CN106869631B - Electric control horseshoe-shaped bicycle lock with safety function - Google Patents
Electric control horseshoe-shaped bicycle lock with safety function Download PDFInfo
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- CN106869631B CN106869631B CN201710233392.XA CN201710233392A CN106869631B CN 106869631 B CN106869631 B CN 106869631B CN 201710233392 A CN201710233392 A CN 201710233392A CN 106869631 B CN106869631 B CN 106869631B
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- cam
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- groove
- lock
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B71/00—Locks specially adapted for bicycles, other than padlocks
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- 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
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- 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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
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- 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
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/0024—Cams
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Abstract
The invention discloses an electric control horseshoe-shaped bicycle lock with a safety function, which comprises a horseshoe-shaped upper shell and a horseshoe-shaped lower shell, wherein a lock body and a pull ring are arranged in the upper shell and the lower shell, a pull piece and a pull handle are arranged on one side of the upper shell and one side of the lower shell, and a pull spring groove, a locking groove and a safety groove are arranged on the pull ring; the lock body is internally provided with a speed reducing motor, a cam mechanism, a locking bolt, a safety bolt, a control module, a catch and a button elastic sheet. According to the electric control horseshoe-shaped bicycle lock with the safety function, the cam mechanism is driven by the speed reducing motor, so that the safety lock tongue and the locking lock tongue can limit the pull ring when the pull ring is in different use states, the safety lock tongue can fall into the safety groove in the pull ring in an unlocking state, a user or other people cannot lock the bicycle conveniently, and the use safety is improved; under the locking state, the locking spring bolt is limited by the baffle plate and can not be opened by external force, so that the anti-theft performance of the bicycle lock is improved.
Description
Technical Field
The invention belongs to the field of bicycle locks, and particularly relates to an electric control horseshoe-shaped bicycle lock with a safety function.
Background
Bicycle lock plays the effect of bicycle theftproof, bicycle lock on sale on the market adopts traditional mechanical lock mostly, open through the key when unblanking, and U-shaped bicycle lock is the bicycle lock utensil of commonly used, U-shaped bicycle lock generally by the lock shell, the catch extension spring, the lock body, the spring bolt etc. the theftproof performance of this kind of bicycle lock is not too good, the thief can unblank through the lockhole, and because the catch is can free activity, under the state of unblanking, the catch still can be easily pulled to the shutting position, the user has certain risk when using. Some electronic control horseshoe-shaped vehicle locks also appear in the market, but the locks are unlocked only by driving the lock tongues to move through a first-stage simple cam, and the locks are easy to open under the condition of receiving external force, and no electronic safety is arranged, so that certain risks exist when the locks are used by users.
Disclosure of Invention
The invention provides an electric control horseshoe-shaped bicycle lock with a safety function, which has better anti-theft performance, can prevent a user from locking the bicycle conveniently in an unlocking state, can not be unlocked by external force in a locking state, and increases safety and anti-theft performance.
The technical scheme adopted by the invention is as follows:
the utility model provides an automatically controlled area insurance function's horseshoe bicycle lock, includes the epitheca and the inferior valve of horseshoe the epitheca with be equipped with lock body and pull ring in the inferior valve, be equipped with the visor on the lock body the epitheca with one side of inferior valve is equipped with pulling-on piece and pull handle, wherein:
the pull ring is provided with a locking groove and a safety groove;
the lock body is internally provided with:
a reduction motor;
the control module is arranged in the lock body and electrically connected with the speed reducing motor, a touch switch is arranged on the control module, and the control module is used for receiving and feeding back an unlocking signal and a locking signal;
the cam mechanism is connected with an output shaft of the speed reducing motor, the speed reducing motor drives the cam mechanism to axially move along the cam mechanism, and a first-stage cam, a second-stage cam, a third-stage cam and a fourth-stage cam are arranged on the cam mechanism;
the angle of the tertiary cam and the quaternary cam at the maximum stroke is 180 degrees;
the key elastic sheet is arranged on the control module and is positioned above the tact switch, the tact switch is pressed down through the pressing of the key elastic sheet, and the control module sends an electric signal to control the rotation angle of the cam mechanism;
the locking spring bolt is arranged on the three-level cam, the three-level cam drives the locking spring bolt to move up and down along the locking groove, and a groove is formed in the locking spring bolt;
the safety lock tongue is arranged on the four-level cam, and the four-level cam drives the safety lock tongue to move up and down along the safety groove;
the catch is arranged below the second-stage cam and the third-stage cam, the fixed end of the catch is fixed on the lock body, the catch can axially rotate along the fixed end, a torsion spring is arranged on the catch, one tangential foot of the torsion spring abuts against the catch, the other tangential foot of the torsion spring abuts against the lock body, a hook is arranged on the catch, and the hook abuts against the groove under the action of the torsion spring when the locking spring bolt is positioned in the locking groove; the hook is separated from the groove by pressing the blocking piece downwards through the rotation of the secondary cam, at the moment, the locking spring bolt is pushed out of the locking groove by the tertiary cam, and the locking spring bolt presses the blocking piece to the button elastic piece to send an unlocking signal;
the key elastic piece is provided with an elastic piece short foot and an elastic piece long foot, when the elastic piece short foot and the elastic piece long foot are pressed down, the control module can send out an electric signal to control the rotation angle of the cam mechanism, the one-level cam can be connected with or separated from the elastic piece short foot through the rotation of the cam mechanism, and the blocking piece is connected with or separated from the elastic piece long foot through the up-and-down reciprocating motion of the locking spring bolt.
