CN209942442U - Miniature fingerprint lock - Google Patents
Miniature fingerprint lock Download PDFInfo
- Publication number
- CN209942442U CN209942442U CN201920280156.8U CN201920280156U CN209942442U CN 209942442 U CN209942442 U CN 209942442U CN 201920280156 U CN201920280156 U CN 201920280156U CN 209942442 U CN209942442 U CN 209942442U
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- lock
- pcb
- hole
- free end
- shell
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Abstract
The utility model discloses a micro fingerprint lock, belonging to the lock field, solving the problems that the volume of the lock for the case and the bag is large, and the lock influences the aesthetic feeling of the whole bag when in use; the lock comprises a lock beam, a shell, an elastic sheet, a titanium metal wire, a battery and a PCB; the elastic sheet comprises a fixed end fixed with the shell and a free end extending away from the fixed end; the free end is sleeved with a lock bolt; one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB; the PCB is electrically connected with the battery; the shell is provided with a lock hole, one end of the lock beam is connected with the shell through a spring, and the other end of the lock beam is matched with the lock hole; the lock beam is also provided with a clamping hole matched with the lock bolt; when the lock bolt and the clamping hole are abutted against each other, the lock beam is inserted into the lock hole to realize locking; the battery works, so that the titanium wire is heated and contracted to pull the free end, the free end drives the lock bolt to be separated from the clamping hole, and the spring pushes the lock beam to move in the direction far away from the lock hole, so that unlocking is realized; the titanium wire is used as a driving device, and compared with the driving device which is driven by a motor, the volume of the lock is greatly reduced.
Description
Technical Field
The utility model relates to a case and bag tool to lock field, concretely relates to miniature fingerprint lock.
Background
Cabinets, men's or women's saddlebags or backpack bags are usually directly fastened together by zippers or buckles; however, the direct snap closure is not secure enough; a part of the cabinets are provided with coded locks; for example, a luggage case; but most bins or bags are unlocked; because if a lock is to be placed on a package, two conditions need to be met: the first is that the volume of the lock is small, and the second is that the unlocking is convenient; therefore, the object can be conveniently taken; however, the existing locks on the market are usually large in size, and the attractiveness of the bag is seriously affected.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the technology, the utility model provides a miniature fingerprint lock, the volume of the whole lock is equivalent to the size of a thumb, and the lock is very small; when the lock is used for locking a single-shoulder bag or a satchel, the integral attractiveness is not influenced, and the lock is convenient to unlock when articles are taken and placed.
In order to achieve the purpose, the utility model provides a micro fingerprint lock, which comprises a lock beam, a shell, an elastic sheet, a titanium metal wire, a battery and a PCB board; the elastic sheet comprises a fixed end fixed with the shell and a free end extending away from the fixed end; the free end is sleeved with a lock bolt; one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB; the PCB is electrically connected with the battery; the shell is provided with a lock hole, one end of the lock beam is connected with the shell through a spring, and the other end of the lock beam is matched with the lock hole; the lock beam is also provided with a clamping hole matched with the lock bolt; when the lock bolt and the clamping hole are abutted against each other, the lock beam is inserted into the lock hole to realize locking; the battery works, so that the titanium wire is heated and contracted to pull the free end, the free end drives the lock bolt to be separated from the clamping hole, and the spring pushes the lock beam to move towards the direction far away from the lock hole, so that unlocking is realized.
One or more wrapping posts are arranged in the shell, one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB after passing around the wrapping posts in sequence.
The free end, the winding post and the PCB are sequentially connected to form a closed graph, and the battery is located inside the closed graph.
The shell is provided with a positioning column, and the lock beam is sleeved on the positioning column; one end of the spring is connected with the positioning column, and the other end of the spring is connected with the lock beam; when the lock bolt is abutted against the clamping hole, the spring is in a compressed state.
The PCB is provided with a fingerprint identification area; the shell is provided with a through hole, and the fingerprint identification area corresponds to the through hole.
Wherein the housing is provided with a charging port; the charging port is electrically connected with the PCB; and the external input current sequentially passes through the charging port and the PCB to charge the battery.
The utility model has the advantages that: compared with the prior art, the method has the advantages that,
1. the utility model comprises a lock beam, a shell, a spring plate, a titanium metal wire, a battery and a PCB; when the lock bolt and the clamping hole are abutted against each other, the lock beam is inserted into the lock hole to realize locking; the battery works, so that the titanium wire is heated and contracted to pull the free end, the free end drives the lock bolt to be separated from the clamping hole, and the spring pushes the lock beam to move in the direction far away from the lock hole to realize unlocking; the titanium wire is used as a driving device, and compared with the driving device which is driven by a motor, the volume is greatly reduced;
2. one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB after sequentially bypassing the winding post; the winding mode ensures that the length of the titanium wire is enough, and the lock bolt can be pulled to generate enough displacement after being contracted;
3. the free end, the winding post and the PCB are sequentially connected to form a closed graph, and the battery is positioned in the closed graph; the space in the shell is fully utilized; whole structural design is ingenious, and the casing space obtains make full use of, can stabilize the switch lock and can make the volume of whole lock reach the minimum again.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an overall structure diagram of the present invention;
fig. 3 is an internal structure diagram of the present invention.
