CN110111451B - Anti-theft hidden fingerprint identification device - Google Patents
Anti-theft hidden fingerprint identification device Download PDFInfo
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- CN110111451B CN110111451B CN201910227932.2A CN201910227932A CN110111451B CN 110111451 B CN110111451 B CN 110111451B CN 201910227932 A CN201910227932 A CN 201910227932A CN 110111451 B CN110111451 B CN 110111451B
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- fingerprint
- wheel
- fingerprint sensor
- protection device
- cavity
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
- G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
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- Lock And Its Accessories (AREA)
Abstract
The invention discloses a theft-proof hidden fingerprint identification device, which structurally comprises a door handle and a fingerprint device, wherein the door handle is provided with the fingerprint device, a cavity is arranged in the door handle, the door handle is provided with an opening, the opening is communicated with the cavity, the fingerprint device consists of a fingerprint sensor, a lifting device, a transmission device, a protection device and a wiping device, the protection device is arranged at the opening, the wiping device is arranged above the protection device, the side surface of the wiping device is provided with the fingerprint sensor, the fingerprint sensor is connected with the lifting device, the bottom of the lifting device is in transmission connection with the protection device through the transmission device, and the lifting device consists of a clockwork spring, a rotary disc, a nut, a lead screw, a guide rail and a wire wheel, and the theft-proof hidden fingerprint identification device has the beneficial effects that: the protection is realized, and meanwhile, the power consumption is not needed, so that the energy is saved and the environment is protected; the user can adopt the correct gesture for verification, so that the verification accuracy and efficiency are improved; the possibility of stealing fingerprints is avoided, and the safety is improved; can make the sponge wheel recycle, clean effect is better.
Description
Technical Field
The invention relates to the technical field of fingerprints, in particular to a hidden type fingerprint identification device for preventing theft.
Background
The technology of fingerprint identification is widely applied, and the figure of the fingerprint identification technology can be seen in the access control and attendance system.
Present fingerprint lock should be extensive, in order to avoid receiving the damage, application number 201820403840.6's patent has proposed to make fingerprint sensor conceal through the rotation, avoid receiving the damage, but this design in use need rotate through the motor, can be with higher speed the electric quantity of consumption battery, it is long when reducing the power consumption, when using, the fingerprint can be printed on fingerprint sensor, if not in time erasing, easily stolen the fingerprint by the people and duplicate, reduce factor of safety, when the angle of fingerprint when holding produces the deviation with original fingerprint, the verification time can lengthen, probably lead to unable verification can produce the erroneous judgement.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a hidden anti-theft fingerprint identification device.
The invention is realized by adopting the following technical scheme: the utility model provides a hidden fingerprint identification device of thief-proof, its structure includes door hand (hold), fingerprint device, be equipped with the fingerprint device on the door hand (hold), be equipped with the cavity in the door hand (hold), the door hand (hold) is equipped with the opening, the opening is linked together with the cavity, the fingerprint device comprises fingerprint sensor, elevating gear, transmission, protection device, wiping arrangement, protection device establishes at the opening part, wiping arrangement establishes in the protection device top, the wiping arrangement side is equipped with fingerprint sensor, fingerprint sensor is connected with elevating gear, the elevating gear bottom is connected with the protection device transmission through transmission.
Preferably, the lifting device comprises a clockwork spring, a rotary table, a nut, a screw rod, a guide rail and a wire wheel, the screw rod is installed in the guide rail, the nut is sleeved on the screw rod, the top of the screw rod is connected with the rotary table, and the wire wheel is connected to the bottom of the screw rod.
As optimization, the turntable is connected with the top of the guide rail through a clockwork spring, the nut is connected with the fingerprint sensor, and a guide block is arranged above the fingerprint sensor.