Furthermore, the locking bolt is sleeved with a first spring, and is pushed out of the locking groove through rotation of the three-level cam, or is pressed into the locking groove through pre-pressure of the first spring.
Furthermore, a second spring is sleeved on the safety lock tongue, the safety lock tongue is pushed out of the safety groove through rotation of the four-level cam, or the safety lock tongue is pressed into the safety groove through pre-pressure of the second spring.
After the technical scheme is adopted, the horseshoe-shaped bicycle lock with the safety function is used for the anti-theft locking of a bicycle, the cam mechanism is driven by the gear motor, the locking spring bolt and the safety spring bolt in the cam mechanism can limit the pull ring when the pull ring is in different use states, the safety spring bolt can fall into the safety groove on the pull ring after the pull ring is reset and unlocked in the unlocking state, the pull ring is limited by the safety spring bolt at the current position and can not move under the condition that the gear motor does not receive a locking signal, a user or other people can not conveniently lock the bicycle, the use safety is improved, the locking spring bolt enters the locking groove and is limited by the baffle plate and can not be unlocked through external force in the locking state, the anti-theft performance of the bicycle lock is improved in the locking state, if the unlocking signal is required to be obtained, the hook on the baffle plate is rotated by the second cam to be separated from the groove in the spring bolt, the locking bolt can be disengaged from the restraint to unlock the lock.
Drawings
FIG. 1 is an overall schematic view of the horseshoe-shaped bicycle lock with safety function according to the present invention;
FIG. 2 is a schematic diagram of the locking state of the present invention;
FIG. 3 is a schematic of the insurance state of the present invention;
FIG. 4 is a schematic illustration of the arming of the present invention;
FIG. 5 is a perspective view of the cam mechanism of the present invention;
FIG. 6 is a perspective view of another perspective of the cam mechanism of the present invention;
FIG. 7 is a front view of the cam mechanism of the present invention;
FIG. 8 is a right side view of the cam mechanism of the present invention;
FIG. 9 is a perspective view of a key dome of the present invention;
FIG. 10 is a schematic cross-sectional view of the second cam, the third cam, the key dome and the catch;
FIG. 11 is a schematic cross-sectional view of the locking bolt, the catch, and the three-stage cam;
fig. 12 is a schematic view of a locking bolt.
In the figure: 1-upper shell 2-lower shell 3-protective cover 4-lock body 41-gear motor 42-cam mechanism 421-first-stage cam 422-second-stage cam 423-third-stage cam 424-fourth-stage cam 43-locking bolt 431-groove 44-safety bolt 45-control module 46-button spring piece 461-spring piece short foot 462-spring piece long foot 471-first spring 472-second spring 48-catch 481-hook 49-torsion spring 5-pull ring 51-pull ring groove 52-locking groove 53-safety groove 6-pull ring 7-pull handle 8-reset tension spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, an automatically controlled horseshoe bicycle lock of taking insurance function, epitheca 1 and inferior valve 2 including the horseshoe, be equipped with lock body 4 and pull ring 5 in epitheca 1 and inferior valve 2, be equipped with visor 3 on lock body 4, visor 3 guarantees that the spare part inside lock body 4 does not receive external erosion, damage, improve lock barrier propterty, be equipped with pulling-on piece 6 and pull handle 7 in one side of epitheca 1 and inferior valve 2, be equipped with pull spring groove 51 on pull ring 5, locking recess 52 and insurance recess 53, install the extension spring 8 that resets between pull ring 5 and the epitheca, the one end of extension spring 8 that resets is installed on pull spring groove 51, the other end is fixed on lock body 4, extension spring 8 that resets can drive pull ring 5 makes pull ring 5 carry out the action that resets.
