Intelligent door lock with fingerprint clue erasing function

Abstract

The utility model relates to an intelligent door lock, in particular to an intelligent door lock capable of erasing fingerprint clues, which comprises an intelligent door lock body, a password input area and a fingerprint identification area are arranged on the intelligent door lock body, and a protective cover used for covering the password input area and the fingerprint identification area is slidably connected onto the intelligent door lock body. A V-shaped notch is formed in one side wall of the protective cover, inclined sliding grooves are formed in the two sides, with the fingerprint recognition area as the center, of the intelligent door lock body, and third guide rods are arranged in the inclined sliding grooves. When the protective cover slides upwards, the protective cover drives the cleaning roller and the wiping roller to move upwards, so that clues on password keys on the password input area are erased, the fingerprint erasing roller moves towards a high point of an oblique sliding groove along a third guide rod through a connecting rod, and therefore fingerprint clues in the fingerprint recognition area are erased. Therefore, the use safety of the intelligent door lock and the privacy of a user are improved.

Description

Technical Field

[0001] The utility model relates to an intelligent door lock, in particular to an intelligent door lock with the function of erasing fingerprint clues. Background Technique

[0002] An intelligent door lock is a security device that combines modern information technology and the functions of traditional mechanical locks. By integrating technologies such as the Internet of Things, wireless communication, and biometric recognition, it realizes more convenient and secure access management for homes or office places. The unlocking methods of existing intelligent door locks mostly include unlocking by setting a digital password or using biometric technology to verify identity by recognizing the user's fingerprint.

[0003] When existing intelligent door locks are in use, users are prone to leaving their fingerprint clues or digital password clues on the intelligent door lock, thus giving criminals an opportunity and reducing the security of the intelligent door lock during use and the privacy of the users.

[0004] Based on this, it is necessary to design an intelligent door lock with the function of erasing fingerprint clues to improve the security performance of the intelligent door lock. Content of the Utility Model

[0005] The technical implementation scheme of the utility model is: an intelligent door lock with the function of erasing fingerprint clues, including an intelligent door lock body. A password input area and a fingerprint recognition area are arranged on the intelligent door lock body. A protective cover for covering the password input area and the fingerprint recognition area is slidably connected to the intelligent door lock body. A V-shaped notch is opened on one side wall of the protective cover. Oblique chutes are opened on both sides of the intelligent door lock body centered on the fingerprint recognition area. A third guide rod is arranged in the oblique chute. A connecting rod is slidably connected to the third guide rod. A fingerprint erasing roller for rolling and erasing fingerprints on the fingerprint recognition area is rotatably installed on the connecting rod. One end of the connecting rod extending outside the intelligent door lock body is in extrusion fit with the V-shaped notch on the protective cover. A third spring is arranged between the connecting rod and the groove wall of the oblique chute. The third spring is wound around the third guide rod. When the third spring is in its normal state, the connecting rod is located at the upper end of the oblique chute.

[0006] Optionally, a wiping roller for wiping the password buttons in the password input area is rotatably arranged inside the protective cover.

[0007] Optionally, rectangular grooves are opened on both side walls of the protective cover. The rectangular grooves are located below the wiping roller. A first guide rod is arranged in the rectangular groove. A cleaning roller is slidably connected to the first guide rod. The cleaning roller is used for secondary wiping of the password buttons in the password input area. A first spring is arranged between the cleaning roller and the groove wall of the rectangular groove. The first spring is wound around the first guide rod. When the first spring is in its normal state, the cleaning roller is located directly below the wiping roller.

[0008] Optionally, a second guiding rod is provided on the outer side wall of the protective cover. A clamping block is slidably connected to the second guiding rod. The clamping block is inserted and matched with a groove formed in the cleaning roller. When the clamping block is inserted into the groove of the cleaning roller, the cleaning roller is limited. A second spring is provided between the end of the second guiding rod and the clamping block. The second spring is wound around the second guiding rod. When the second spring is in its normal state, the clamping block is located at the lowest point of the second guiding rod.

