock. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in combination with the drawings and examples.

[0015] Figure 1 It is the three-dimensional structure view of the utility model;

[0016] Figure 2 It is another direction structure view of the utility model;

[0017] Figure 3 It is the internal structure view of the utility model;

[0018] Figure 4 It is another direction internal structure view of the utility model;

[0019] Figure 5 It is the internal explosion structure view of the utility model. DETAILED DESCRIPTION

[0020] The advantages and features of the present disclosure and its implementation method will be clarified by the following implementation scheme described by referring to the drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the implementation schemes set forth herein. On the contrary, these implementation schemes are provided to make the present disclosure comprehensive and complete, and to fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0021] The shapes, sizes, proportions, angles, and numbers disclosed in the accompanying drawings for describing embodiments of the present disclosure are merely examples, and thus the present disclosure is not limited to the shown details. Throughout the present specification, the same reference numerals refer to the same elements. In the following description, detailed descriptions of functions or configurations that are deemed to unnecessarily obscure the gist of the present disclosure will be omitted when the relevant known functions or configurations are determined to be unnecessary. In the case where “include,” “have,” and “comprise” are used in the present specification, other components can be added unless “only” is used. Unless indicated to the contrary, singular forms can include plural forms.

[0022] In explaining elements, although not explicitly described, the elements are understood to include an error range.

[0023] In describing positional relationships, for example, when the positional relationship is described as “on,” “above,” “below,” and “adjacent to,” one or more parts can be disposed between two other parts unless “immediately” or “directly” is used.

[0024] In describing temporal relationships, for example, when the temporal order is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases can be included unless “immediately” or “directly” is used.

[0025] It should be understood that although the terms “first,” “second,” and the like can be used herein to describe various elements, the elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element without departing from the scope of the present disclosure.

[0026] As a person of ordinary skill in the art can fully understand, the features of different embodiments of the present disclosure can be partially or wholly coupled or combined with each other, and can be cooperated with each other in various ways and technically driven. Embodiments of the present disclosure can be executed independently of each other or can be executed together in a mutually dependent relationship.

[0027] Reference Figures 1 to 5The utility model discloses a double -open type coded lock, including coded lock and lock core 1, the coded lock includes coded board 2, movable plate 3, sets up the knob 4 on coded board 2, lock core 1 installs on coded board 2, the structure is all the existing structure and thus concrete is not detailed, still including straight tongue plate 5, unlocking limit board 6, set up on the knob 7 of lock core 1, straight tongue plate 5 is a square board, the end thickening of straight tongue plate 5 becomes the lock tongue, such high intensity, straight tongue plate 5 and movable plate 3 are set up and present ninety degrees, and thus straight tongue plate 5 moves along the transverse, and movable plate 3 and unlocking limit board 6 move along the longitudinal, the end of unlocking limit board 6 is connected with movable plate 3, after coded unlocking of knob 4, the unlocking recess 9 on the runner 8 will rotate to the position opposite the protruding 10 on movable plate 3, and movable plate 3 can move to make the protruding 10 on movable plate 3 embed the unlocking recess 9 on runner 8, such that the movement restriction of movable plate 3 is released, because movable plate 3 and unlocking limit board 6 have connection again, thus when movable plate 3 can not move, unlocking limit board 6 also can not move together, but after the movement restriction of movable plate 3 is released, unlocking limit board 6 can push movable plate 3 and move together, thus when the key is inserted into lock core 1, knob 7 is fixedly connected with lock cartridge, thus when the key is inserted into lock core 1 and drives lock cartridge to rotate, can also drive knob 7 to rotate, and lock core 1 is prior art, thus the connection relationship and structure of knob 7 and lock cartridge are not detailed, and knob 7 rotates with the rotation of the key and can push unlocking limit board 6 and drive straight tongue plate 5 to move to realize unlocking and locking.

[0028] In the above structure, if it is the locking state, after the password is disturbed, the protrusion 10 on the movable plate 3 abuts against the outer side wall of the runner 8 and cannot move, and at this time, the straight tongue plate 5 is in the extended state and cooperates with the outside lock hole to realize locking, and the eccentric end 22 of the knob 7 is located at the lower position away from the straight tongue plate 5; when unlocking, after the key is inserted into the lock core 1, the knob 7 rotates with the rotation of the key, and the eccentric end 22 rotates to the upper position to push the unlocking limit board 6 and drive the straight tongue plate 5 to move to realize unlocking.

[0029] As a preferred structure, the coded board 2 is provided with a guide column 11, the unlocking limit board 6 is provided with a guide hole 12 matched with the guide column 11, and the guide hole 12 is a long hole. Through the above structure, it can be ensured that the unlocking limit board 6 moves linearly along the guide hole 12 without deflection.

[0030] As a preferred structure, the straight tongue plate 5 is provided with a push groove 13, and two push grooves 13 are arranged in the application. The knob 7 can be clamped into the push groove 13 to drive the straight tongue plate 5 to move. When unlocking, the eccentric end 22 of the knob 7 can be clamped into one push groove 13 to drive the straight tongue plate 5 to move. When locking, the eccentric end 22 of the knob 7 can be clamped into another push groove 13 to drive the straight tongue plate 5 to move in the opposite direction.