A speed reducing motor 41, a cam mechanism 42, a locking bolt 43, a safety bolt 44, a control module 45, a key elastic sheet 46, a catch 48 and a torsion spring 49 are installed in the lock body 4, the control module 45 is installed at one side in the lock body 4, a tact switch (the tact switch is not marked in the figure) is arranged in the control module 45, the key elastic sheet 46 is installed on the control module 45, the key elastic sheet 46 is positioned above the tact switch, the tact switch can be pressed by the key elastic sheet 46 under the action of the cam mechanism 42 and the catch 48, so that the control module 45 sends an electric signal to control the operation of the speed reducing motor and further control the rotation angle of the cam mechanism 42, and the key elastic sheet 46 is provided with an elastic sheet long foot 462 and an elastic sheet short foot 461; an output shaft of the speed reducing motor 41 is connected with the cam mechanism 42, the speed reducing motor 41 drives the cam mechanism 42 to move axially along the cam mechanism 42, the locking bolt 43 and the safety bolt 44 are installed on the cam mechanism 42, the blocking piece 48 and the torsion spring 49 are installed below the cam mechanism 42, the fixed end of the blocking piece 48 is fixed on the lock body 4, the blocking piece 48 can rotate axially along the fixed end, one tangential foot of the torsion spring 49 abuts against the blocking piece 48, the other tangential foot of the torsion spring 49 abuts against the lock body 4, and the blocking piece 48 is provided with a hook 481; a groove 431 is formed in the upper locking bolt 43, a first spring 471 is sleeved on the upper locking bolt 43, and a second spring 472 is sleeved on the safety bolt 44;
as shown in fig. 5, 6, 7 and 8, in the present invention, the cam mechanism 42 is provided with a first-stage cam 421, a second-stage cam 422, a third-stage cam 423 and a fourth-stage cam 424, and the catch 48 and the torsion spring 49 are provided below the second-stage cam 422 and the third-stage cam 423, wherein:
the first-stage cam 421 is a rotation angle control cam of the speed reducing motor 41, the first-stage cam 421 is matched with the spring short foot 461 on the key spring 46, when the cam mechanism 42 rotates to a certain angle, the first-stage cam 421 can be connected with or separated from the key spring 46, the key spring 46 presses the tact switch on the control module 45 to send out a corresponding signal, and the rotation angle of the cam mechanism 42 can be determined by the rising and falling of the key signal;
the secondary cam 422 is a limiting cam of the locking bolt 43, when the locking bolt 3 falls into the locking groove 52 in the pull ring 5, the catch 48 below the secondary cam 422 is jacked up by the torsion spring 49, and the hook 481 on the catch 48 can hook the groove 431 of the locking bolt 43, so that the locking bolt 43 cannot be separated from the locking groove 52 on the pull ring 5 under the action of external force, and a locking safety effect is achieved;
the locking bolt 43 is installed on the third-level cam 423, the third-level cam 423 controls the locking bolt 43 to reciprocate up and down along the locking groove 52, meanwhile, the second-level cam 422 and the third-level cam 423 have a fixed angle, only when the speed reduction motor 41 moves in a certain direction, the second-level cam 422 presses the blocking piece 48 to unlock the locking bolt 43, and the locking bolt 43 can be separated from the locking groove 52 on the pull ring 5 to achieve the unlocking effect. After unlocking, the protrusion below the locking bolt 43 presses the blocking piece 48 to the lowest position, meanwhile, the blocking piece 48 presses the long spring piece leg 462 of the key spring piece 46, and when the long spring piece leg 462 is pressed, the tact switch on the control module 45 can be pressed down and an unlocking signal is sent;
the four-stage cam 424 is provided with the safety lock tongue 44, and the four-stage cam 424 controls the safety lock tongue 44 to reciprocate up and down along the safety groove 53.
