CN113137140A - Electronic lock capable of preventing knocking and unlocking - Google Patents
Electronic lock capable of preventing knocking and unlocking Download PDFInfo
- Publication number
- CN113137140A CN113137140A CN202110529302.8A CN202110529302A CN113137140A CN 113137140 A CN113137140 A CN 113137140A CN 202110529302 A CN202110529302 A CN 202110529302A CN 113137140 A CN113137140 A CN 113137140A
- Authority
- CN
- China
- Prior art keywords
- lock
- stop block
- connecting rod
- shell
- swing rod
- Prior art date
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- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses an electronic lock capable of preventing knocking and unlocking, which comprises a lock catch, a lock shell, a power device, a rotating piece, a connecting rod, a swing rod, a stop block, a first resetting piece and a second resetting piece, wherein the power device, the rotating piece, the connecting rod, the swing rod, the stop block, the first resetting piece and the second resetting piece are arranged in the lock shell; the lock shell is provided with a lock hole; the middle part of the rotating part is pivoted with the lock shell, a lug is arranged on the rotating part, and the power device is used for driving the rotating part to rotate; the middle part of the connecting rod is pivoted with the lock shell, one end of the connecting rod is movably matched with the lug, and the other end of the connecting rod is provided with a movable groove; one end of the swing rod is pivoted with the movable groove; the middle part of the stop block is pivoted with the lock shell, one end of the stop block is opposite to the other end of the oscillating bar, and the other end of the stop block is provided with a lock groove which is movably matched with the lock hole along with the rotation of the stop block; the lock catch is movably matched with the lock hole and inserted into the lock groove; the first resetting piece is arranged between the connecting rod and the oscillating bar so as to reset the oscillating bar towards the direction of the stop block; the second reset piece is arranged between the stop block and the lock shell so as to reset the lock slot towards the lock hole direction and expose the lock slot for the insertion of the lock catch. The invention can prevent knocking unlocking and has high safety.
Description
Technical Field
The invention relates to the technical field of electronic locks, in particular to an electronic lock capable of preventing knocking and unlocking.
Background
Along with the improvement of living standard, online shopping is more and more favored by everyone, and the demand of temporary storage cabinets such as express delivery cabinets also increases year by year, and correspondingly, the tool to lock that these lockers used has also had wider market.
The existing locker lock is characterized in that the existing locker lock is formed by combining two levers and is unlocked by directly driving an electromagnet or a motor, the structure of the mode is too simple, most of the modes are easy to knock and unlock, namely, a cabinet is knocked by a hammer after being locked, and the vibration of parts inside the locker causes unlocking, so that the safety of the locker is low, and the property safety of a user cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an anti-knocking unlocking electronic lock which can prevent knocking unlocking and improve the safety performance of the lock.
In order to achieve the above purpose, the solution of the invention is:
an electronic lock capable of preventing knocking and unlocking comprises a lock catch, a lock shell, a power device, a rotating piece, a connecting rod, a swing rod, a stop block, a first resetting piece and a second resetting piece, wherein the power device, the rotating piece, the connecting rod, the swing rod, the stop block, the first resetting piece and the second resetting piece are arranged in the lock shell; the lock shell is provided with a lock hole; the middle part of the rotating part is rotationally connected with the lock shell, and a lug is arranged on the rotating part; the power device is used for driving the rotating piece to rotate; the middle part of the connecting rod is rotatably connected with the lock shell, one end of the connecting rod is movably matched with the lug, and the other end of the connecting rod is provided with a movable groove; one end of the swing rod is rotatably connected in the movable groove; the middle part of the stop block is rotatably connected with the lock shell, one end of the stop block is arranged opposite to the other end of the oscillating bar, the other end of the stop block is provided with a lock groove, and the lock groove is movably matched with the lock hole along with the rotation of the stop block; the lock catch is movably matched with the lock hole and inserted into the lock groove; the first resetting piece is arranged between the connecting rod and the swing rod so as to enable the swing rod to reset towards the direction of the stop block; when the lock catch is inserted into the lock groove, the stop block is driven to rotate, one end of the stop block jacks the other end of the swing rod, the reset piece resets the swing rod again to jack one end of the stop block, and the stop block cannot rotate any more; the second reset piece is arranged between the stop block and the lock shell, so that the lock groove of the stop block is reset towards the lock hole direction, and the lock groove is exposed to be inserted by the lock catch.
The power device is a motor, and an output shaft of the power device is provided with a worm; the rotating piece is a cam, two ends of the rotating piece are respectively provided with a tooth and the lug, and the tooth is meshed with the worm; the lock shell is provided with a first pivot shaft, the middle part of the cam is provided with a first shaft hole, the first shaft hole is sleeved on the first pivot shaft, and a first bearing is arranged between the first shaft hole and the first pivot shaft.