Preferably, the transmission device comprises a pull rope, an amplifying wheel, a transition wheel, a rolling rope and a pulley, wherein the amplifying wheel and the transition wheel are concentric circles and are connected, the amplifying wheel is connected with the wire wheel through the pull rope, the transition wheel is connected with the protection device through the rolling rope, and the pulley is arranged on the side face of the protection device and is in sliding connection with the rolling rope.
Preferably, the protection device comprises a guide rod, a traction rope, a spring, a moving block and a guide groove, wherein the side surface of the moving block is connected with the inner wall of the cavity through the traction rope and the spring, the traction rope is arranged in the middle of the spring, the guide groove is arranged on the inner side of the moving block, the guide groove is matched with the guide rod, and the guide rod is connected into the cavity.
Preferably, the top view of the moving block is in a right-angle sector shape, the number of the protection devices is 2, the protection devices are symmetrically distributed in the opening, and the arc-shaped surfaces of the moving block are opposite to each other so that a V-shape is formed in the middle of the moving block.
As optimization, the wiping device comprises a sponge roller, a roller frame, a compression spring, a push rod, a fixing plate and a rod head, wherein the sponge roller is installed on the roller frame, the roller frame is connected with one end of the rod head, the other end of the rod head is connected with the rod head by penetrating through the fixing plate, and the fixing plate is fixed in the cavity.
Preferably, the wiping device further comprises a pawl, a support and a ratchet wheel, the ratchet wheel is connected to the side face of the sponge roller, the ratchet wheel is matched with the pawl arranged below the ratchet wheel, and the pawl is arranged on the support.
And optimally, the sponge roller and the roller frame are in excessive matching.
Preferably, the longest distance of the sponge roller does not exceed the left side of the guide block.
Preferably, the guide rods are provided with 2 guide rods which are respectively arranged at the upper side and the lower side of the moving block.
Advantageous effects
When the fingerprint verification device is used, a finger directly extends into the fingerprint verification device from 2 moving blocks, due to the V-shaped design, the finger can smoothly extend into the fingerprint verification device and push the 2 moving blocks away towards two sides, when the moving blocks are pushed away, the winding rope is pulled to drive the transition wheel to rotate, the amplification wheel can amplify, so that the lead screw is driven to rotate, the clockwork spring is tightened, the nut drives the fingerprint sensor to descend, the finger extends into the fingerprint verification device to verify the fingerprint, due to the fact that the left and right distances of the 2 moving blocks are limited and have a certain height, when the distance of the 2 moving blocks is small in other directions, the finger can be clamped, the fingerprint verification part is too small, so that the fingerprint can be verified only by vertically placing the finger, the 2 moving blocks are closed again under the action of the spring after the finger is taken out, the lead screw drives the nut to ascend under the reset action, when the fingerprint sensor ascends, the sponge roller pushes rightwards along the guide block, then fingerprint sensor's sensing face from the top down contacts with the sponge roller, makes the sponge roller clean the fingerprint above with, when fingerprint sensor descends once more, the sponge roller passes through compression spring's power and moves certain distance left, at this moment under the effect of pawl, can drive the rotatory certain angle of ratchet, makes the sponge roller press close to fingerprint sensor's position and rotates, avoids the same sponge face of used repeatedly to be dirty too fast, and the recycling is cleaner.
Compared with the prior art, the invention has the beneficial effects that: the fingerprint sensor can be protected without electricity through the mechanical transmission design of the protection device, so that the energy is saved and the environment is protected; the 2 moving blocks are designed to enable a user to verify by adopting correct gestures, so that the verification accuracy and efficiency are improved; the fingerprint sensor is lifted by the lifting device to be in contact with the sponge roller for wiping, so that the possibility of fingerprint theft is avoided, and the safety is improved; the sponge wheel can be recycled through the matching of the ratchet wheel and the pawl, and the cleaning effect is better.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a hidden type anti-theft fingerprint identification device of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the fingerprint device of the present invention.
Fig. 3 is a schematic structural diagram of the lifting device of the present invention.
