CN212716222U - Passive lock with anti-theft function - Google Patents
Passive lock with anti-theft function Download PDFInfo
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- CN212716222U CN212716222U CN202021264266.4U CN202021264266U CN212716222U CN 212716222 U CN212716222 U CN 212716222U CN 202021264266 U CN202021264266 U CN 202021264266U CN 212716222 U CN212716222 U CN 212716222U
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Abstract
The utility model provides a passive lock with theftproof function, including the casing, be provided with the dead bolt hole on the casing to the main spring bolt that supplies active lock inserts, still includes day lock and ground lock, day lock, ground lock carry out locking motion or unblock motion in step, be provided with the locking recess on the ground lock, the inside link gear and the rotation connector that is provided with of casing, it is connected and control with the handle of passive lock to rotate the connector it locks motion or unblock motion to carry out locking motion to day lock, ground lock, link gear includes the latch segment, after locking motion is accomplished to day lock, ground lock, main spring bolt inserts drive behind the dead bolt hole link gear, so that the latch segment move to with locking recess joint is connected, so that ground lock, day lock can't remove. The utility model provides a world lock is locked when the initiative door is closed, and the spring bolt of world lock can not be withdrawed, and the security is higher, and it is effectual to prevent burglary.
Description
Technical Field
The utility model belongs to the technical field of the tool to lock, concretely relates to passive lock with theftproof function.
Background
Double doors, such as residential entry doors, have an active door (a door for regular ingress and egress) and a passive door (typically fixed but openable if desired). Passive locks on passive doors typically include an upper bolt and a lower bolt (i.e., the deadbolt of a top-to-bottom lock) that extend into the top or bottom of the doorframe to form a secure connection, and common lock elements, such as a deadbolt, bolt (or deadbolt), that are provided on the active lock of the active door and that extend into the passive lock to secure the double door when locked.
However, the heaven and earth lock of the traditional passive lock lacks of a locking function, and the anti-theft effect is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome shortcoming and not enough among the prior art, provide a passive lock with theftproof function, lock when the main door is closed heaven and earth, the spring bolt of heaven and earth lock can not be withdrawed, and the security is higher, and it is effectual to prevent burglary.
The utility model provides a technical scheme that its technical problem adopted is:
a passive lock with an anti-theft function comprises a shell, wherein a lock bolt hole is formed in the shell and used for a main lock bolt of an active lock to insert;
the lock also comprises a top lock and a ground lock, wherein the top lock and the ground lock synchronously perform locking movement or unlocking movement, and a locking groove is formed in the ground lock;
the casing is inside to be provided with link gear and to rotate the connector, it is connected and control with the handle of passive lock to rotate the connector it locks, ground lock and carries out locking movement or unblock motion, link gear includes the latch segment, after locking movement was accomplished to day lock, ground lock, main spring bolt inserts drive behind the latch hole link gear, so that the latch segment move to with locking recess joint is connected, so that ground lock, day lock can't remove.
Preferably, the link gear is still including sliding the setting and being in first transfer line in the casing, the one end of first transfer line stretches into the setting and is in the spring bolt is downthehole, the latch segment with first transfer line sliding connection, be provided with the elastic component on the latch segment, after lock, ground lock accomplished the locking motion, the elastic component is along with the slip of first transfer line and drive the latch segment move extremely with locking recess joint is connected.
Preferably, the first transmission rod slides linearly in a direction away from the bolt hole, a sliding groove is formed in the first transmission rod, the sliding groove is sequentially provided with a first sliding section, a second sliding section and a third sliding section in a segmented manner along the sliding direction of the first transmission rod, the first sliding section and the third sliding section are horizontally arranged, the horizontal plane of the first sliding section is higher than that of the third sliding section, the second sliding section is obliquely arranged, and the first sliding section, the second sliding section and the third sliding section sequentially slide below the locking block in the insertion process of the main bolt;
the locking block is arranged in the shell and is fixed in the horizontal direction, and the elastic piece is vertically arranged between the locking block and the shell;
after the top lock and the ground lock complete locking movement, the locking groove is located below the locking block, and the main spring bolt is inserted into the spring bolt hole and then the locking block is driven by the elastic piece to move downwards to be connected with the locking groove in a clamping mode.
