Double-layer door lock with hidden lock hole
By designing a hidden double-layer door lock for lock holes, the lock hole is hidden by password locks and opened by mechanical keys, the problem of poor anti-theft performance caused by exposure of existing mechanical door lock lock holes is solved, achieving high safety and convenient operation effect .
Patent Information
- Application Number
- CN202420525097.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The lock holes of existing mechanical door locks are exposed and are easily opened abnormally by others through tools, resulting in poor anti-theft performance.
A lock hole hidden double-layer door lock is designed, adopting a two-layer lock-in form. The first layer opens the lock hole by entering a password, and the second layer opens the door lock with a mechanical key.
It improves the anti-theft performance and safety of the door lock, avoids the problem of the lock hole being blocked by others, and at the same time it has a reasonable structure and convenient operation.
Smart Images
Figure CN222501334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door locks, in particular to a double-layer door lock with a hidden keyhole. Background Art
[0002] As the name implies, a door lock is a device used to lock a door to prevent others from opening it. There are many types of door locks, and the requirements for door locks are different in different occasions. Ordinary families generally use mechanical door locks, which are stable, safe, simple to operate, and relatively cheap, and are the most widely used. Mechanical door locks generally use a key to insert into the keyhole and open it by twisting the key. At this stage, most of the keyholes are exposed to the outside world, and others can easily insert tools into the keyhole, which is prone to abnormal opening of the door lock and has poor anti-theft performance. Although some mechanical door locks now have a protective cover at the keyhole, the protective cover is generally to prevent foreign objects from entering the keyhole, and there is no locking device. It can be easily opened by hand with a prying tool, and the problem of opening the lock through the keyhole cannot be avoided. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a double-layer door lock with hidden keyhole.
[0004] In order to solve the above technical problems, the technical solution provided by the utility model is a double-layer door lock with hidden keyhole: comprising a lock shell, a mechanical door lock and a password lock arranged on the lock shell; the password lock comprises a display touch screen, a control processor electrically connected to the display touch screen, a motor electrically connected to the control processor, a gear arranged on the motor shaft, a rack meshing with the gear, a connecting rod fixedly connected to one end of the rack, and a password lock tongue fixedly connected to one end of the connecting rod; the lock shell is provided with a groove, and the lock hole of the mechanical door lock is arranged in the groove The lock shell is provided with a protective cover matched with the groove, one end of the protective cover is rotatably connected to the lock shell, the other end of the protective cover is provided with a limiting hole matching with the lock tongue of the password lock, the lock shell is provided with a sliding groove for the sliding of the lock tongue of the password lock, the lock shell is provided with a limiting groove for the sliding of the connecting rod, a spring is provided in the sliding groove, one end of the spring is fixedly connected to the lock shell, the other end of the spring is fixedly connected to the lock tongue of the password lock, one end of the lock tongue of the password lock extends out from the lock shell and is provided with a slope, and a torsion spring is provided at the rotating connection between the protective cover and the lock shell.
[0005] Furthermore, the control processor is built into the lock housing.
[0006] Furthermore, the rack is slidably connected to the lock housing.
[0007] The advantages of the utility model compared with the prior art are: the utility model adopts a two-layer locking form, the first layer is opened by entering a password to expose the keyhole, and then the door lock can be opened by a mechanical key, the anti-theft performance is good, the safety is high, and it is intelligent and easy to operate. At the same time, it can also avoid the inconvenience caused by the keyhole being blocked by others and the economic loss caused by replacing the door lock. The structure is reasonable, it can be manufactured, and it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 The utility model is a structural schematic diagram of a double-layer door lock with hidden keyhole.
[0009] Figure 2 The utility model is a partial structural schematic diagram of a double-layer door lock with hidden keyhole.
[0010] As shown in the figure:
[0011] 1. Lock housing, 2. Mechanical door lock, 3. Display touch screen, 4. Motor, 5. Gear, 6. Rack, 7. Connecting rod, 8. Password lock tongue, 8.1. Slope, 9. Groove, 10. Lock hole, 11. Protective cover, 12. Limit hole, 13. Spring, 14. Camera. DETAILED DESCRIPTION
[0012] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0013] Embodiment 1, in combination with Figure 1-2A double-layer door lock with hidden keyhole, comprising a lock shell 1, a mechanical door lock 2 and a password lock arranged on the lock shell 1; the password lock comprises a display touch screen 3, a control processor electrically connected to the display touch screen 3, a motor 4 electrically connected to the control processor, a gear 5 arranged on the rotating shaft of the motor 4, a rack 6 meshing with the gear 5, a connecting rod 7 fixedly connected to one end of the rack 6, and a password lock tongue 8 fixedly connected to one end of the connecting rod 7; the lock shell 1 is provided with a groove 9, a lock hole 10 of the mechanical door lock 2 is arranged in the groove 9, and the lock shell 1 is provided with a matching groove 9 A protective cover 11, one end of which is rotatably connected to the lock shell 1, the other end of which is provided with a limiting hole 12 that matches the combination lock tongue 8, the lock shell 1 is provided with a slide groove for the sliding of the combination lock tongue 8, the lock shell 1 is provided with a limiting groove for the sliding of the connecting rod 7, a spring 13 is provided in the slide groove, one end of the spring 13 is fixedly connected to the lock shell 1, the other end of the spring 13 is fixedly connected to the combination lock tongue 8, one end of the combination lock tongue 8 extends from the lock shell 1 and is provided with a slope 8.1, and a torsion spring is provided at the rotation connection between the protective cover 11 and the lock shell 1.