Fig. 4 is a schematic view of a connection structure of the transmission device and the protection device of the present invention.
Fig. 5 is a schematic structural view of fig. 4 when opened.
Fig. 6 is a schematic view of the wiping apparatus of the present invention.
In the figure: the fingerprint device comprises a door handle 1, a fingerprint device 2, a cavity 10, an opening 11, a fingerprint sensor 20, a guide block 200, a lifting device 21, a transmission device 22, a protection device 23, a wiping device 24, a spring 21a, a rotary disc 21b, a nut 21c, a lead screw 21d, a guide rail 21e, a wire wheel 21f, a pull rope 22a, an amplifying wheel 22b, a transition wheel 22c, a winding rope 22d, a pulley 22e, a guide rod 23a, a traction rope 23b, a spring 23c, a moving block 23d, a guide groove 23e, a sponge roller 24a, a roller frame 24b, a compression spring 24c, a push rod 24d, a fixing plate 24e, a rod head 24f, a pawl 24h, a support 24i and a ratchet wheel 24 j.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution of a hidden fingerprint identification device for preventing theft: its structure includes door hand (hold) 1, fingerprint device 2, be equipped with fingerprint device 2 on the door hand (hold) 1, be equipped with cavity 10 in the door hand (hold) 1, door hand (hold) 1 is equipped with opening 11, opening 11 is linked together with cavity 10, fingerprint device 2 comprises fingerprint sensor 20, elevating gear 21, transmission 22, protection device 23, wiping arrangement 24, protection device 23 establishes in opening 11 department, wiping arrangement 24 establishes in protection device 23 top, wiping arrangement 24 side is equipped with fingerprint sensor 20, fingerprint sensor 20 is connected with elevating gear 21, elevating gear 21 bottom is connected with the transmission of protection device 23 through transmission 22.
The lifting device 21 comprises a spring 21a, a rotary disc 21b, a nut 21c, a lead screw 21d, a guide rail 21e and a reel 21f, the lead screw 21d is installed in the guide rail 21e, the nut 21c is sleeved on the lead screw 21d, the top of the lead screw 21d is connected with the rotary disc 21b, the reel 21f is connected to the bottom of the lead screw 21d, and the spring has elasticity and can be automatically reset after being tightened so as to drive the nut 21c to reset.
The rotating disc 21b is connected with the top of the guide rail 21e through the spiral spring 21a, the nut 21c is connected with the fingerprint sensor 20, the guide block 200 is arranged above the fingerprint sensor 20, the guide block 200 can guide and push the wiping device 24, and the situation that the wiping device 24 is directly clamped by the top of the fingerprint sensor 20 in a too flat mode is avoided.
The transmission device 22 comprises a pull rope 22a, an amplifying wheel 22b, a transition wheel 22c, a winding rope 22d and a pulley 22e, the amplifying wheel 22b and the transition wheel 22c are concentric circles and are connected with each other, the amplifying wheel 22b is connected with a wire wheel 21f through the pull rope 22a, the transition wheel 22c is connected with a protection device 23 through the winding rope 22d, the pulley 22e is arranged on the side face of the protection device 23 and is in sliding connection with the winding rope 22d, the distance of a turn can be directly amplified through the connection of the amplifying wheel 22b and the transition wheel 22c, the pulley 22e can perform a fixed guiding effect on the winding rope 22d, the distance between the winding rope 22d and the protection device 23 is enabled to be close to, and the moving distances between the winding rope 22d and the protection device 23 are enabled to be consistent.
The protection device 23 comprises a guide rod 23a, a pulling rope 23b, a spring 23c, a moving block 23d and a guide groove 23e, the side surface of the moving block 23d is connected with the inner wall of the cavity 10 through the pulling rope 23b and the spring 23c, the pulling rope 23b is arranged in the middle of the spring 23c, the guide groove 23e is arranged on the inner side of the moving block 23d, the guide groove 23e is matched with the guide rod 23a, the guide rod 23a is connected in the cavity 10, the pulling rope 23b can limit the moving block 23d, and the horizontal movement of the moving block 23d can be guaranteed due to the matching of the guide rod 23a and the guide groove 23 e.
