Intelligent door lock with concealed fingerprint identifier

By introducing a protective mechanism and a sliding mechanism for the concealed fingerprint reader into the smart door lock, the problem of decreased accuracy of the fingerprint reader in dusty, moist, and oily environments is solved, achieving higher recognition accuracy and device reliability.

CN224093143UActive Publication Date: 2026-04-07SHENZHEN SIHAITONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The fingerprint readers of existing smart door locks are exposed to dust, moisture and oil for a long time, which leads to a decrease in recognition accuracy and an increase in false recognition rate. In addition, they are prone to short circuits or sensor failure in humid environments.

Method used

A smart door lock with a concealed fingerprint reader was designed. By setting up a protective mechanism and a sliding mechanism, the fingerprint reader is protected from dust, moisture and oil, and automatically retracts after recognition to prevent moisture from seeping in.

Benefits of technology

It improves the recognition accuracy of fingerprint scanners, reduces the false recognition rate, enhances the practicality of the device, prevents short circuits and sensor failures, and improves the reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of intelligent door locks, and discloses an intelligent door lock with a concealed fingerprint identifier, a protection mechanism is arranged on the front side of an intelligent door lock body, a sliding mechanism is arranged at the bottom of the protection mechanism, and a fingerprint identifier body is arranged in the intelligent door lock body. According to the intelligent door lock with the hidden fingerprint identifier, the fingerprint identifier body can be exposed through the arranged protection mechanism, so that a user can further identify and operate conveniently, meanwhile, the purpose of blocking and protecting the fingerprint identifier body can be achieved, the situation that the fingerprint identifier body is exposed to environments such as dust, water vapor and oil dirt for a long time is reduced, and the safety of the user is improved. And the problems that the identification precision of the sensor is reduced and the false identification rate is increased due to the fact that stains (such as fingerprint residues and dust particles) are easily accumulated on the surface are reduced, the situation that in a humid environment, water vapor possibly permeates into the fingerprint identifier body to cause short circuit of a circuit or failure of the sensor is effectively solved, and the practicability of the device is enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of intelligent door lock especially, it is an intelligent door lock with hidden fingerprint identifier. BACKGROUND

[0002] Intelligent door lock is a kind of lock that utilizes electronic technology, mechanical technology and network technology, with intelligent, convenient, safe and other characteristics.Intelligent door lock can be classified according to different classification standards, for example, according to use scene can be divided into family intelligent door lock and commercial intelligent door lock;According to the unlocking mode, it can be divided into fingerprint identification door lock, password door lock, IC card door lock, etc.

[0003] With the development of science and technology, intelligent door lock is gradually widely used, and fingerprint identifier is usually arranged on intelligent door lock, but common fingerprint identifier is exposed, in long-term exposure to dust, water vapor, oil stain and other environments, surface is easy to accumulate stain (such as fingerprint residue, dust particle), cause sensor recognition accuracy to decline, false recognition rate to rise;In humid environment, water vapor can penetrate into the inside of fingerprint identifier body, cause circuit short circuit or sensor failure, reduce the practicability of device. SUMMARY

[0004] The utility model provides a kind of intelligent door lock with hidden fingerprint identifier

[0005] To solve the above problems, the utility model provides the following technical scheme: a kind of intelligent door lock with hidden fingerprint identifier, including intelligent door lock body, the front of the intelligent door lock body is provided with protection mechanism, the bottom of the protection mechanism is provided with sliding mechanism, the inside of the intelligent door lock body is provided with fingerprint identifier body;

[0006] The protection mechanism includes fixed box, the fixed box is fixedly connected to the front of intelligent door lock body, the inner wall of the fixed box is fixedly connected with spring, the bottom end of the spring is fixedly connected with rectangular plate, the bottom of the rectangular plate is fixedly connected with magnetic block one, the top of the rectangular plate is fixedly connected with connecting shaft, the outer wall of the connecting shaft is fixedly connected with push plate, the top of the sliding mechanism is provided with magnetic block two, the inner side of the sliding mechanism is provided with protection plate.

[0007] Preferably, the shape of the outer side of the rectangular plate matches the shape of the inner wall of the fixed box, and the rectangular plate is slidingly connected to the inner wall of the fixed box, so that the rectangular plate can stably move to compress the spring.

[0008] Preferably, a circular hole is formed in the top of the fixed box, and the connecting shaft penetrates through the circular hole and moves, so that the connecting shaft can move through the circular hole.

[0009] Preferably, the spring is fixedly connected to the top inner wall of the fixed box, and the spring sleeve is connected to the outer wall of the connecting shaft to support the spring.

[0010] Preferably, the sliding mechanism comprises a fixed groove one, the fixed groove one is fixedly connected to the front surface of the intelligent door lock body, the inner wall of the fixed groove one is slidably connected to the sliding block one, the front surface of the intelligent door lock body is fixedly connected with a fixed groove two, the inner wall of the fixed groove two is fixedly connected with a sliding block two, so that the protection plate can be stably limited in sliding.