The main element symbols are as follows:
1. a housing; 2. a spring plate; 3. a lock beam; 4. a positioning column; 5. a spring; 6. a battery; 7. a titanium wire; 8. a winding post; 9. a PCB board; 11. a lock hole; 21. a fixed end; 22. a free end; 31. a clamping hole; 32. a lock bolt; 91. a fingerprint identification area.
Detailed Description
In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, a micro fingerprint lock includes a lock beam 3, a housing 1, a spring plate 2, a titanium wire 7, a battery 6 and a PCB 9; the elastic sheet 2 comprises a fixed end 21 fixed with the shell 1 and a free end 22 extending away from the fixed end 21; a lock bolt 32 is sleeved on the free end 22; one end of the titanium metal wire 7 is connected with the free end 22, and the other end of the titanium metal wire is connected with the PCB 9; the PCB 9 is electrically connected with the battery 6; the shell 1 is provided with a lock hole 11, one end of the lock beam 3 is connected with the shell 1 through a spring 5, and the other end of the lock beam is matched with the lock hole 11; the lock beam 3 is also provided with a clamping hole 31 matched with the lock bolt 32; when the lock bolt 32 and the clamping hole 31 are abutted against each other, the lock beam 3 is inserted into the lock hole 11 to realize locking; the battery 6 works, so that the titanium wire 7 is heated and contracted to pull the free end 22, the free end 22 drives the lock bolt 32 to be separated from the clamping hole 31, and the spring 5 pushes the lock beam 3 to move towards the direction far away from the lock hole 11, so that unlocking is realized.
In the embodiment, one or more winding posts 8 are arranged on the rear cover of the shell 1, one end of the titanium wire 7 is connected with the free end 22, and the other end of the titanium wire is connected with the PCB 9 after sequentially bypassing the winding posts 8; specifically, the free end 22, the winding post 8 and the PCB are sequentially connected to form a closed figure, and the battery 6 is located inside the closed figure; the space in the shell 1 is fully utilized by the design; the space occupied by the battery 6, the titanium wire 7 and the wrapping post 8 is equal to the space occupied by the titanium wire 7 and the wrapping post 8; the PCB 9 covers the battery 6, one surface of the PCB is contacted with the battery 6, and the other surface of the PCB is contacted with the front cover of the shell 1; the thickness of the whole lock is the thickness of the PCB 9 plus the battery 6; the lock is driven by heating titanium metal, the requirement on the output power of the battery 6 is low, and the volume of the battery 6 is greatly reduced by adopting the battery 6 to drive the motor; in actual production, the length and width of the lock are about 30mm, and the thickness of the lock is only 10 mm; the whole lock is very small and exquisite in size and accurate.
Referring to fig. 2, the housing 1 is provided with a positioning post 4, and the lock beam 3 is sleeved on the positioning post; one end of the spring 5 is connected with the positioning column 4, and the other end of the spring is connected with the lock beam 3; when the lock bolt 32 is abutted against the clamping hole 31, the spring 5 is in a compressed state; specifically, the lock beam 3 is in an inverted J shape, the top end of the long side of the J shape is sleeved on the positioning column 4, and the top end of the short side is matched with the lock hole 11; the titanium wire 7 is heated and contracted, the free end 22 is pulled to rotate around the fixed end 21 in the direction far away from the lock beam 3, and the free end 22 drives the lock bolt 32 to move in the direction far away from the clamping hole 31; after the lock bolt 32 is separated from the clamping hole 31, the spring 5 drives the whole lock beam 3 to move towards the direction far away from the lock hole 11, so that unlocking is realized; after unlocking, the titanium wire 7 is cooled and then returns to the original length, the free end 22 of the elastic sheet 2 also returns to the original position, and the lock bolt 32 and the lock beam 3 are mutually abutted; the lock beam 3 is manually pressed down, the lock bolt 32 slides relatively along the lock beam 3 until the lock bolt 32 slides into the clamping hole 31, and the lock bolt 32 and the clamping hole 31 are mutually abutted to realize locking; and at this time, the spring 5 is compressed; in the embodiment, the length of the titanium gold wire is 50-60 mm; the shrinkage is 4%; and the length of the latch 32 inserted into the lock hole 11 is 2 mm; the elastic sheet 2 is made of a spring 5 steel material; the titanium wire 7 can pull the lock bolt 32 out of the lock hole 11 after being heated, so as to ensure smooth unlocking.