The top view of the moving block 23d is a right-angle sector, the number of the protection devices 23 is 2, the protection devices are symmetrically distributed in the opening 11, the arc-shaped surfaces of the moving block 23d are opposite to each other, so that a V-shaped structure is formed in the middle, fingers can be pushed open directly when the fingers stretch into the V-shaped structure, and the operation is more convenient.
The wiping device 24 comprises a sponge roller 24a, a roller frame 24b, a compression spring 24c, a push rod 24d, a fixing plate 24e and a rod head 24f, the sponge roller 24a is installed on the roller frame 24b, the roller frame 24b is connected with one end of the rod head 24f, the other end of the rod head 24f is connected with the rod head 24f through the fixing plate 24e, the fixing plate 24e is fixed in the cavity 10, the sponge on the sponge roller 24a can wipe the fingerprint sensor 20, and the compression spring 24c can provide power for rotation of the sponge roller 24 a.
The wiping device 24 further comprises a pawl 24h, a support 24i and a ratchet wheel 24j, the ratchet wheel 24j is connected to the side face of the sponge roller 24a, the ratchet wheel 24j is matched with the pawl 24h arranged below, the pawl 24h is installed on the support 24i, and the force of the sponge roller 24a moving horizontally can be converted into the rotating force through the pawl 24h, so that the sponge roller 24a is driven to rotate at a small angle.
The sponge roller 24a and the roller frame 24b are excessively matched, have a certain self-locking function, and avoid the rotation of the sponge roller 24 a.
The sponge roller 24a is pushed by the guide block 200 only when the longest distance of the sponge roller 24a does not exceed the left side of the guide block 200.
The guide rod 23a is provided with 2 guide rods which are respectively arranged at the upper side and the lower side of the moving block 23d and can balance the upper side and the lower side of the moving block 23 d.
When the fingerprint verification device is used, a finger directly extends from the 2 moving blocks 23d, due to the design of the V shape, the finger can smoothly extend and push the 2 moving blocks 23d away towards two sides, when the moving blocks 23d are pushed away, the winding rope 22d is pulled to drive the transition wheel 22c to rotate, the amplification wheel 22b can amplify, so that the lead screw 21d is driven to rotate, the clockwork spring 21a tightens, the nut 21c drives the fingerprint sensor 20 to descend, the finger extends into the inside to perform fingerprint verification, the left distance and the right distance of the 2 moving blocks 23d are limited and have a certain height, when the other directions are in other directions, the distance of the 2 moving blocks 23d is small, the clockwork spring 21a can be clamped, the fingerprint verification part is too small, so that the fingerprint can only be verified by taking the finger vertically, after the finger is taken out, the 2 moving blocks 23d are reclosed under the action of the spring 23c, and the lead screw 21d drives the nut 21c to ascend under the reset action of the clockwork spring 21a, when the fingerprint sensor 20 ascends, the sponge roller 24a pushes rightwards along the guide block 200, then the sensing surface of the fingerprint sensor 20 contacts with the sponge roller 24a from top to bottom, so that the sponge roller 24a cleans the fingerprint on the sensing surface, when the fingerprint sensor 20 descends again, the sponge roller 24a moves leftwards for a certain distance through the force of the compression spring 24c, at this time, under the action of the pawl 24h, the ratchet wheel 24j can be driven to rotate for a certain angle, the sponge roller 24a rotates close to the position of the fingerprint sensor 20, the phenomenon that the same sponge surface is dirty when being repeatedly used is avoided, and the cycle use is cleaner.