Preferably, the linkage mechanism further comprises a second transmission rod, a first reset spring is arranged at the other end of the first transmission rod, an accommodating groove is formed in the second transmission rod corresponding to the other end of the first transmission rod, and when the main bolt exits from the bolt hole, the first reset spring enables the first transmission rod to reset, so that the locking block is separated from the locking groove.
As preferred, the day lock is provided with day lock transmission end and day lock tongue end, the ground lock is provided with ground lock transmission end and ground lock tongue end, the locking recess sets up on the ground lock, day lock transmission end, ground lock transmission end all with the transmission of rotating connector head is connected, day lock tongue end, ground lock tongue end stretch out the casing, day lock tongue end upward movement when carrying out locking movement, ground lock tongue end downward movement when carrying out locking movement.
Preferably, the inside gear train that still is provided with of casing, day lock drive end, ground lock drive end all pass through the gear train with the rotation connector transmission is connected, so that the control of transmission connector the day lock, ground lock carry out locking movement or unblock motion.
Preferably, the gear set includes a first gear, a second gear and a third gear, the top lock transmission end is provided with a first spur rack, the ground lock transmission end is provided with a second spur rack, the first gear is arranged on the rotation connector and rotates along with the rotation connector in the same direction, the second gear is respectively engaged with the first gear and the first spur rack, the third gear is arranged between the first spur rack and the second spur rack, and the third gear is respectively engaged with the first spur rack and the second spur rack;
rotate the connector and drive during anticlockwise rotation first straight rack upward movement second straight rack downward movement, drive when rotating the connector clockwise first straight rack downward movement second straight rack upward movement.
Preferably, be provided with on the rotation connector and promote the piece, be provided with the open slot on the first gear, promote the piece along with the rotation of rotating the connector move extremely with the both ends of open slot are inconsistent, so that it drives to rotate the connector first gear revolve.
Preferably, a second return spring is arranged on the rotary connector, and the second return spring is used for returning the rotary connector after the rotary connector rotates.
Preferably, the shell is further internally provided with an auxiliary spring, a protruding portion is arranged on the edge of the rotating connector, and when the rotating connector rotates clockwise, the protruding portion moves to be in contact with the auxiliary spring in a propping mode to form elastic force to reset the rotating connector.
Compared with the prior art, the beneficial effects of the utility model are that:
in the scheme, a lock tongue hole is formed in a shell of the passive lock, so that a main lock tongue of the active lock can be inserted, the rotary connector is connected with a handle of the passive lock and controls a top lock and a bottom lock of the passive lock to perform locking motion or unlocking motion, the linkage mechanism comprises a lock block, after the top lock and the bottom lock complete the locking motion, a locking groove in the bottom lock moves to a position corresponding to the lock block, after the main lock tongue is inserted into the lock tongue hole, the linkage mechanism is driven to enable the lock block to move to be connected with the locking groove in a clamping mode, and therefore the bottom lock and the top lock cannot move, the locking of the top lock and the bottom lock is completed, the safety is high, and the anti-theft effect is good; the linkage mechanism can be reset by the aid of the first reset spring, so that the locking block is separated from the locking groove, and locking of the top lock and the ground lock is released.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of the world locking of the utility model.
Fig. 3 is a schematic structural diagram of the first transmission rod of the present invention.
Fig. 4 is a schematic perspective view of the locking block of the present invention.
Wherein:
1-passive lock, 11-shell, 111-rotary connector, 1111-pushing block, 1112-lug, 112-first gear, 113-second gear, 114-third gear, 115-auxiliary spring, 116-blocking block, 117-second return spring, 12-day lock, 121-first straight rack, 13-ground lock, 131-second straight rack, 132-locking groove, 14-first transmission rod, 141-sliding groove, 1411-first sliding section, 1412-second sliding section, 1413-third sliding section, 142-first return spring, 15-locking block, 151-elastic piece, 16-second transmission rod and 161-accommodating groove;
2-active lock, 21-main bolt.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and the described embodiments are merely some embodiments, rather than all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to 4, the present embodiment discloses a passive lock 2 with a top-bottom lock 13 locking function, which includes a housing 11, a lock bolt hole (not shown) disposed on the housing 11 for inserting a main lock bolt 21 of the active lock 2, a top lock 12 and a bottom lock 13, wherein the top lock 12 and the bottom lock 13 synchronously perform a locking motion or an unlocking motion, and a locking groove 132 disposed on the bottom lock 13. Inside link gear and the rotation connector 111 of being provided with of casing 11, it is connected and control day lock 12 with the handle of passive lock 2 to rotate connector 111, ground lock 13 carries out locking movement or unblock motion, link gear includes latch segment 15, day lock 12, ground lock 13 accomplishes the locking movement after, main spring bolt 21 inserts drive link gear behind the latch hole, so that latch segment 15 moves to be connected with locking recess 132 joint, so that ground lock 13, day lock 12 can't remove, unless the unblock of active lock 2, the day lock 12 of passive lock 2, ground lock 13 can be in the locking state all the time, the security is higher, it is effectual to prevent burglary.