[0014] When in use, first lock the door through the mechanical door lock 2, and then close the protective cover 11. After the protective cover 11 contacts the slope 8.1 of the password lock tongue 8, it will push the password lock tongue 8 into the slide groove, and the spring 13 is compressed. When the protective cover 11 is completely closed, the limiting hole 12 of the protective cover 11 is aligned with the password lock tongue 8. At this time, the password lock tongue 8 extends out under the elastic force of the spring 13, thereby inserting into the limiting hole 12, so that the protective cover 11 cannot be opened. When it is necessary to unlock, first enter the password through the display touch screen 3. After the password is entered correctly, the control processor drives the motor 4 to work and rotate, the motor 4 drives the gear 5 to rotate, and the gear 5 drives the rack 6 to move, thereby driving the password lock tongue 8 to slide into the slide groove, so that the password lock tongue 8 disengages from the groove 9. The protective cover 11 automatically rotates and opens under the action of the torsion spring, the motor 4 stops working, and the password lock tongue 8 extends out under the elastic force of the spring 13, waiting for the next action, at this time, the mechanical key can be inserted into the lock hole 10 to open the door lock.
[0015] In this embodiment, the control processor is built into the lock housing 1, which has a compact structure and is not easily damaged.
[0016] In the present embodiment, the mechanical door lock 2 adopts a pop-up opening structure, but is not limited thereto, and may also adopt other forms, such as a rotation opening structure or a pull opening structure.
[0017] In this embodiment, the rack 6 is slidably connected to the lock housing 1 .
[0018] In this embodiment, when the protective cover 11 is closed, its surface is flush with the surface of the lock housing 1, so that the protective cover 11 is not easily opened by force, and the overall aesthetics is also good.
[0019] In particular, the first layer lock of the present application adopts the form of an electronic password lock, but it is not actually limited to this. For example, the camera 14 can be used to use face recognition to intelligently open the first layer lock, or a mechanical password lock can be used as a replacement for the first layer lock, all of which fall within the protection scope of the present application.
[0020] In particular, the application scope of the technical solution of the present application is not limited to door locks. For example, the specific structural shape can be designed according to actual needs, so that it can be applied to safes, car door locks, etc., and has a wide range of applications.
[0021] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0023] In the description of the embodiments of the present invention, "multiple" means at least 2.
[0024] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A double-layer door lock with hidden keyhole, characterized by: It comprises a lock housing (1), a mechanical door lock (2) and a password lock arranged on the lock housing (1); The combination lock comprises a display touch screen (3), a control processor electrically connected to the display touch screen (3), a motor (4) electrically connected to the control processor, a gear (5) arranged on a rotating shaft of the motor (4), a rack (6) meshing with the gear (5), a connecting rod (7) fixedly connected to one end of the rack (6), and a combination lock tongue (8) fixedly connected to one end of the connecting rod (7); The lock housing (1) is provided with a groove (9), the lock hole (10) of the mechanical door lock (2) is arranged in the groove (9), the lock housing (1) is provided with a protective cover (11) matched with the groove (9), one end of the protective cover (11) is rotatably connected with the lock housing (1), the other end of the protective cover (11) is provided with a limiting hole (12) matched with the combination lock tongue (8), the lock housing (1) is provided with a slide groove for the combination lock tongue (8) to slide, the lock housing (1) is provided with a limiting groove for the connecting rod (7) to slide, a spring (13) is arranged in the slide groove, one end of the spring (13) is fixedly connected with the lock housing (1), the other end of the spring (13) is fixedly connected with the combination lock tongue (8), one end of the combination lock tongue (8) extends from the lock housing (1) and is provided with a slope (8.1), and a torsion spring is arranged at the rotation connection between the protective cover (11) and the lock housing (1).
2. A double-layer door lock with hidden keyhole according to claim 1, characterized in that: The control processor is built into the lock housing (1).
3. A double-layer door lock with hidden keyhole according to claim 1, characterized in that: The mechanical door lock (2) adopts a pop-up opening structure, a rotation opening structure, or a pull-opening structure.
4. The double-layer door lock with hidden keyhole according to claim 1, characterized in that: The rack (6) is slidably connected to the lock housing (1).
5. The double-layer door lock with hidden keyhole according to claim 1, characterized in that: When the protective cover (11) is closed, its surface is flush with the surface of the lock housing (1).