Automatic door lock protection device
By designing an automatic door lock protection device, and using a motor and guide bearing structure to enable the opening and closing of the top cover, combined with a light-transmitting cover and a human body detection module, the problems of easy damage and unsightly appearance of the password door lock are solved, thus improving security and ease of use.
Patent Information
- Application Number
- CN202520013850.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Combination locks are easily damaged, unsightly, and inconvenient to use, especially when exposed, they are prone to accidental activation and damage from external forces.
An automatic door lock protection device was designed, comprising a load-bearing component and a top cover. The top cover can be opened and closed using a motor, gears, and guide bearings. Combined with a light-transmitting cover and a human body detection module, the device ensures the concealment and security of the door lock, and allows the device status to be observed through the light-transmitting plate.
It improves the aesthetics and security of the door lock, prevents accidental activation and external damage, facilitates daily inspections, and extends the lifespan of the device.
Smart Images

Figure CN223838822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door lock technology, specifically to an automatic door lock protection device. Background Technology
[0002] Password locks are a key component of modern smart homes, providing a convenient and secure access control solution for homes and offices;
[0003] If a combination lock is directly exposed to the outside, it is easy for the lock to be damaged or accidentally touched by others. In addition, the lock and the handle may be asymmetrical, making it unsightly and inconvenient to use. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, this utility model provides an automatic door lock protection device.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic door lock protection device, comprising a support component and a top cover. The support component includes a base, a motor body, and a gear. A door lock cavity is provided at one end of the base, and an installation cavity is provided at the other end of the base. A battery slot is provided below the end of the installation cavity near the door lock cavity. A wiring harness slot is provided on the top wall of the installation cavity away from the door lock cavity. A motor groove is also provided between the wiring harness slot and the battery slot. The motor groove, wiring harness slot, and battery slot are in communication with the installation cavity. The motor body is embedded in the motor groove. The output end of the motor body is connected to the center of the gear. A rack is also provided below the top cover. The rack meshes with the gear. A pressure plate is provided on the top wall of the installation cavity. A through hole adapted to the rack is provided on the pressure plate. Guide bearings are rotatably provided at the four corners of the pressure plate. Guide rails connected to the guide bearings are symmetrically provided on the left and right sides below the top cover.
[0008] To facilitate observation of the equipment inside the door lock cavity, this utility model is improved by symmetrically arranging the light-transmitting cover on the upper and lower sides of the base, and embedding a light-transmitting plate for observing the door lock cavity on the light-transmitting cover.
[0009] In order to detect the approach of people and move the top cover, the present invention is improved by embedding a human body detection module in the mounting cavity on the light-transmitting cover located below.
[0010] Preferably, the upper cover is also provided with baffles on the left and right sides.
[0011] To facilitate stable battery mounting, this invention features a C-shaped battery slot with its opening located at the end furthest from the door lock cavity.
[0012] Preferably, the mounting cavity is also provided with a main control system circuit board connected to the human body detection module and the motor body.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides an automatic door lock protection device, which has the following features:
[0015] Beneficial effects:
[0016] This automatic door lock protection device, combining the load-bearing components and the top cover, overcomes the problems of traditional combination door locks being easily damaged and unsightly. Through the openable and closable top cover structure, the door lock is concealed, preventing accidental activation and external damage. It can also use guide rails and guide bearings to ensure precise opening and closing, improving the overall aesthetics and security of the door lock.
[0017] The light-transmitting cover and light-transmitting plate allow you to check the operating status of the equipment inside the door lock cavity at any time without opening the device. This facilitates daily inspections and fault prediction, reduces unnecessary disassembly, and extends the life of the device.
[0018] The stable movement of the top cover is achieved through the cooperation of the human body detection module, the motor body, and the main control system circuit board. Attached Figure Description
[0019] Figure 1 This is an exploded view of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the upper cover of the present utility model;
[0021] Figure 3 The structure of this utility model Figure 2 Enlarged view of a portion of the image;
[0022] Figure 4 This is a schematic diagram of the structural guide bearing of this utility model.
[0023] In the diagram: 1. Top cover; 2. Base; 3. Motor body; 4. Gear; 5. Mounting cavity; 6. Wiring harness groove; 7. Battery slot; 8. Motor groove; 9. Rack; 10. Pressure plate; 11. Guide bearing; 12. Guide rail; 13. Light-transmitting cover; 14. Light-transmitting plate; 15. Human body detection module; 16. Stop bar; 17. Door lock cavity; 18. Main control system circuit board. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4 An automatic door lock protection device includes a support component and a top cover 1. The support component includes a base 2, a motor body 3, and a gear 4. A door lock cavity 17 is provided at one end of the base 2, and a mounting cavity 5 is provided at the other end of the base 2. A battery slot 7 is provided below the end of the mounting cavity 5 near the door lock cavity 17, and a wiring harness slot 6 is provided on the top wall of the end of the mounting cavity 5 away from the door lock cavity 17. A motor groove 8 is also provided between the wiring harness slot 6 and the battery slot 7. The motor groove 8, the wiring harness slot 6, and the battery slot are... 7 is connected to the mounting cavity 5. The motor body 3 is embedded in the motor groove 8. The output end of the motor body 3 is connected to the center of the gear 4. A rack 9 is also provided below the upper cover 1. The rack 9 meshes with the gear 4. A pressure plate 10 is provided on the top wall of the mounting cavity 5. The pressure plate 10 is provided with through holes that are adapted to the rack 9. Guide bearings 11 are rotatably provided at the four corners of the pressure plate 10. Guide rails 12 connected to the guide bearings 11 are symmetrically provided on the left and right sides below the upper cover 1.