The top of lug sets up to the arc surface, the connecting rod with lug complex one end is provided with the second bearing, the second bearing swivelling joint is in on the tip of connecting rod.
The lock shell is provided with a second pivot shaft, a second shaft hole is formed in the middle of the connecting rod, the second shaft hole is sleeved on the second pivot shaft, and a third bearing is arranged between the second shaft hole and the second pivot shaft.
The lock shell is provided with a third pivot shaft, the middle part of the stop block is provided with a third shaft hole, and the third shaft hole is sleeved on the third pivot shaft.
The movable groove is provided with a fourth pivot shaft, and one end of the swing rod is sleeved on the fourth pivot shaft.
And the other end of the swing rod is provided with a sliding connection inclined plane.
The end part of the stop block opposite to the swing rod is provided with a fourth bearing, and the fourth bearing is rotatably connected to the end part of the stop block and is in sliding fit with the sliding inclined plane.
The electronic lock capable of preventing knocking and unlocking further comprises a mounting seat arranged in the lock shell, and the mounting seat is used for mounting the motor; and a boss for matching the lug is arranged at one corner of the mounting seat opposite to the cam, and the boss is used for limiting the lug.
The lock shell is provided with a limiting column which is arranged opposite to the stop block and used for limiting the maximum reset angle of the stop block.
After the technical scheme is adopted, the elastic force of the first resetting piece can be designed according to requirements, the driving force of the power device required by unlocking cannot be influenced by the elastic force of the first resetting piece, and when the elastic force of the first resetting piece is designed to be large enough, the problem that the oscillating bar tilts to unlock due to knocking vibration can be completely avoided; compared with other electronic locks of express cabinets, the electronic lock has the greatest advantage of preventing knocking unlocking, and has the advantages of other electronic locks of express cabinets: simple structure, can be unlocked when being electrified, and can be locked when being closed at any time.
Drawings
FIG. 1 is a perspective view of an unlocked state of an embodiment of the present invention;
FIG. 2 is a perspective view of a locked state according to an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a perspective view of a rotating member according to an embodiment of the present invention;
FIG. 5 is a perspective view of a connecting rod in accordance with an embodiment of the present invention;
FIG. 6 is a perspective view of a portion of the locking process in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a lock completion status according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of an unlocking process according to an embodiment of the present invention;
FIG. 9 is a perspective view of a portion of the structure of the present invention in an unlocked condition;
the reference numbers illustrate:
1- -a latch; 2- -lock case; 2A- - -lock hole;
2B- - -a first pivot axis; 2C- - -a second pivot axis; 2D- - -a third pivot axis;
2E- - -a limit post; 3- -a power plant; 3A- - -a worm;
4- -a rotating member; 4A- -rodent; 4B- - -a bump;
4C- - -a first shaft hole; 4D- - -a circular arc surface; 5- -a connecting rod;
5A- - -a movable groove; 5B- - -a second shaft hole; 5C- - -a fourth pivot axis;
6- - -a pendulum bar; 6A- - -sliding connection inclined plane; 7- -a stop;
7A- - -lock groove; 7B- - -a third shaft hole; 8-a reset member one;
9- - -a second reset piece; 10- -a first bearing; 11 — a second bearing;
12- -a third bearing; 13- -fourth bearing; 14-a mounting seat;
14A- -boss.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples. Hereinafter, directional descriptions such as "up, down, left, right", "clockwise", "counterclockwise" and the like are used for facilitating understanding of the structure and the principle of the solution, and reference should be made to the direction in the drawings, and the structure and the function of the product component are not limited to the only direction.
The invention relates to an electronic lock capable of preventing knocking and unlocking, which comprises a lock catch 1, a lock shell 2, a power device 3, a rotating piece 4, a connecting rod 5, a swing rod 6, a stop dog 7, a first resetting piece 8 and a second resetting piece 9, wherein the power device, the rotating piece 4, the connecting rod 5, the swing rod 6, the stop dog 7, the first resetting piece 8 and the second resetting piece 9 are arranged in the lock shell 2.