[0011] Preferably, the sliding block two and the sliding block one are fixedly connected to the left side and the right side of the protection plate respectively, the bottom of the magnetic block one is in contact with the top of the magnetic block two, and the opposite poles of the two are in contact with each other, so that the magnetic block one and the magnetic block two can be better adsorbed.

[0012] Preferably, the top of the fixed groove one is provided with a through hole, the magnetic block one penetrates through the through hole, and the magnetic block two is fixedly connected to the top of the sliding block one, so that the magnetic block one can be adsorbed and limited by the magnetic block two through the through hole.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] 1、The intelligent door lock with the hidden fingerprint identifier, through the protection mechanism, the fingerprint identifier body can be exposed, so that the user can further identify and operate, the fingerprint identifier body can be protected, the problem that the surface is easy to accumulate stains (such as fingerprint residue, dust particles) is reduced, the identification accuracy of the sensor is reduced, the error recognition rate is increased, the situation that water vapor can penetrate into the inside of the fingerprint identifier body in a humid environment is effectively solved, the practicability of the device is enhanced.

[0015] 2、The intelligent door lock with the hidden fingerprint identifier, through the sliding mechanism, the protection plate can drive the sliding block two to slide and limit in the inner wall of the fixed groove two, the sliding block two also drives the magnetic block two to move in the direction of approaching the magnetic block one, when the protection plate completely covers the fingerprint identifier body, the magnetic block two and the magnetic block one will be in contact with each other, the purpose of adsorption is realized, the protection plate can be further limited and stored, and the stability of the protection plate in the protection process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a structural front view of the present application;

[0018] Figure 2 It is a structural left view of the present application;

[0019] Figure 3 It is a structural schematic diagram at the fingerprint recognizer;

[0020] Figure 4 It is a sectional view at the fixed box;

[0021] Figure 5 It is a structural schematic diagram at the protection plate.

[0022] In the figure: 1, intelligent door lock body; 2, protection mechanism; 21, fixed box; 22, spring; 23, rectangular plate; 24, connecting shaft; 25, push plate; 26, magnetic block one; 27, magnetic block two; 28, protection plate; 3, sliding mechanism; 31, fixed groove one; 32, sliding block one; 33, fixed groove two; 34, sliding block two; 4, fingerprint recognizer body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. It can be understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for clear description, and does not limit the connection mode.

[0024] The present application provides the following technical solutions:

[0025] Embodiment one

[0026] In combination with Figures 1 to 5 An intelligent door lock with a concealed fingerprint recognizer, comprising an intelligent door lock body 1, the intelligent door lock body 1 is provided with a protection mechanism 2 on the front, the protection mechanism 2 is provided with a sliding mechanism 3 at the bottom, and the intelligent door lock body 1 is internally provided with a fingerprint recognizer body 4.

[0027] The protection mechanism 2 comprises a fixed box 21 fixedly connected to the front of the intelligent door lock body 1, a spring 22 fixedly connected to the inner wall of the fixed box 21, a rectangular plate 23 fixedly connected to the bottom end of the spring 22, a magnetic block one 26 fixedly connected to the bottom of the rectangular plate 23, a connecting shaft 24 fixedly connected to the top of the rectangular plate 23, a push plate 25 fixedly connected to the outer wall of the connecting shaft 24, a magnetic block two 27 arranged on the top of the sliding mechanism 3, and a protection plate 28 arranged on the inner side of the sliding mechanism 3.

[0028] Further, the shape of the outer side of the rectangular plate 23 matches the shape of the inner wall of the fixed box 21, and the rectangular plate 23 is slidingly connected to the inner wall of the fixed box 21, so that the rectangular plate 23 can stably move to compress the spring 22.

[0029] Further, a circular hole is formed in the top of the fixed box 21, and the connecting shaft 24 penetrates through the circular hole and moves, so that the connecting shaft 24 can move through the circular hole.

[0030] Further, the spring 22 is fixedly connected to the top of the inner wall of the fixed box 21, and the spring 22 is sleeved on the outer wall of the connecting shaft 24 to support the spring 22.

[0031] Embodiment two

[0032] Reference Figures 1 to 5 , and on the basis of embodiment one, the sliding mechanism 3 further comprises a fixed groove one 31 fixedly connected to the front of the intelligent door lock body 1, a sliding block one 32 slidingly connected to the inner wall of the fixed groove one 31, a fixed groove two 33 fixedly connected to the front of the intelligent door lock body 1, and a sliding block two 34 fixedly connected to the inner wall of the fixed groove two 33, so that the protection plate 28 can stably slide and be limited.

[0033] Further, the sliding block two 34 and the sliding block one 32 are fixedly connected to the left side and the right side of the protection plate 28 respectively, the bottom of the magnetic block one 26 is in contact with the top of the magnetic block two 27, and the opposite poles of the two are in contact with each other, so that the magnetic block one 26 and the magnetic block two 27 can better be adsorbed.

[0034] Further, a through hole is formed in the top of the fixed groove one 31, the magnetic block one 26 penetrates through the through hole, and the magnetic block two 27 is fixedly connected to the top of the sliding block one 32, so that the magnetic block one 26 can be adsorbed and limited by the magnetic block two 27 through the through hole.