Referring to fig. 3, a fingerprint identification area 91 is formed on one surface of the PCB 9, and the electronic component is disposed opposite to the fingerprint identification area 91; the shell 1 is provided with a through hole, and the fingerprint identification area 91 corresponds to the through hole; when the fingerprint identification device is used, a finger can directly touch the fingerprint identification area 91, and the fingerprint identification area 91 identifies and pairs external fingerprints; if the pairing is successful, the battery 6 and the titanium metal wire 7 are conducted, and the titanium metal wire 7 is heated and shrunk; if the pairing is failed, the battery 6 and the titanium wire 7 are not conducted, and the titanium wire 7 is not heated and still in the original state; in the present embodiment, the housing 1 is provided with a charging port, and the charging port is electrically connected with the PCB board 9; the battery 6 is charged by the external input current through the charging port and the PCB 9 in sequence.
The utility model has the advantages that:
1. the utility model comprises a lock beam, a shell, a spring plate, a titanium metal wire, a battery and a PCB; when the lock bolt and the clamping hole are abutted against each other, the lock beam is inserted into the lock hole to realize locking; the battery works, so that the titanium wire is heated and contracted to pull the free end, the free end drives the lock bolt to be separated from the clamping hole, and the spring pushes the lock beam to move in the direction far away from the lock hole to realize unlocking; the titanium wire is used as a driving device, and compared with the driving device which is driven by a motor, the volume is greatly reduced;
2. one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB after sequentially bypassing the winding post; the winding mode ensures that the length of the titanium wire is enough, and the lock bolt can be pulled to generate enough displacement after being contracted;
3. the free end, the winding post and the PCB are sequentially connected to form a closed graph, and the battery is positioned in the closed graph; the space in the shell is fully utilized; whole structural design is ingenious, and the casing space obtains make full use of, can stabilize the switch lock and can make the volume of whole lock reach the minimum again.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (6)
1. A miniature fingerprint lock is characterized by comprising a lock beam, a shell, an elastic sheet, a titanium metal wire, a battery and a PCB (printed circuit board); the elastic sheet comprises a fixed end fixed with the shell and a free end extending away from the fixed end; the free end is sleeved with a lock bolt; one end of the titanium metal wire is connected with the free end, and the other end of the titanium metal wire is connected with the PCB; the PCB is electrically connected with the battery; the shell is provided with a lock hole, one end of the lock beam is connected with the shell through a spring, and the other end of the lock beam is matched with the lock hole; the lock beam is also provided with a clamping hole matched with the lock bolt; when the lock bolt and the clamping hole are abutted against each other, the lock beam is inserted into the lock hole to realize locking; the battery works, so that the titanium wire is heated and contracted to pull the free end, the free end drives the lock bolt to be separated from the clamping hole, and the spring pushes the lock beam to move towards the direction far away from the lock hole, so that unlocking is realized.
2. The micro fingerprint lock according to claim 1, wherein one or more wrapping posts are arranged in the housing, one end of the titanium wire is connected with the free end, and the other end of the titanium wire is connected with the PCB after passing around the wrapping posts in sequence.
3. The micro fingerprint lock of claim 2, wherein the free end, the winding post and the PCB are sequentially connected to form a closed figure, and the battery is located inside the closed figure.
4. The miniature fingerprint lock of claim 1, wherein the housing is provided with a positioning post, and the lock beam is sleeved on the positioning post; one end of the spring is connected with the positioning column, and the other end of the spring is connected with the lock beam; when the lock bolt is abutted against the clamping hole, the spring is in a compressed state.
5. The miniature fingerprint lock of claim 1, wherein said PCB board is provided with a fingerprint identification area; the shell is provided with a through hole, and the fingerprint identification area corresponds to the through hole.
6. The miniature fingerprint lock of claim 1 wherein the housing is provided with a charging port; the charging port is electrically connected with the PCB; and the external input current sequentially passes through the charging port and the PCB to charge the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280156.8U CN209942442U (en) | 2019-03-06 | 2019-03-06 | Miniature fingerprint lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280156.8U CN209942442U (en) | 2019-03-06 | 2019-03-06 | Miniature fingerprint lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209942442U true CN209942442U (en) | 2020-01-14 |
Family
ID=69123178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920280156.8U Expired - Fee Related CN209942442U (en) | 2019-03-06 | 2019-03-06 | Miniature fingerprint lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209942442U (en) |
-
2019
- 2019-03-06 CN CN201920280156.8U patent/CN209942442U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 |