The lock shell 2 is provided with a lock hole 2A;
the middle part of the rotating part 4 is rotationally connected with the lock shell 2, and a convex block 4B is arranged on the rotating part; the power device 3 is used for driving the rotating part 4 to rotate;
the middle part of the connecting rod 5 is rotationally connected with the lock shell 2, one end of the connecting rod is movably matched with the lug 4B, and the other end of the connecting rod is provided with a movable groove 5A;
one end of the swing rod 6 is rotatably connected in the movable groove 5A;
the middle part of the stop block 7 is rotatably connected with the lock shell 2, one end of the stop block is arranged opposite to the other end of the swing rod 6, the other end of the stop block 7 is provided with a lock groove 7A, and the lock groove 7A is movably matched with the lock hole 2A along with the rotation of the stop block 7;
the lock catch 1 is movably matched with the lock hole 2A and is inserted into the lock groove 7A;
the first resetting piece 8 is arranged between the connecting rod 5 and the swing rod 6 so as to reset the swing rod 6 towards the direction of the stop block 7; when the lock catch 1 is inserted into the lock groove 7A, the stop block 7 is driven to rotate, one end of the stop block 7 pushes the other end of the swing rod 6 open, the first reset piece 8 enables the swing rod 6 to reset to push one end of the stop block 7, and the stop block 7 cannot rotate any more;
the second reset piece 9 is arranged between the stop 7 and the lock case 2, so that the lock slot 7A of the stop 7 is reset towards the lock hole 2A to expose the lock slot 7A for the lock catch 1 to insert.
Referring to fig. 1-9, a specific embodiment of the present invention is shown.
The power device 3 is a motor, and an output shaft of the power device is provided with a worm 3A; the rotating piece 4 is a cam, two ends of the rotating piece are respectively provided with a tooth wheel 4A and a convex block 4B, and the tooth wheel 4A is meshed with the worm 3A; the lock shell 2 is provided with a first pivot shaft 2B, the middle part of the cam is provided with a first shaft hole 4C, the first shaft hole 4C is sleeved on the first pivot shaft 2B, and a first bearing 10 is arranged between the first shaft hole 4C and the first pivot shaft 2B so as to realize the rotation connection of the cam and the lock shell 2, and the first bearing 10 can reduce the friction resistance between the cam and the first pivot shaft 2B so as to ensure the rotation of the cam to be smoother. The power device 3 adopts a motor, and the worm 3A is arranged on an output shaft of the power device, so that self-locking can be realized, the rotation of the cam in the vibration process caused by knocking the lockset can be limited, and knocking unlocking is further avoided.
The top end of the convex block 4B is set to be an arc surface 4D, one end of the connecting rod 5 matched with the convex block 4B is provided with a second bearing 11, the second bearing 11 is rotatably connected to the end of the connecting rod 5, and the second bearing 11 can reduce the frictional resistance between the connecting rod 5 and the rotating piece 4 (namely, the convex block 4B).
Above-mentioned lock shell 2 is provided with second pin joint axle 2C, and the middle part of connecting rod 5 is provided with second shaft hole 5B, and second shaft hole 5B cover is put on second pin joint axle 2C, and is provided with third bearing 12 between second shaft hole 5B and the second pin joint axle 2C to realize connecting rod 5 and lock shell 2's rotation and be connected, third bearing 12 can reduce the frictional resistance between connecting rod 5 and the second pin joint axle 2C, makes the rotation of connecting rod 5 more smooth and easy.
The lock shell 2 is provided with a third pivot shaft 2D, the middle part of the stop block 7 is provided with a third shaft hole 7B, and the third shaft hole 7B is sleeved on the third pivot shaft 2D so as to realize the rotation connection of the stop block 7 and the lock shell 2.
The movable groove 5A is provided with a fourth pivot shaft 5C, and one end of the swing rod 6 is sleeved on the fourth pivot shaft 5C so as to realize the rotating fit of the swing rod 6 and the connecting rod 5.
The other end of the swing rod 6 is provided with a sliding connection inclined plane 6A. Because the sizes of products are different, the positions of the connecting rod 5 and the swing rod 6 are possibly different, and the force of the stop block 7 on the sliding connection inclined plane 6A is always perpendicular to the sliding connection inclined plane 6A, in order to ensure that the limiting function is realized, the angle of the sliding connection inclined plane 6A is set as long as the direction of the force is ensured to be positioned between the second pivot shaft 2C and the fourth pivot shaft 5C.
The end part of the stop block 7 opposite to the swing rod 6 is provided with a fourth bearing 13, the fourth bearing 13 is rotatably connected to the end part of the stop block 7, the fourth bearing 13 can reduce the friction resistance between the stop block 7 and the swing rod 6, the fourth bearing 13 is in sliding fit with the sliding connection inclined plane 6A, when the connecting rod 5 is rotatable, the fourth bearing 13 upwards pushes the sliding connection inclined plane 6A along with the rotation of the stop block 7, so that the swing rod 6 drives the connecting rod 5 to swing and move away, and the stop block 7 can rotate to realize that the lock catch 1 is separated from the lock groove 7A.