[0009] Optionally, an extrusion plate is provided on the upper side wall of the intelligent door lock body. The inclined side of the extrusion plate is in extrusion fit with the cleaning roller.

[0010] Optionally, a top block is provided on the lower side wall of the intelligent door lock body. The top block pushes the clamping block out of the groove of the cleaning roller.

[0011] Compared with the prior art, the utility model has the following advantages: When the protective cover slides upward, the protective cover drives the cleaning roller and the wiping roller to move upward, thereby erasing the clues on the password buttons in the password input area. The fingerprint erasing roller moves along the third guiding rod to the high point of the inclined chute through the connecting rod, thereby erasing the fingerprint clues in the fingerprint recognition area, thus improving the security during the use of the intelligent door lock and the privacy of the user. Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 is a three-dimensional structural sectional view of the protective cover of the utility model.

[0014] Figure 3 is the utility model Figure 2 magnified view of part A.

[0015] Figure 4 is a three-dimensional structural sectional view of the intelligent door lock of the utility model.

[0016] Figure 5 is the utility model Figure 4 magnified view of part B.

[0017] Figure 6 is a three-dimensional structural sectional view of the protective cover of the utility model.

[0018] The meanings of the reference numerals in the drawings: 1: Intelligent door lock body, 101: Password input area, 102: Fingerprint recognition area, 3: Protective cover, 4: Cleaning roller, 401: Wiping roller, 402: First guiding rod, 403: First spring, 5: Fingerprint erasing roller, 501: Connecting rod, 502: Third spring, 503: Third guiding rod, 6: Clamping block, 601: Top block, 602: Second guiding rod, 603: Second spring, 7: Extrusion plate. Detailed Embodiment

[0019] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: An intelligent door lock with erased fingerprint clues, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, including an intelligent door lock body 1. A password input area 101 and a fingerprint recognition area 102 are provided on the intelligent door lock body 1. A protective cover 3 for covering the password input area 101 and the fingerprint recognition area 102 is slidably connected to the intelligent door lock body 1. The setting of the protective cover 3 provides dust protection for the password input area 101 and the fingerprint recognition area 102, and also provides anti-damage protection for the password input area 101 and the fingerprint recognition area 102. A V-shaped notch is opened on one side wall of the protective cover 3. Oblique chutes are opened on both sides of the intelligent door lock body 1 centered on the fingerprint recognition area 102. Among them, one oblique chute penetrates the intelligent door lock body 1. The oblique chute is inclined with the front end lower than the rear end. A third guide rod 503 is arranged in the oblique chute. A connecting rod 501 is slidably connected to the third guide rod 503. A fingerprint erasing roller 5 for rolling and erasing fingerprints on the fingerprint recognition area 102 is rotatably installed on the connecting rod 501. One end of the connecting rod 501 extending outside the intelligent door lock body 1 is in pressing fit with the V-shaped notch on the protective cover 3. When the protective cover 3 moves downward, the V-shaped notch on the protective cover 3 forms a downward pressing force on the connecting rod 501, and the connecting rod 501 then moves downward along the oblique chute, thereby driving the fingerprint erasing roller 5 to erase the fingerprints on the fingerprint recognition area 102. A third spring 502 is arranged between the connecting rod 501 and the groove wall of the oblique chute. The third spring 502 is wound around the third guide rod 503. When the third spring 502 is in a normal state, the connecting rod 501 is located at the upper end of the oblique chute.

