Intelligent door lock with protection structure

Abstract

The application discloses a smart door lock with a protection structure and belongs to the technical field of smart door locks. The smart door lock comprises a door lock body, an infrared sensor, a shooting mechanism and a protection support frame. An electric socket and a guide sliding groove are arranged at the rear of the protection support frame and at the door lock body. The protection support frame comprises a protection plate. A guide sliding block is fixedly arranged at the rear end of the protection plate and is in sliding connection with the guide sliding groove. A cavity is formed in the lower end of the protection plate. A support plate is rotatably connected in the cavity. A torsional spring is connected between the support plate and the side wall of the cavity. The application has the beneficial effect that in a humid season, the generation of water mist can be reduced by rotating the arranged water-repellent film, water mist is condensed into water droplets which are easy to remove and fall, the condensation of water droplets on the image acquisition head is avoided, and the support plate arranged in an inclined manner stably supports the power supply equipment to perform charging work, and it is not necessary to support the power supply equipment in real time.

Description

Technical Field

[0001] This application relates to the field of smart door lock technology, and more specifically, to a smart door lock with a protective structure. Background Technology

[0002] Smart locks are improvements on traditional mechanical locks, using multiple methods such as fingerprints, passwords, and Bluetooth to unlock them, while still maintaining the traditional mechanical lock mechanism.

[0003] Existing smart door locks still have the following problems when in use: 1) Water mist on the camera surface interferes with optical imaging. During the humid season, when the outside humidity is close to saturation, water mist easily condenses on the glass surface of the door lock camera, resulting in blurry, distorted, or reflective facial images, making it impossible to extract effective feature points; 2) When the battery inside the door lock is depleted, it needs to be recharged urgently. During the charging process, it needs to be kept in place for a period of time, during which time a person needs to hold the charging device to prevent it from falling.

[0004] Therefore, a smart door lock with a protective structure is needed to solve the above problems. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a smart door lock with a protective structure, comprising: a door lock body, wherein the door lock body is provided with a touch numeric keypad, a fingerprint recognition device, and a handle; an infrared sensor and a shooting mechanism are provided at the upper end of the door lock body; a protective support frame is provided at the lower end of the door lock body; the infrared sensor, the shooting mechanism, the touch numeric keypad, and the fingerprint recognition device are all connected to an internal power supply and used to control the opening and closing of the door lock; a guide groove is provided on the door lock body; the protective support frame is slidably connected to the guide groove; an electrical socket is provided on the door lock body; the electrical socket is located and shielded at the rear of the protective support frame; the infrared sensor is used to identify whether a person is approaching the door lock body; and the shooting mechanism is used to capture and identify the face of the approaching person.

[0007] Furthermore, the protective support frame includes a protective plate disposed at the lower end of the door lock body. A guide slider is fixedly provided on the rear end face of the protective plate. The guide slider is T-shaped and inserted into the guide groove, and slides in cooperation with the side wall of the guide groove. The lower end of the protective plate has two symmetrical openings, and a support plate is rotatably connected to each of the two openings. An anti-slip pad is fixedly provided on the rear end face of the support plate. The support plate includes a long plate at the upper end and a short plate at the lower end. The short plate can abut against and fit against the front end face of the door lock body. An upwardly extending protrusion is fixedly provided on the lower side wall of the opening. The protrusion is used to support the long plate so that the long plate is tilted forward and upward. A torsion spring is inserted and connected between the side end of the support plate and the door lock body. The torsion spring is used to control the support plate to flip downward. The length of the short plate is greater than the width of the protective plate in the front-rear direction.

[0008] Furthermore, the imaging mechanism includes an image acquisition head fixed within the door lock body. A mounting bracket is fixed to the front end of the door lock body on both the upper and lower sides of the image acquisition head. A hydrophobic membrane circumferentially covers the image acquisition head. Slots are provided at the adjacent ends of the two mounting brackets. The hydrophobic membrane extends vertically and is inserted into the mounting brackets. A frame-shaped sealing strip is installed at the mounting brackets to fit the hydrophobic membrane. A plastic scraper is fixed at the adjacent ends of the two mounting brackets. The end face of the plastic scraper is abutted against the end face of the hydrophobic membrane to assist in water removal. Evenly distributed drainage grooves are provided at the lower slot. Two symmetrically positioned electric rotating rods abut against the hydrophobic membrane. One of the electric rotating rods is connected to a micro motor fixed within the door lock body. The micro motor is identical to the image acquisition head and electrically connected to the infrared sensor portion.