[0031] As shown in the figure, the lock cylinder 1 of the present application is with an inside opening small knob 14, the small knob 14 is a conventional technical design, thus the specific structure and connection relationship are not described in detail, when a person is in the room and someone outside locks the door and breaks the password, the inside opening small knob 14 can directly open the lock, avoiding the risk of accidentally locking the indoor personnel. Specifically, the unlocking limiting plate 6 is provided with an inside opening button 25 and an elastic element 15 capable of resetting the unlocking limiting plate 6, the end of the unlocking limiting plate 6 is swing connected with the movable plate 3, one end of the inside opening button 25 is located outside the lock shell, and when the inside opening button 25 is pressed, the other end of the unlocking limiting plate 6 swings to avoid the dial 7, the indoor personnel only needs to press the inside opening button 25 to move one end of the unlocking limiting plate 6, the unlocking limiting plate 6 can be out of position with the dial 7, so that the dial 7 cannot be limited, at this time, the dial 7 can be rotated by the small knob 14, and the dial 7 can drive the straight tongue plate 5 to move to directly open the lock.

[0032] As a specific structure, the movable plate 3 is provided with a connecting plate one 16, the password plate 2 is provided with a avoiding hole 17, the connecting plate one 16 passes through the avoiding hole 17, the connecting plate is provided with a swing hole 18, the end of the unlocking limiting plate 6 is provided with a connecting plate two 19 inserted into the swing hole 18, the connecting plate two 19 can swing in the swing hole 18, the width of the hole of the swing hole 18 is slightly larger than the thickness of the connecting plate two 19, thus the connecting plate two 19 can swing in the swing hole 18, and the width of the unlocking limiting plate 6 is larger than the length of the hole of the swing hole 18, thus the unlocking limiting plate 6 can push the connecting plate to move the movable plate 3, the above structure is simple, and the internal space of the password lock is fully utilized for setting.

[0033] As shown in the figure, the specific installation structure of the spring is that the elastic element 15 is a spring and is arranged on the guide column 11, one end of the spring abuts against the password plate 2 and the other end of the spring abuts against the unlocking limiting plate 6, so that the spring does not deviate when it is compressed or stretched. As a further structure, the guide column 11 is provided with a guide rod 20, the guide column 11 is thicker than the guide rod 20, the straight tongue plate 5 is provided with a guide groove 21 matched with the guide rod 20, so that the guide column 11 and the guide rod 20 are designed in an overlapping manner, not only saving space, but also the guide column 11 can limit the straight tongue plate 5 to prevent it from coming out of the guide rod 20, of course, the other side of the straight tongue plate 5 is limited by the bottom plate 23 fixed with the lock box 24, and the straight tongue plate 5 can limit the unlocking limiting plate 6 from coming out of the guide column 11.

[0034] The above has carried out the detailed introduction to the double-open type password lock provided by the embodiment of the utility model, the principle and implementation mode of the utility model have been described in this paper by applying specific examples, the above embodiment is only used for helping understanding the method and core idea of the utility model; simultaneously, for the general technical personnel in the art, according to the idea of the utility model, there will be changes in specific implementation mode and application range, and the above is not understood as the limitation of the utility model.

Claims

1. A double open type combination lock comprising a combination lock and a lock cylinder, the combination lock comprising a combination plate, a movable plate, a rotating knob arranged on the combination plate, and the lock cylinder being mounted on the combination plate, characterized in that: Also include straight tongue plate, unlocking limit plate, set on the lock core knob, the end of the straight tongue plate is provided with a lock tongue, the end of the unlocking limit plate is connected with the movable plate, after the rotation of the knob, the knob can be rotated with the rotation of the key to lift the unlocking limit plate to drive the straight tongue plate to move to achieve the unlocking and locking, and the unlocking limit plate can move while pushing the movable plate to move.

2. A dual-action combination lock according to claim 1, wherein: The unlocking limit plate is provided with an inside opening button and an elastic element capable of resetting the unlocking limit plate, the end of the unlocking limit plate is swing connected with the movable plate, one end of the inside opening button is located outside the lock shell, and when the inside opening button is pressed, the other end of the unlocking limit plate swings to avoid the knob.

3. A twin flap combination lock according to claim 2, wherein: The movable plate is provided with a connecting plate one, the password plate is provided with a avoiding hole, the connecting plate is provided with a swing hole, the end of the unlocking limit plate is provided with a connecting plate two inserted into the swing hole, and the connecting plate two can swing in the swing hole.

4. A twin flap combination lock according to claim 2, wherein: The password plate is provided with a guide column, and the unlocking limit plate is provided with a guide hole matched with the guide column.

5. A twin flap combination lock according to claim 4 wherein: The elastic element is a spring and is arranged on the guide column, one end of the spring abuts against the password plate, and the other end of the spring abuts against the unlocking limit plate.

6. A twin flap combination lock according to claim 1, wherein: The straight tongue plate is provided with a slot, and the knob can be clamped into the slot to drive the straight tongue plate to move.

7. A twin flap combination lock according to claim 4 wherein: The guide column is provided with a guide rod, and the straight tongue plate is provided with a guide groove matched with the guide rod.

Citation Information

Patent Citations

  • Multifunctional mechanical coded lock

    CN211776562U

Cited By

  • Combined mechanical lock with password key

    CN119686587A