[0035] In actual operation, when the device is used, when the user needs to use the fingerprint recognizer body 4 for unlocking, first, the push plate 25 can be pushed to move, the push plate 25 can drive the rectangular plate 23 to move downwards through the connecting shaft 24, the rectangular plate 23 can slide and limit on the inner wall of the fixed box 21, the rectangular plate 23 can compress the spring 22, and the rectangular plate 23 can drive the magnetic block one 26 to move upwards, since the bottom of the magnetic block one 26 and the top of the magnetic block two 27 are mutually attached and adsorbed, when the magnetic block one 26 moves upwards, the magnetic block two 27 and the magnetic block one 26 are separated from adsorption, at this time, the protective plate 28 is no longer limited by the force and can move downwards under the action of gravity, so that the fingerprint recognizer body 4 can be exposed, thereby facilitating the user to further identify and operate, and the fingerprint recognizer body 4 can also be protected, the situation that the fingerprint recognizer body 4 is exposed to dust, water vapor, oil stains and the like for a long time is reduced, and the problem that the surface is prone to accumulate stains such as fingerprint residues and dust particles, causing the sensor recognition accuracy to decrease and the misrecognition rate to increase is reduced, the situation that water vapor may penetrate into the inside of the fingerprint recognizer body in a humid environment, causing a circuit short circuit or sensor failure is effectively solved, and the practicability of the device is enhanced.

[0036] When the fingerprint recognizer body 4 is used to identify a fingerprint, the protective plate 28 can be pushed upwards to move, the protective plate 28 can drive the sliding block one 32 to slide and limit on the inner wall of the fixed groove one 31, the protective plate 28 can drive the sliding block two 34 to slide and limit on the inner wall of the fixed groove two 33, and the sliding block two 34 can also drive the magnetic block two 27 to move towards the magnetic block one 26, when the protective plate 28 completely covers the fingerprint recognizer body 4, the magnetic block two 27 and the magnetic block one 26 are mutually attached and contacted, adsorption is achieved, the protective plate 28 is conveniently positioned and stored, and the stability of the protective plate 28 in the protection process is ensured.

[0037] In the specification and claims of the present application, the words "comprise / comprising" and the words "have / having" and their conjugates, are used to specify the presence of stated features, numbers, steps or components, but do not exclude the presence or addition of one or more other features, numbers, steps, components or combinations thereof.

[0038] Some features of the present application are described in different embodiments for the sake of clarity, however, these features can also be combined in a single embodiment. Conversely, some features of the present application are described in a single embodiment for the sake of brevity, however, these features can also be described in different embodiments, alone or in any suitable combination.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart door lock with a concealed fingerprint reader, comprising a smart door lock body (1), characterized in that: The smart door lock body (1) has a protective mechanism (2) on the front, a sliding mechanism (3) at the bottom of the protective mechanism (2), and a fingerprint reader body (4) inside the smart door lock body (1). The protective mechanism (2) includes a fixed box (21), which is fixedly connected to the front of the smart door lock body (1). A spring (22) is fixedly connected to the inner wall of the fixed box (21). A rectangular plate (23) is fixedly connected to the bottom of the spring (22). A magnetic block (26) is fixedly connected to the bottom of the rectangular plate (23). A connecting shaft (24) is fixedly connected to the top of the rectangular plate (23). A push plate (25) is fixedly connected to the outer wall of the connecting shaft (24). A magnetic block (27) is provided on the top of the sliding mechanism (3). A protective plate (28) is provided on the inner side of the sliding mechanism (3).

2. The smart door lock with a concealed fingerprint reader according to claim 1, characterized in that: The outer shape of the rectangular plate (23) matches the inner wall shape of the fixed box (21), and the rectangular plate (23) is slidably connected to the inner wall of the fixed box (21).

3. A smart door lock with a concealed fingerprint reader according to claim 1, characterized in that: The top of the fixed box (21) has a circular hole, and the connecting shaft (24) passes through the circular hole and moves.

4. A smart door lock with a concealed fingerprint reader according to claim 1, characterized in that: The spring (22) is fixedly connected to the top of the inner wall of the fixed box (21), and the spring (22) is sleeved on the outer wall of the connecting shaft (24).

5. A smart door lock with a concealed fingerprint reader according to claim 1, characterized in that: The sliding mechanism (3) includes a first fixing groove (31), which is fixedly connected to the front of the smart lock body (1). The inner wall of the first fixing groove (31) is slidably connected to a first slider (32). The front of the smart lock body (1) is fixedly connected to a second fixing groove (33), and the inner wall of the second fixing groove (33) is fixedly connected to a second slider (34).

6. A smart door lock with a concealed fingerprint reader according to claim 5, characterized in that: The second slider (34) and the first slider (32) are fixedly connected to the left and right sides of the protective plate (28), respectively. The bottom of the first magnetic block (26) is in contact with the top of the second magnetic block (27), and the sides of the two in contact with each other are opposite magnetic poles.

7. A smart door lock with a concealed fingerprint reader according to claim 5, characterized in that: The top of the fixing groove (31) has a through hole, the magnetic block (26) passes through the through hole, and the magnetic block (27) is fixedly connected to the top of the slider (32).