[0009] The beneficial effects of this application are as follows:

[0010] 1. The protective support frame covers and protects the internal electrical socket, providing protection in humid weather. In emergency charging, the protective support frame slides downward to detach the support plate from the cavity, allowing the power supply equipment to be stably supported by the inclined support plate under the support of the support block, eliminating the need for constant human support of the power supply equipment.

[0011] 2. The image acquisition head within the shooting mechanism is protected by a hydrophobic membrane that isolates it from the external environment. This prevents water mist or droplets from interfering with the shooting effect. The membrane's hydrophobicity and the use of a plastic scraper to remove water during its movement further enhance the protection. This approach ensures both the image acquisition head's shooting performance and its safety, allowing it to remain usable even in humid southern regions. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0014] In the attached diagram:

[0015] Figure 1 This is an overall schematic diagram of an embodiment of a smart door lock with a protective structure according to this application;

[0016] Figure 2 yes Figure 1 A frontal view diagram in the embodiment;

[0017] Figure 3 This is an overall schematic diagram of an embodiment of a smart door lock with a protective structure according to this application;

[0018] Figure 4 yes Figure 3 A schematic diagram of the exterior of the door lock body in the embodiment;

[0019] Figure 5 yes Figure 3 A schematic diagram of the protective support frame in the embodiment;

[0020] Figure 6 yes Figure 5 A schematic diagram of the support plate in the embodiment;

[0021] Figure 7 yes Figure 5 A side cross-sectional view of the lower part of the protective plate in the embodiment;

[0022] Figure 8 yes Figure 1 A schematic diagram of the infrared sensor in the embodiment;

[0023] Figure 9 yes Figure 1 A magnified view of a portion of the sample after the hydrophobic film has been removed.

[0024] Figure label:

[0025] 10. Door lock body; 11. Infrared sensor; 12. Imaging mechanism; 13. Protective support frame; 14. Electrical socket; 15. Guide rail; 20. Protective plate; 21. Guide slider; 22. Cavity; 23. Support plate; 24. Anti-slip pad; 25. Torsion spring; 26. Long plate; 27. Short plate; 28. Support block; 30. Image acquisition head; 31. Electric rotating rod; 32. Hydrophobic membrane; 33. Sealing strip; 34. Plastic scraper; 35. Fixing frame; 36. Slot; 37. Drainage groove. Detailed Implementation

[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figure 1-3A smart door lock with a protective structure includes: a door lock body 10, on which a touch-sensitive numeric keypad, a fingerprint recognition device, and a handle are provided; an infrared sensor 11 and a shooting mechanism 12 are provided at the upper end of the door lock body 10; and a protective support frame 13 is provided at the lower end of the door lock body 10. The infrared sensor 11, the shooting mechanism 12, the touch-sensitive numeric keypad, and the fingerprint recognition device are all connected to an internal power supply and are used to control the opening and closing of the door lock. A guide groove 15 is provided on the door lock body 10, and the protective support frame 13 is slidably connected to the guide groove 15. An electrical socket 14 is provided on the door lock body 10, and the electrical socket 14 is located and shielded at the rear of the protective support frame 13. The infrared sensor 11 is used for... To identify whether a person is approaching the door lock body 10, the shooting mechanism 12 is used to capture the face of the approaching person for identification. The infrared sensor 11 detects whether a person is approaching, and the shooting mechanism 12 captures the face of the approaching person, thereby identifying the person through the control terminal (control chip). The door lock can then be opened by controlling the shooting mechanism 12, by entering the correct password on the touch numeric keypad, or by pressing a fingerprint on the fingerprint recognition device. When the battery power inside the door lock body 10 is low, the protective support frame 13 is lowered to expose the power socket 14 to the external environment, so that the power socket 14 can be connected to a power supply device (power bank) for emergency charging.