The locking and unlocking operations of the horseshoe-shaped bicycle lock with an electric control safety function according to the present invention will be described with reference to fig. 2, 3 and 4:
locking, before locking, the bicycle lock is in a safe state, that is, the safety lock tongue 44 is located in the safety groove 53 of the pull ring 5, after receiving a locking signal, the decelerating motor 41 starts to rotate, the decelerating motor 41 drives the cam mechanism 42 to rotate, the four-stage cam 424 pushes the safety lock tongue 44 to move upwards along the safety groove 53 until the safety lock tongue is separated from the safety groove 53, the one-stage cam 421 on the cam mechanism 42 rotates to a certain angle, when the one-stage cam 421 is separated from the short leg 461 of the pressed button spring 46, the decelerating motor 41 stops rotating, the pull tab 6 and the pull ring 5 are driven by the pull handle 7 to make the pull ring 5 be in a locking position, at this time, the locking lock tongue 43 will fall into the locking groove 52 in the pull ring 5 under the action of the first spring 471, when the catch 48 below the two-stage cam 422 is pushed up by the torsion spring 49, the hook 481 on the catch 48 can hook the locking groove 431 on the lock tongue 43, so that the locking bolt 43 can not be separated from the locking groove 52 on the pull ring 5 under the action of external force, thereby playing the role of locking safety.
As can be seen from the above, in the locked state, the locking tongue 43 is located in the locking groove 52, the hook 481 on the catch 48 hooks the groove 431 on the locking tongue 43 by the torsion spring 49, when the decelerating motor 41 receives the unlocking command, the decelerating motor 41 rotates to rotate the cam mechanism 42 by 180 °, the catch 48 is pressed by the secondary cam 422, the hook 481 on the catch 48 is disengaged from the groove 431 on the locking tongue 43, the locking tongue 43 is disengaged from the catch 48, and when the cam mechanism 42 rotates clockwise again, the locking tongue 43 moves upward along the locking groove 52 by the three-stage cam 423, at this time, the locking tongue 43 is pushed upward by the three-stage cam 423 on the cam mechanism 42, which corresponds to that the locking tongue 43 is opened to complete the unlocking, the pull ring 5 operates by the return tension spring 8, at this time, the safety tongue 44 is pushed downward by the second spring 472 to enter the pre-position, when the pull ring 5 is pulled to a certain position by the reset tension spring 8 to unlock, the safety lock tongue 44 falls into the safety groove 53 on the pull ring 5, at the moment, the pull ring 5 is fixed by the safety lock tongue 44, and a user cannot lock the vehicle conveniently.
The invention relates to an electric control horseshoe-shaped bicycle lock with a safety function, which can control locking and unlocking through signals, and ensure that a pull ring 5 can be protected by a safety device in an unlocking state and a locking state, a cam mechanism 42 is driven by a speed reducing motor 41, so that a locking bolt 43 and a safety bolt 44 in the lock mechanism can limit the pull ring 5 when the pull ring 5 is in different use states, the safety bolt 44 can fall into a safety groove 53 on the pull ring 5 after the pull ring 5 is reset and unlocked in the unlocking state, the pull ring 5 is limited by the safety bolt 44 to be immovable in the current position under the condition that the speed reducing motor does not receive a locking signal, a user or other people can not conveniently lock the bicycle, and the locking bolt 43 enters a locking groove 52 and is limited by a baffle plate 48 to be prevented from being opened through external force under the locking state, so that the anti-theft performance of the bicycle lock is increased, the safety of the user in the use process is guaranteed.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the scope of the present invention.
In the description of the present invention, it should be noted that if words such as "primary", "secondary", "first", "second", etc. are used herein to define parts, those skilled in the art should understand that: the use of the terms "primary," "secondary," etc. are used merely to facilitate the description of the invention and to simplify the description, and if not otherwise stated, the terms have no special meaning.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides an automatically controlled area insurance function's horseshoe bicycle lock, includes the epitheca and the inferior valve of horseshoe the epitheca with be equipped with lock body and pull ring in the inferior valve, be equipped with the visor on the lock body the epitheca with one side of inferior valve is equipped with pulling-on piece and pull handle, its characterized in that:
the pull ring is provided with a locking groove and a safety groove;
the lock body is internally provided with:
a reduction motor;
the control module is arranged in the lock body and electrically connected with the speed reducing motor, a touch switch is arranged on the control module, and the control module is used for receiving and feeding back an unlocking signal and a locking signal;