Preferably, in this embodiment, the linkage mechanism further includes a first transmission rod 14 slidably disposed in the housing 11, one end of the first transmission rod 14 extends into the lock tongue hole, the locking block 15 is slidably connected to the first transmission rod 14, an elastic member 151 is disposed on the locking block 15, and after the top lock 12 and the ground lock 13 complete the locking movement, the elastic member 151 drives the locking block 15 to move to be connected to the locking groove 132 in a clamping manner along with the sliding of the first transmission rod 14.
Specifically, in this embodiment, the first transmission rod 14 slides linearly in a direction away from the latch hole, the first transmission rod 14 is provided with a sliding groove 141, the sliding groove 141 is sequentially provided with a first sliding section 1411, a second sliding section 1412 and a third sliding section 1413 in a segmented manner along the sliding direction of the first transmission rod 14, the first sliding section 1411 and the third sliding section 1413 are both horizontally arranged, the horizontal plane of the first sliding section 1411 is higher than the horizontal plane of the third sliding section 1413, the second sliding section 1412 is obliquely arranged between the first sliding section 1411 and the third sliding section 1413, before the main latch 21 is inserted, the locking block 15 is attached to the first sliding section 1411, during the insertion of the main latch 21, the first sliding section 1411, the second sliding section 1412 and the third sliding section 1413 sequentially slide from below the locking block 15, because the locking block 15 is arranged inside the housing 11 and fixed in the horizontal direction, the elastic member 151 is vertically arranged between the locking block 15 and the housing 11, and the elastic member 151 is specifically a spring 151, the generated elastic force enables the locking block 15 to move downwards from the plane where the first sliding section 1411 is located to the plane where the third sliding section 1413 is located, the locking groove 132 is located below the locking block 15 after the locking movement of the day lock 12 and the ground lock 13 is completed, and after the main bolt 21 is completely inserted into the bolt hole, the elastic piece 151 drives the lower locking block 15 to just move downwards to be capable of completing clamping connection with the locking groove 132, so that the locking of the day lock 12 and the ground lock 13 is completed.
Preferably, in this embodiment, the linkage mechanism further includes a second transmission rod 16, the other end of the first transmission rod 14 is provided with a first return spring 142, the second transmission rod 16 is provided with a receiving groove 161 corresponding to the other end of the first transmission rod 14, and the first return spring 142 returns the first transmission rod 14 when the main bolt 21 exits the bolt hole, so that the locking block 15 is separated from the locking groove 132.
Specifically, in this embodiment, the first transmission rod 14 moves under the driving of the main lock tongue 21, one end of the first return spring 142 is gradually inserted into the receiving groove 161, the first return spring 142 is compressed under the combined action of the receiving groove 161 and the first transmission rod 14, when the main lock tongue 21 completely exits the passive lock 2, the first transmission rod 14 is retracted to the original position by the elastic force generated by the first return spring 142, and simultaneously the locking block 15 slides relative to the sliding groove 141, and the locking block 15 moves up from the plane where the third sliding section 1413 is located to the plane where the first sliding section 1411 is located, so that the locking block 15 is separated from the locking groove 132, the locking of the top lock 12 and the bottom lock 13 is released, and at this time, the top lock 12 may be performed. The unlocking movement of the ground lock 13.