[0032] Reference Figure 3-7 The protective support frame 13 includes a protective plate 20 disposed at the lower end of the door lock body 10. A guide slider 21 is fixedly disposed on the rear end face of the protective plate 20. The guide slider 21 is T-shaped and inserted into the guide groove 15 and slides with the side wall of the guide groove 15. The lower end of the protective plate 20 has two symmetrical openings 22. A support plate 23 is rotatably connected to each of the two openings 22. An anti-slip pad 24 is fixedly disposed on the rear end face of the support plate 23. The support plate 23 includes a long plate 26 at the upper end and a short plate 27 at the lower end. The short plate 27 can engage with the front end of the door lock body 10. The surfaces are in close contact. An upwardly extending protrusion is fixed on the lower side wall of the cavity 22. An upwardly protruding support block 28 is fixed on the lower side wall of the cavity 22. The protrusion is used to support the long plate 26 so that the long plate 26 is partially forward and tilted upward. A torsion spring 25 is inserted and connected between the side end of the support plate 23 and the door lock body 10. The torsion spring 25 is used to control the support plate 23 to flip downward. The length of the short plate 27 is greater than the width of the protective plate 20 in the front-back direction. By contacting the protective support frame 13, the protective support frame 13 can be pushed downward, so that the two anti-slip pads 24 automatically pop out to support the power supply equipment.

[0033] Reference Figure 1 and Figure 8-9The imaging mechanism 12 includes an image acquisition head 30 fixed inside the door lock body 10. A mounting bracket 35 is fixed to the front end of the door lock body 10, located on the upper and lower sides of the image acquisition head 30. A hydrophobic membrane 32 is circumferentially covering the image acquisition head 30. Slots 36 are provided at the adjacent ends of the two mounting brackets 35. The hydrophobic membrane 32 extends vertically and is inserted into the mounting brackets 35. A frame-shaped sealing strip 33 is installed at the mounting brackets 35 to fit the hydrophobic membrane 32. A plastic scraper 34 is fixed at the adjacent ends of the two mounting brackets 35. The end face of 4 is attached to the end face of the hydrophobic membrane 32 to assist in water removal. The plastic scraper 34 can abut against the outer end face of the hydrophobic membrane 32. The slot 36 located on the lower side is provided with evenly distributed drainage grooves 37. There are two left and right symmetrical electric rotating rods 31 abutting inside the hydrophobic membrane 32. One of the electric rotating rods 31 is connected to a micro motor fixed in the door lock body 10. The micro motor is consistent with the image acquisition head 30 and is electrically connected to the infrared sensor 11. By moving the rotatable hydrophobic membrane 32, the water droplets on the surface of the hydrophobic membrane 32 are cleaned under the action of the plastic scraper 34.

[0034] Working process or usage method:

[0035] 1. The infrared sensor 11 detects whether a person is approaching. When the infrared sensor 11 detects a person approaching, the shooting mechanism 12 is controlled to start shooting through the electrical connection between the infrared sensor 11 and the shooting mechanism 12 (the signal processor processes the signal input from the infrared sensor 11 and transmits the output signal of the signal processor to the image acquisition head 30 to control the image acquisition head 30 to start working). The shooting mechanism 12 captures the face of the approaching person, and then the recognition is performed through the control terminal (control chip). The door lock can then be opened by the shooting mechanism 12, by entering the correct password on the touch numeric keypad, or by pressing the fingerprint on the fingerprint recognition device. When the battery power inside the door lock body 10 is insufficient, the protective support frame 13 is lowered to expose the power socket 14 to the external environment, so that the power socket 14 is connected to the power supply device (power bank) for emergency charging.

[0036] 2. The charging process may take some time. Before that, by pushing the protective support frame 13 downward, the protective support frame 13 moves under the sliding cooperation of the protective plate 20 and the guide groove 15. During the downward movement of the protective support frame 13, the support plate 23, which is rotatably set in the opening 22, moves downward synchronously through the torsion spring 25. This causes the short plate 27 of the support plate 23 to lose contact with the door lock body 10. Then, under the torque of the torsion spring 25, the long plate 26 is controlled to rotate downward. The lower end of the paper long plate 26 stops after contacting the support block 28. At this time, if Figure 7As shown, the support plate 23 is in an upward tilted state. At this time, the user can place the charging device on the two support plates 23. The anti-slip pad 24 increases the friction to prevent slipping, and the tilt of the support plate 23 itself increases the stability of the charging device placed on the support plate 23. It forms a triangular support with the protective support frame 13 to provide power.