[0021] Furthermore, as Figure 2 、 Figure 3 and Figure 6As shown in the figure, a wiping roller 401 for wiping the password buttons in the password input area 101 is rotatably arranged inside the protective cover 3. Rectangular grooves are formed on both side walls of the protective cover 3, and the rectangular grooves are located below the wiping roller 401. A first guide rod 402 is arranged in the rectangular grooves, and a cleaning roller 4 is slidably connected to the first guide rod 402. The cleaning roller 4 is used for secondary wiping of the password buttons in the password input area 101. A first spring 403 is arranged between the cleaning roller 4 and the groove wall of the rectangular groove. The first spring 403 is wound around the first guide rod 402. When the first spring 403 is in its normal state, the cleaning roller 4 is located directly below the wiping roller 401. When the protective cover 3 moves upward, the wiping roller 401 and the cleaning roller 4 move upward with the protective cover 3 and wipe the password buttons in the password input area 101 in sequence, so as to completely wipe off the clues on the password buttons in the password input area 101 when the protective cover 3 slides upward, thereby ensuring the safety when the intelligent door lock is used; in addition, the wiping roller 401 can be a wet wiping roller, and the cleaning roller 4 can be a dry cleaning roller. When opening the door, the wet wiping roller 401 wipes the password buttons in the password input area 101, and the cleaning roller 4 wipes off the water stains on the password buttons in the password input area 101, providing a clean and dry password button for the user and improving the user experience.

[0022] Further, as Figures 2 - 4 shown, a second guide rod 602 is arranged on the outer side wall of the protective cover 3, and a "7"-shaped block 6 is slidably connected to the second guide rod 602. The block 6 is inserted and matched with the groove formed in the cleaning roller 4. When the block 6 is inserted into the groove of the cleaning roller 4, the cleaning roller 4 is limited. A second spring 603 is arranged between the end of the second guide rod 602 and the block 6. The second spring 603 is wound around the second guide rod. When the second spring 603 is in its normal state, the block 6 is located at the lowest point of the second guide rod 602. The block 6 is kept inserted into the groove of the cleaning roller 4 by the second spring 603, so that the cleaning roller 4 is far away from the password buttons in the password input area 101. When the protective cover 3 moves downward, the cleaning roller 4 is far away from the password buttons in the password input area 101, thereby reducing the resistance of the protective cover 3 when it slides downward and enabling it to quickly move downward and reset.

[0023] As Figure 4 shown, an extrusion plate 7 is arranged on the upper side wall of the intelligent door lock body 1. The inclined side of the extrusion plate 7 is extrusion-fitted with the cleaning roller 4. Through the extrusion of the extrusion plate 7 on the cleaning roller 4, the cleaning roller 4 extrudes the top block 601, and the top block 601 is inserted into the groove of the cleaning roller 4 to limit the cleaning roller 4.

[0024] As Figure 2 and Figure 3As shown, a top block 601 is provided on the lower side wall of the intelligent door lock body 1, and the top block 601 ejects the clamping block 6 from the groove of the cleaning roller 4.