The invention further comprises a mounting 14 arranged in the lock housing 2, which mounting 14 is intended for mounting the power unit 3. In this embodiment, a boss 14A for the protrusion 4B to engage is disposed at an angle of the mounting seat 14 opposite to the rotating component 4, and the boss 14A is used for limiting the protrusion 4B to limit the rotating angle of the rotating component 4.
The lock shell 2 is provided with a limiting column 2E which is arranged opposite to the stop dog 7 and used for limiting the maximum reset angle of the stop dog 7 so as to prevent the stop dog 7 from excessively rotating under the action of the second reset piece 9 and breaking away from the corresponding working position.
Of the two side walls of the lock groove 7A, the end close to the lock catch 1 is shorter, so that the stopper 7 is reset and the end swings upward as far as possible away from the lock hole 2A, the lock groove 7A is exposed, and the lock catch 1 can be inserted.
According to the direction in the attached drawing, lockhole 2A sets up the left side at lock shell 2, power device 3 installs the right side in lock shell 2, the pin joint department (being first pin joint axle 2B) of rotation piece 4 sets up the top at worm 3A, the pin joint department (being second pin joint axle 2C) of connecting rod 5 sets up the top at power device 3, pendulum rod 6 sets up the left end at connecting rod 5, the pin joint department (being fourth pin joint axle 5C) of dog 7 sets up the top at lockhole 2A and is located the left side of power device 3, space in lock shell 2 has been utilized as far as possible in such direction design, realize the reduction design of product volume.
The first reset piece 8 and the second reset piece 9 can adopt elastic mechanisms such as a torsion spring, a tension spring and the like
Referring to fig. 6 and 7, the locking principle of the present invention is as follows:
the lock catch 1 is inserted into the lock hole 2A to drive the stop block 7 to rotate, the fourth bearing 13 arranged on the stop block 7 pushes the swing rod 6 open, when the lock catch 1 is pushed to the bottom, the swing rod 6 rebounds to the bottom under the action of the first reset piece 8, at the moment, the fourth bearing 13 is stopped on the side surface of the swing rod 6, the lock catch 1 cannot be pulled out, and the locking is completed; when trying to extract the hasp 1, fourth bearing 13 on the dog 7 can make pendulum rod 6 have the trend around self axis of rotation anticlockwise rotation, but because the limiting displacement of connecting rod 5, pendulum rod 6 has arrived extreme position, can not turn around self axis of rotation anticlockwise rotation again, can regard pendulum rod 6 and connecting rod 5 as a whole this moment, in addition, fourth bearing 13 on the dog 7 lets connecting rod 5 have the trend around self axis of rotation clockwise rotation through pendulum rod 6, but second bearing 11 on the connecting rod 5 has been blocked by the lug 4B of cam, connecting rod 5 can not turn clockwise again, consequently, at this moment, can not extract hasp 1.
Referring to fig. 8 and 9, the unlocking principle of the present invention is as follows:
the motor rotates clockwise to drive the cam to rotate anticlockwise, the boss 14A of the mounting seat 14 has a limiting effect, the cam does not rotate after rotating to a limit position, the motor can block the rotation for a period of time, at the moment, under the action of the reset piece II 9, the check block 7 can push the swing rod 6 and the connecting rod 5 to rotate clockwise together through the fourth bearing 13, in the rotating process, due to the action of the reset piece I8, the swing rod 6 is always attached to the connecting rod 5, the swing rod 6 moves relative to the connecting rod 5, after the swing rod 6 and the connecting rod 5 do not rotate clockwise for a certain angle, the swing rod 6 does not have the limiting effect on the check block 7, at the moment, the check block 7 can continue to rotate clockwise to push the lock catch 1 out to realize unlocking, the limiting column 2E on the lock shell 2 has the limiting effect on the check block 7, the actions can be completed in the motor blocking period, after the motor blocks the rotation for a certain time, the cam is driven to rotate clockwise by reverse rotation, and when the cam stops at the limit position, the system stops supplying power to the motor after the motor stalls for a certain time, so that unlocking is completed, and the lockset recovers to a state of waiting for next locking.