[0037] 3. After completion, disconnect from the charging device. The user pushes the protective support frame 13 upwards, so that the support plate 23 overcomes the torque of the torsion spring 25 and is retracted into the cavity 22 under the contact between the lower end of the door lock body 10 and the short plate 27. During this process, the sealing gasket on the back of the protective support frame 13 is in contact with the end face of the door lock body 10 for isolation and protection, preventing external moisture from entering the electrical socket 14. During the process, the short plate 27 will remain in close contact with the end face of the door lock body 10 under the torque of the torsion spring 25, thereby preventing the protective support frame 13 from sliding down naturally.

[0038] 4. During the operation of the shooting mechanism 12, the humid air will come into direct contact with the hydrophobic membrane 32 instead of the image acquisition head 30. Thus, the hydrophobic membrane 32 protects the image acquisition head 30. Due to the hydrophobic properties of the hydrophobic membrane 32 itself, the humid air from the outside will condense on the surface of the hydrophobic membrane 32 and gradually merge into water droplets that slide off. The residual water droplets are removed by the plastic scraper 34.

[0039] 5. The principle of infrared sensor 11 controlling image acquisition head 30 is the same as the principle of infrared sensor 11 controlling electric rotating rod 31. When infrared sensor 11 detects a person approaching, it controls the micro motor at electric rotating rod 31 to work and control electric rotating rod 31 to rotate. Thus, under the contact between electric rotating rod 31 and hydrophobic membrane 32, the hydrophobic membrane 32 is driven to rotate. The rotating hydrophobic membrane 32 moves the back part originally located inside the door lock body 10 to the front part for use. During the transfer of hydrophobic membrane 32, plastic scraper 34 will scrape off the water droplets remaining on the surface of hydrophobic membrane 32 and seal it with sealing strip 33 to prevent the increase of moisture inside the shooting mechanism 12.

[0040] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A smart door lock with a protective structure, characterized in that, include: Door lock body (10); The upper end of the door lock body (10) is provided with an infrared sensor (11) and a shooting mechanism (12), and the lower end of the door lock body (10) is provided with a sliding protective support frame (13). Behind the protective support frame (13) are an electrical socket (14) and a guide groove (15) located at the door lock body (10). The protective support frame (13) includes a protective plate (20). A guide slider (21) is fixedly provided at the rear end of the protective plate (20) and slidably connected to the guide groove (15). An opening (22) is provided at the lower end of the protective plate (20). A support plate (23) is rotatably connected in the opening (22). A torsion spring (25) is connected between the support plate (23) and the side wall of the opening (22).

2. The smart door lock with a protective structure according to claim 1, characterized in that: The shooting mechanism (12) includes an image acquisition head (30), and a hydrophobic membrane (32) is provided around the image acquisition head (30). Two electric rotating rods (31) are provided at the inner end of the hydrophobic membrane (32), and the electric rotating rods (31) are rotatably connected inside the door lock body (10).

3. The smart door lock with a protective structure according to claim 2, characterized in that: The shooting mechanism (12) also includes two fixing brackets (35) fixed on the door lock body (10). The two fixing brackets (35) are located on the upper and lower sides of the image acquisition head (30), respectively. Slots (36) are opened at the close ends of the two fixing brackets (35). The hydrophobic membrane (32) extends vertically and is inserted between the two slots (36). A drainage groove (37) is opened at the lower slot (36).

4. The smart door lock with a protective structure according to claim 1, characterized in that: The upper end of the support plate (23) is fixed with an anti-slip pad (24), and the lower side wall of the cavity (22) is fixed with an upward protruding support block (28). The support block (28) can abut against the support plate (23) for support. The support plate (23) is set in an inclined position.

5. A smart door lock with a protective structure according to claim 1, characterized in that: The support plate (23) includes a long plate (26) at the upper end and a short plate (27) at the lower end, the length of which is greater than the width of the protective plate (20) in the front-back direction.

6. A smart door lock with a protective structure according to claim 3, characterized in that: A sealing strip (33) is installed at the front end of the hydrophobic membrane (32). The sealing strip (33) is frame-shaped and installed between the two slots (36). A plastic scraper (34) is fixed at the front end of the door lock body (10). The plastic scraper (34) can abut against and fit against the outer end face of the hydrophobic membrane (32).

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