Compared with the prior art, the invention has the technical progress that: the fingerprint sensor can be protected without electricity through the mechanical transmission design of the protection device, so that the energy is saved and the environment is protected; the 2 moving blocks are designed to enable a user to verify by adopting correct gestures, so that the verification accuracy and efficiency are improved; the fingerprint sensor is lifted by the lifting device to be in contact with the sponge roller for wiping, so that the possibility of fingerprint theft is avoided, and the safety is improved; the sponge wheel can be recycled through the matching of the ratchet wheel and the pawl, and the cleaning effect is better.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. The utility model provides a hidden fingerprint identification device of thief-proof, its structure includes door handle (1), fingerprint device (2), be equipped with fingerprint device (2) on door handle (1), its characterized in that: a cavity (10) is arranged in the door handle (1), an opening (11) is formed in the door handle (1), and the opening (11) is communicated with the cavity (10);
the fingerprint device (2) is composed of a fingerprint sensor (20), a lifting device (21), a transmission device (22), a protection device (23) and a wiping device (24), the protection device (23) is arranged at the opening (11), the wiping device (24) is arranged above the protection device (23), the fingerprint sensor (20) is arranged on the side surface of the wiping device (24), the fingerprint sensor (20) is connected with the lifting device (21), and the bottom of the lifting device (21) is in transmission connection with the protection device (23) through the transmission device (22);
the lifting device (21) consists of a clockwork spring (21 a), a rotary table (21 b), a nut (21 c), a lead screw (21 d), a guide rail (21 e) and a wire wheel (21 f), wherein the lead screw (21 d) is installed in the guide rail (21 e), the nut (21 c) is sleeved on the lead screw (21 d), the top of the lead screw (21 d) is connected with the rotary table (21 b), and the wire wheel (21 f) is connected to the bottom of the lead screw (21 d);
the rotary disc (21 b) is connected with the top of a guide rail (21 e) through a clockwork spring (21 a), the nut (21 c) is connected with the fingerprint sensor (20), and a guide block (200) is arranged above the fingerprint sensor (20);
the transmission device (22) consists of a pull rope (22 a), an amplifying wheel (22 b), a transition wheel (22 c), a coiling rope (22 d) and a pulley (22 e), wherein the amplifying wheel (22 b) and the transition wheel (22 c) are concentric circles and are connected with each other, the amplifying wheel (22 b) is connected with a wire wheel (21 f) through the pull rope (22 a), the transition wheel (22 c) is connected with a protection device (23) through the coiling rope (22 d), and the pulley (22 e) is arranged on the side face of the protection device (23) and is in sliding connection with the coiling rope (22 d);
the protection device (23) consists of a guide rod (23 a), a traction rope (23 b), a spring (23 c), a moving block (23 d) and a guide groove (23 e), the side surface of the moving block (23 d) is connected with the inner wall of the cavity (10) through the traction rope (23 b) and the spring (23 c), the traction rope (23 b) is arranged in the middle of the spring (23 c), the guide groove (23 e) is formed in the inner side of the moving block (23 d), the guide groove (23 e) is matched with the guide rod (23 a), and the guide rod (23 a) is connected in the cavity (10);
the top view of the moving block (23 d) is in a right-angle fan shape, 2 protection devices (23) are symmetrically distributed in the opening (11), and arc-shaped surfaces of the moving block (23 d) are opposite;