the cam mechanism is connected with an output shaft of the speed reducing motor, the speed reducing motor drives the cam mechanism to axially move along the cam mechanism, and a first-stage cam, a second-stage cam, a third-stage cam and a fourth-stage cam are arranged on the cam mechanism;
the key elastic sheet is arranged on the control module and is positioned above the tact switch, the tact switch is pressed down through the pressing of the key elastic sheet, and the control module sends an electric signal to control the rotation angle of the cam mechanism;
the locking spring bolt is arranged on the three-level cam, the three-level cam drives the locking spring bolt to move up and down along the locking groove, and a groove is formed in the locking spring bolt;
the safety lock tongue is arranged on the four-level cam, and the four-level cam drives the safety lock tongue to move up and down along the safety groove;
the angle of the tertiary cam and the quaternary cam at the maximum stroke is 180 degrees;
the catch is arranged below the second-stage cam and the third-stage cam, the fixed end of the catch is fixed on the lock body, the catch can axially rotate along the fixed end, a torsion spring is arranged on the catch, one tangential foot of the torsion spring abuts against the catch, the other tangential foot of the torsion spring abuts against the lock body, a hook is arranged on the catch, and the hook abuts against the groove under the action of the torsion spring when the locking spring bolt is positioned in the locking groove; the hook is separated from the groove by pressing the blocking piece downwards through the rotation of the secondary cam, at the moment, the locking spring bolt is pushed out of the locking groove by the tertiary cam, and the locking spring bolt presses the blocking piece to the button elastic piece to send an unlocking signal;
the key elastic piece is provided with an elastic piece short foot and an elastic piece long foot, when the elastic piece short foot and the elastic piece long foot are pressed down, the control module can send out an electric signal to control the rotation angle of the cam mechanism, the one-level cam can be connected with or separated from the elastic piece short foot through the rotation of the cam mechanism, and the blocking piece is connected with or separated from the elastic piece long foot through the up-and-down reciprocating motion of the locking spring bolt.
2. The electric control horseshoe bicycle lock with safety function of claim 1, characterized in that: the locking bolt is sleeved with a first spring, and is pushed out of the locking groove through rotation of the three-level cam, or is pressed into the locking groove through pre-pressure of the first spring.
3. The electric control horseshoe bicycle lock with safety function of claim 1, characterized in that: the safety lock tongue is sleeved with a second spring, the safety lock tongue is pushed out of the safety groove through rotation of the four-level cam, or the safety lock tongue is pressed into the safety groove through pre-pressure of the second spring.
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CN201710233392.XA CN106869631B (en) | 2017-04-11 | 2017-04-11 | Electric control horseshoe-shaped bicycle lock with safety function |
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CN201710233392.XA CN106869631B (en) | 2017-04-11 | 2017-04-11 | Electric control horseshoe-shaped bicycle lock with safety function |
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CN106869631A CN106869631A (en) | 2017-06-20 |
CN106869631B true CN106869631B (en) | 2022-02-08 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107327225A (en) * | 2017-07-06 | 2017-11-07 | 浙江中立集团有限公司 | A kind of electromagnetism horseshoe lock |
CN109750905B (en) * | 2017-11-03 | 2021-11-12 | 比亚迪股份有限公司 | Lockset and bicycle |
CN107893580A (en) * | 2017-12-19 | 2018-04-10 | 浙江中立集团有限公司 | A kind of shared bicycle smart lock |
TWM567725U (en) * | 2018-07-18 | 2018-10-01 | 源文興工業股份有限公司 | Senseable lock structure of bicycle |
CN109250014B (en) * | 2018-11-08 | 2024-05-10 | 上海钧正网络科技有限公司 | Car locking device, car lock with safety function and car |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2068129U (en) * | 1990-02-28 | 1990-12-26 | 冯铭 | Double safety anti-stealing bicycle lock |
CN2106211U (en) * | 1991-12-03 | 1992-06-03 | 自贡制锁厂 | Double safety lock for bicycle |
DE102015113082A1 (en) * | 2015-08-07 | 2017-02-09 | Trelock Gmbh | Electronic lock |
CN206753266U (en) * | 2017-04-11 | 2017-12-15 | 南京迅之蜂智能科技有限公司 | The horseshoe-shaped bicycle lock of electric control belt insurance function |
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2017
- 2017-04-11 CN CN201710233392.XA patent/CN106869631B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2068129U (en) * | 1990-02-28 | 1990-12-26 | 冯铭 | Double safety anti-stealing bicycle lock |
CN2106211U (en) * | 1991-12-03 | 1992-06-03 | 自贡制锁厂 | Double safety lock for bicycle |
DE102015113082A1 (en) * | 2015-08-07 | 2017-02-09 | Trelock Gmbh | Electronic lock |
CN206753266U (en) * | 2017-04-11 | 2017-12-15 | 南京迅之蜂智能科技有限公司 | The horseshoe-shaped bicycle lock of electric control belt insurance function |
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