[0025] When it is necessary to unlock the door, slide the protective cover 3 upward along the intelligent door lock body 1. When the protective cover 3 moves upward, it drives the wiping roller 401 to move upward, thereby wiping the password buttons in the password input area 101, so as to erase the information recorded by the buttons; at the same time, the cleaning roller 4 moves upward with the protective cover 3, thereby cleaning the password buttons in the password input area 101 again; as the protective cover 3 moves upward, under the elastic force of the third spring 502, the connecting rod 501 moves upward along the third guide rod 503 to the upper part of the inclined chute, and the fingerprint erasing roller 5 erases the fingerprint information in the fingerprint recognition area 102, thereby erasing the fingerprint clues left when opening the door on the intelligent door lock; when the protective cover 3 slides up to the upper part of the intelligent door lock body 1, the cleaning roller 4 gradually approaches the pressing plate 7. Under the pressing action of the pressing plate 7, the cleaning roller 4 moves away from the intelligent door lock body 1 along the first guide rod 402 and presses the clamping block 6. The clamping block 6 moves upward along the second guide rod 602 and compresses the second spring 603. When the groove of the cleaning roller 4 is directly below the clamping block 6, under the elastic force of the second spring 603, the clamping block 6 moves downward and snaps into the groove of the cleaning roller 4, thereby limiting the cleaning roller 4. After unlocking, when the protective cover 3 moves downward, the cleaning roller 4 no longer wipes the password buttons in the password input area 101 of the intelligent door lock body 1; as the protective cover 3 moves downward, the "V"-shaped groove on the side wall of the protective cover 3 presses the connecting rod 501, and the connecting rod 501 moves downward along the third guide rod 503 to the lower part of the inclined chute and presses the third spring 502, thereby driving the fingerprint erasing roller 5 to erase the fingerprint information on the fingerprint recognition area 102. As the protective cover 3 moves downward, the clamping block 6 gradually approaches the top block 601 and contacts it. As the protective cover 3 continues to move downward, the top block 601 exerts an upward force on the clamping block 6, causing the clamping block 6 to move away from the groove of the cleaning roller 4. Under the elastic force of the first spring 403, the cleaning roller 4 moves back to the direction of the intelligent door lock body 1 to facilitate the next cleaning of the password buttons in the fingerprint recognition area 102; by sliding the protective cover 3 up and down, the unlocking clues in the password input area 101 and the fingerprint recognition area 102 are erased by the cleaning roller 4, the wiping roller 401, and the fingerprint erasing roller 5, so as to achieve the anti-theft effect.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart door lock capable of erasing fingerprint clues, comprising a smart door lock body (1), the smart door lock body (1) being provided with a password input area (101) and a fingerprint recognition area (102), a protective cover (3) for covering the password input area (101) and the fingerprint recognition area (102) being slidably connected to the smart door lock body (1), wherein: A V-shaped notch is provided on one side wall of the protective cover (3); oblique sliding grooves are provided on both sides of the intelligent door lock body (1) with the fingerprint identification area (102) as the center; a third guide rod (503) is provided in the oblique sliding groove; a connecting rod (501) is slidably connected to the third guide rod (503); a fingerprint erasing roller (5) for rolling and erasing the fingerprint on the fingerprint identification area (102) is rotatably installed on the connecting rod (501); one end of the connecting rod (501) extending outward from the intelligent door lock body (1) is pressed and matched with the V-shaped notch on the protective cover (3); a third spring (502) is provided between the connecting rod (501) and the groove wall of the oblique sliding groove; the third spring (502) is wound around the third guide rod (503); when the third spring (502) is normal, the connecting rod (501) is located at the upper end of the oblique sliding groove.

2. A smart door lock with fingerprint erasing function according to claim 1, characterized in that: A wiping roller (401) is rotatably arranged inside the protective cover (3) for wiping the password keys in the password input area (101).

3. A smart door lock with fingerprint erasing function according to claim 2, characterized in that: Rectangular grooves are provided on the two side walls of the protective cover (3), the rectangular grooves are located below the wiping roller (401), a first guide rod (402) is provided in the rectangular groove, a cleaning roller (4) is slidably connected to the first guide rod (402), the cleaning roller (4) is used to perform secondary wiping on the password keys of the password input area (101), a first spring (403) is provided between the cleaning roller (4) and the groove wall of the rectangular groove, the first spring (403) is wound around the first guide rod (402), and when the first spring (403) is in a normal state, the cleaning roller (4) is located directly below the wiping roller (401).

4. The smart door lock with fingerprint erasing function according to claim 3, characterized in that: A second guide rod (602) is arranged on the outer wall of the protective cover (3); a clamping block (6) is slidably connected to the second guide rod (602); the clamping block (6) is plugged into a groove formed on the cleaning roller (4); when the clamping block (6) is inserted into the groove of the cleaning roller (4), the cleaning roller (4) is limited; a second spring (603) is arranged between the end of the second guide rod (602) and the clamping block (6); the second spring (603) is wound around the second guide rod; when the second spring (603) is in a normal state, the clamping block (6) is located at the lowest point of the second guide rod (602).

5. The smart door lock with fingerprint erasing function according to claim 4, characterized in that: An extrusion plate (7) is provided on the upper side wall of the intelligent door lock body (1), and the inclined surface side of the extrusion plate (7) is extruded and matched with the cleaning roller (4).

6. The intelligent door lock with fingerprint erasing function according to claim 5, characterized in that: A top block (601) is provided on the lower side wall of the intelligent door lock body (1), and the top block (601) pushes the card block (6) out of the groove of the cleaning roller (4).

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