the wiping device (24) comprises a sponge roller (24 a), a roller frame (24 b), a compression spring (24 c), a push rod (24 d), a fixing plate (24 e) and a rod head (24 f), the sponge roller (24 a) is installed on the roller frame (24 b), the roller frame (24 b) is connected with one end of the rod head (24 f), the other end of the rod head (24 f) is connected with the rod head (24 f) by penetrating through the fixing plate (24 e), and the fixing plate (24 e) is fixed in the cavity (10);
the wiping device (24) further comprises a pawl (24 h), a support (24 i) and a ratchet wheel (24 j), the ratchet wheel (24 j) is connected to the side face of the sponge roller (24 a), the ratchet wheel (24 j) is matched with the pawl (24 h) arranged below, and the pawl (24 h) is installed on the support (24 i).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227932.2A CN110111451B (en) | 2019-03-25 | 2019-03-25 | Anti-theft hidden fingerprint identification device |
| CN202011569541.8A CN112767584A (en) | 2019-03-25 | 2019-03-25 | Fingerprint identification system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227932.2A CN110111451B (en) | 2019-03-25 | 2019-03-25 | Anti-theft hidden fingerprint identification device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569541.8A Division CN112767584A (en) | 2019-03-25 | 2019-03-25 | Fingerprint identification system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110111451A CN110111451A (en) | 2019-08-09 |
| CN110111451B true CN110111451B (en) | 2021-07-27 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227932.2A Active CN110111451B (en) | 2019-03-25 | 2019-03-25 | Anti-theft hidden fingerprint identification device |
| CN202011569541.8A Withdrawn CN112767584A (en) | 2019-03-25 | 2019-03-25 | Fingerprint identification system and method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569541.8A Withdrawn CN112767584A (en) | 2019-03-25 | 2019-03-25 | Fingerprint identification system and method |
Country Status (1)
| Country | Link |
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| CN (2) | CN110111451B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195129A (en) * | 2019-12-26 | 2020-05-26 | 中国科学院自动化研究所南京人工智能芯片创新研究院 | Artificial intelligence fingerprint identification device |
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| CN104420725A (en) * | 2013-08-21 | 2015-03-18 | 广东炬森五金精密制造有限公司 | Novel fingerprint lock with fingerprint erasing device |
| JP2016180239A (en) * | 2015-03-24 | 2016-10-13 | 礼男 梅田 | Sliding door type automatic door |
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| US5912981A (en) * | 1996-08-01 | 1999-06-15 | Hansmire; Kenny | Baggage security system and use thereof |
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| CN208092818U (en) * | 2018-04-20 | 2018-11-13 | 四川金网通电子科技有限公司 | A kind of fingerprint acquisition device of electronic lock |
| CN208473472U (en) * | 2018-06-04 | 2019-02-05 | 清远德硕智能科技有限公司 | A kind of smart home security door fingerprint locking device |
| CN109403738B (en) * | 2018-12-14 | 2021-03-23 | 温州市龙湾海伦五金厂 | Intelligent fingerprint lock with enhanced anti-theft performance |
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2019
- 2019-03-25 CN CN201910227932.2A patent/CN110111451B/en active Active
- 2019-03-25 CN CN202011569541.8A patent/CN112767584A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420725A (en) * | 2013-08-21 | 2015-03-18 | 广东炬森五金精密制造有限公司 | Novel fingerprint lock with fingerprint erasing device |
| JP2016180239A (en) * | 2015-03-24 | 2016-10-13 | 礼男 梅田 | Sliding door type automatic door |
| CN206657412U (en) * | 2017-04-19 | 2017-11-21 | 叶秀娴 | A kind of concealed fingerprint recognition entrance guard device |
| CN207328384U (en) * | 2017-09-30 | 2018-05-08 | 比亚迪股份有限公司 | Fingerprint identification device and its control system, vehicle |
| CN207892367U (en) * | 2018-01-09 | 2018-09-21 | 广州海英智慧家居科技有限公司 | One kind being convenient for clean Fingerprint Lock |
| CN207934609U (en) * | 2018-01-09 | 2018-10-02 | 广州海英智慧家居科技有限公司 | A kind of concealed Fingerprint Lock |
| CN108979321A (en) * | 2018-06-20 | 2018-12-11 | 郴州多特科技发展有限公司 | A kind of novel finger print lock |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110111451A (en) | 2019-08-09 |
| CN112767584A (en) | 2021-05-07 |
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