Through the scheme, the elastic force of the first resetting piece 8 can be designed according to requirements, the driving force of the power device 3 required by unlocking cannot be influenced by the elastic force of the first resetting piece 8, and when the elastic force of the first resetting piece 8 is designed to be large enough, the problem that the oscillating bar 6 tilts to unlock due to knocking vibration can be completely avoided; compared with other electronic locks of express cabinets, the electronic lock has the greatest advantage of preventing knocking unlocking, and has the advantages of other electronic locks of express cabinets: simple structure, can be unlocked when being electrified, and can be locked when being closed at any time.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (10)
1. An electronic lock capable of preventing knocking and unlocking is characterized in that:
the lock comprises a lock catch, a lock shell, and a power device, a rotating part, a connecting rod, a swing rod, a stop block, a first resetting part and a second resetting part which are arranged in the lock shell;
the lock shell is provided with a lock hole;
the middle part of the rotating part is rotationally connected with the lock shell, and a lug is arranged on the rotating part; the power device is used for driving the rotating piece to rotate;
the middle part of the connecting rod is rotatably connected with the lock shell, one end of the connecting rod is movably matched with the lug, and the other end of the connecting rod is provided with a movable groove;
one end of the swing rod is rotatably connected in the movable groove;
the middle part of the stop block is rotatably connected with the lock shell, one end of the stop block is arranged opposite to the other end of the oscillating bar, the other end of the stop block is provided with a lock groove, and the lock groove is movably matched with the lock hole along with the rotation of the stop block;
the lock catch is movably matched with the lock hole and inserted into the lock groove;
the first resetting piece is arranged between the connecting rod and the swing rod so as to enable the swing rod to reset towards the direction of the stop block; when the lock catch is inserted into the lock groove, the stop block is driven to rotate, one end of the stop block jacks the other end of the swing rod, the reset piece resets the swing rod again to jack one end of the stop block, and the stop block cannot rotate any more;
the second reset piece is arranged between the stop block and the lock shell, so that the lock groove of the stop block is reset towards the lock hole direction, and the lock groove is exposed to be inserted by the lock catch.
2. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the power device is a motor, and an output shaft of the power device is provided with a worm; the rotating piece is a cam, two ends of the rotating piece are respectively provided with a tooth and the lug, and the tooth is meshed with the worm; the lock shell is provided with a first pivot shaft, the middle part of the cam is provided with a first shaft hole, the first shaft hole is sleeved on the first pivot shaft, and a first bearing is arranged between the first shaft hole and the first pivot shaft.
3. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the top of lug sets up to the arc surface, the connecting rod with lug complex one end is provided with the second bearing, the second bearing swivelling joint is in on the tip of connecting rod.
4. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the lock shell is provided with a second pivot shaft, a second shaft hole is formed in the middle of the connecting rod, the second shaft hole is sleeved on the second pivot shaft, and a third bearing is arranged between the second shaft hole and the second pivot shaft.
5. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the lock shell is provided with a third pivot shaft, the middle part of the stop block is provided with a third shaft hole, and the third shaft hole is sleeved on the third pivot shaft.
6. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the movable groove is provided with a fourth pivot shaft, and one end of the swing rod is sleeved on the fourth pivot shaft.
7. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
and the other end of the swing rod is provided with a sliding connection inclined plane.
8. The electronic lock with knock-proof lock as recited in claim 7, further comprising:
the end part of the stop block opposite to the swing rod is provided with a fourth bearing, and the fourth bearing is rotatably connected to the end part of the stop block and is in sliding fit with the sliding inclined plane.
9. The electronic lock with knock-proof lock as claimed in claim 2, wherein:
the lock shell is characterized by further comprising a mounting seat arranged in the lock shell, and the mounting seat is used for mounting the motor; and a boss for matching the lug is arranged at one corner of the mounting seat opposite to the cam, and the boss is used for limiting the lug.
10. The electronic lock with knock-proof lock as claimed in claim 1, wherein:
the lock shell is provided with a limiting column which is arranged opposite to the stop block and used for limiting the maximum reset angle of the stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529302.8A CN113137140A (en) | 2021-05-14 | 2021-05-14 | Electronic lock capable of preventing knocking and unlocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529302.8A CN113137140A (en) | 2021-05-14 | 2021-05-14 | Electronic lock capable of preventing knocking and unlocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137140A true CN113137140A (en) | 2021-07-20 |
Family
ID=76817108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110529302.8A Pending CN113137140A (en) | 2021-05-14 | 2021-05-14 | Electronic lock capable of preventing knocking and unlocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458102A (en) * | 2022-01-11 | 2022-05-10 | 厦门美科安防科技股份有限公司 | Anti-knocking lock |
-
2021
- 2021-05-14 CN CN202110529302.8A patent/CN113137140A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458102A (en) * | 2022-01-11 | 2022-05-10 | 厦门美科安防科技股份有限公司 | Anti-knocking lock |
| CN114458102B (en) * | 2022-01-11 | 2023-01-10 | 厦门美科安防科技股份有限公司 | Anti-knocking lock |
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