[0026] The motor body 3 is installed in the motor groove 8 of the base 2. When the top cover 1 needs to be opened or closed, the motor body 3 starts, and its output end drives the gear 4 connected to it to rotate. Since the rack 9 under the top cover 1 meshes with the gear 4, according to the transmission principle of the rack 9 and gear 4, the rack 9 will move linearly when the gear 4 rotates. In this process, the guide rails 12 symmetrically arranged on the left and right sides under the top cover 1 and the guide bearings 11 at the four corners of the pressure plate 10 on the top wall of the mounting cavity 5 play a key guiding role. The guide rails 12 roll along the guide bearings 11, which on the one hand restricts the movement trajectory of the top cover 1, allowing it to move smoothly in the vertical direction, avoiding shaking and deviation, and ensuring that the top cover 1 can open and close accurately every time; on the other hand, it disperses the friction force during the opening and closing process of the top cover 1, making the movement smoother and reducing the wear of parts. When the top cover 1 is lowered and closed, it can cover the door lock inside, preventing accidental touch, collision and damage from the outside, and improving the security of the door lock; when opened, it does not affect the normal use of the password door lock.
[0027] The baffles 16 on the left and right sides of the top cover 1 further enhance protection. When an external force impacts from the side, the baffles 16 can withstand the impact force first, avoiding direct impact on transmission components such as rack 9 and gear 4, preventing damage to the transmission structure, maintaining stable operation of the device, and extending its service life.
[0028] In this embodiment, the light-transmitting cover 13 is symmetrically arranged on the upper and lower sides of the base 2. A light-transmitting plate 14 for observing the door lock cavity 17 is embedded in the light-transmitting cover 13. Since the light-transmitting plate 14 has good light transmittance, light can pass through it. The user does not need to disassemble the entire device. As long as he / she bends down or squats down, he / she can directly observe the appearance of the combination lock inside the door lock cavity 17 through the light-transmitting plate 14, such as whether there is dust accumulation or whether the parts are loose, so as to discover potential problems in time.
[0029] In this embodiment, a human body detection module 15 for sensing the approach of a person is also embedded in the light-transmitting cover 13 located below, and a main control system circuit board 18 is also added inside the base. With the help of the human body detection module 15, and in conjunction with the main control system circuit board 18, commands are issued to the motor body 3. When a person's hand sweeps under the human body detection module 15, the main control system circuit board 18 can sense the human body and then control the motor body 3 to drive the upper cover 1 to slide. When the human body detection module 15 does not sense a human body, the motor body 3 starts after a delay and drives the upper cover 1 to reset.
[0030] In this embodiment, the battery slot 7 is C-shaped, and the opening of the battery slot 7 is located at the end away from the door lock cavity 17, which generally stably holds the battery in place and prevents the battery from coming loose.
[0031] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0032] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0033] 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.
Claims
1. An automatic door lock protection device, comprising a support component and a top cover (1), characterized in that: The supporting component includes a base (2), a motor body (3), and a gear (4). A door lock cavity (17) is provided at one end of the base (2), and an installation cavity (5) is provided at the other end of the base (2). A battery slot (7) is provided below the end of the installation cavity (5) near the door lock cavity (17). A wire harness slot (6) is provided on the top wall of the end of the installation cavity (5) away from the door lock cavity (17). A motor groove (8) is also provided between the wire harness slot (6) and the battery slot (7). The motor groove (8), the wire harness slot (6), and the battery slot (7) are connected to the installation cavity (5). The motor body (3) is embedded in the motor groove (8), the output end of the motor body (3) is connected to the center of the gear (4), a rack (9) is also provided below the upper cover (1), the rack (9) meshes with the gear (4), a pressure plate (10) is provided on the top wall of the mounting cavity (5), the pressure plate (10) is provided with a through hole that matches the rack (9), and guide bearings (11) are rotatably provided at the four corners of the pressure plate (10). Guide rails (12) connected to the guide bearings (11) are symmetrically provided on the left and right sides below the upper cover (1).
2. The automatic door lock protection device according to claim 1, characterized in that: The base (2) is symmetrically provided with light-transmitting covers (13) on the upper and lower sides, and a light-transmitting plate (14) for observing the door lock cavity (17) is embedded in the light-transmitting cover (13).
3. The automatic door lock protection device according to claim 2, characterized in that: The light-transparent cover (13) located below also has a human body detection module (15) embedded in the mounting cavity.
4. The automatic door lock protection device according to claim 3, characterized in that: The top cover (1) is also provided with baffles (16) on the left and right sides.
5. The automatic door lock protection device according to claim 4, characterized in that: The battery compartment (7) is C-shaped, and the opening of the battery compartment (7) is located at the end away from the door lock cavity (17).
6. The automatic door lock protection device according to claim 5, characterized in that: The mounting cavity (5) is also equipped with a main control system circuit board (18) that is connected to the human body detection module (15) and the motor body (3).