Preferably, in this embodiment, a gear set is further disposed inside the housing 11, the top lock 12 is provided with a top lock 12 transmission end and a top lock 12 tongue end, the ground lock 13 is provided with a ground lock 13 transmission end and a ground lock 13 tongue end, the locking groove 132 is disposed on the ground lock 13, and the top lock 12 tongue end and the ground lock 13 tongue end extend out of the housing 11. The transmission end of the top lock 12 and the transmission end of the ground lock 13 are in transmission connection with the rotating connector 111 through gear sets, so that the transmission connectors control the top lock 12 and the ground lock 13 to perform locking movement or unlocking movement, the tongue end of the top lock 12 moves upwards when performing locking movement, and the tongue end of the ground lock 13 moves downwards when performing locking movement.
In this embodiment, the gear set includes a first gear 112, a second gear 113 and a third gear 114, the transmission end of the top lock 12 is provided with a first spur rack 121, the transmission end of the bottom lock 13 is provided with a second spur rack 131, the first gear 112 is arranged on the rotary connector 111, the rotary connector 111 is provided with a pushing block 1111, the first gear 112 is provided with an open slot, the pushing block 1111 moves to be abutted against the two ends of the open slot along with the rotation of the rotary connector 111, and the pushing block 1111 pushes the open slot to enable the rotary connector 111 to drive the first gear 112 to rotate in the same direction. The second gear 113 is respectively in external meshing connection with the first gear 112, the second gear 113 is also in meshing connection with the first straight rack 121, the third gear 114 is arranged between the first straight rack 121 and the second straight rack 131, and the third gear 114 is respectively in meshing connection with the first straight rack 121 and the second straight rack 131.
Through the connection relationship of the above gear sets, when the rotary connector 111 rotates anticlockwise, the first gear 112 rotates anticlockwise synchronously along with the rotary connector 111, the second gear 113 meshed with the first gear 112 rotates clockwise synchronously, the second gear 113 drives the first straight rack 121 to move upwards, the first rack moving upwards drives the third gear 114 to rotate anticlockwise, the second straight rack 131 moves downwards, the lock 12 gradually moves upwards to perform locking movement, and the ground lock 13 gradually moves downwards to perform locking movement; when the rotating connector 111 rotates clockwise, the first gear 112 rotates clockwise synchronously along with the rotating connector 111, the second gear 113 meshed with the first gear 112 rotates counterclockwise synchronously, the second gear 113 drives the first spur rack 121 to move downwards, the first spur rack moving downwards drives the third gear 114 to rotate clockwise, and then the second spur rack 131 moves upwards, so that the top lock 12 gradually moves downwards to perform unlocking movement, and the ground lock 13 gradually moves upwards to perform unlocking movement. The handle is turned, the locking or unlocking of the top lock 12 and the ground lock 13 is realized by turning the transmission relation between the connector 111 and the gear set, the operation is simple and fast, and the applicability is good.
Preferably, in this embodiment, a second return spring 117 is disposed on the rotary connector 111, and the second return spring 117 is used for returning the rotary connector 111 after the rotary connector 111 rotates. An auxiliary spring 115 is further arranged in the housing 11, a protrusion 1112 is arranged on the edge of the rotary connector 111, and when the rotary connector 111 rotates clockwise, the protrusion 1112 moves to be abutted against the auxiliary spring 115 to form elastic force to reset the rotary connector 111.
Specifically, in the present embodiment, a stop block 116 is disposed inside the housing 11 and beside the rotary connector 111, one end of the second return spring 117 abuts against one side of the stop block 116, and the other end of the second return spring 117 abuts against the other side of the stop block 116. When the handle is lifted, the rotary connector 111 rotates anticlockwise, the second return spring 117 rotates anticlockwise synchronously, one end of the second return spring 117 at the lower side generates interaction force with the blocking block 116 to generate elastic deformation, after the handle is released, the elastic deformation enables the second return spring 117 to rotate clockwise, the rotary connector 111 is driven to rotate clockwise synchronously, the handle moves back to the initial position along with the rotation, and the initial position is generally a horizontal position; and when the handle pushed down, rotate connector 111 clockwise and rotate, second reset spring 117 follows synchronous clockwise rotation, and second reset spring 117 is located the one end of upside and produces the interaction with stop block 116 and produce elastic deformation, loosens the handle after, and this elastic deformation makes second reset spring 117 anticlockwise rotation, and then drives and rotates connector 111 synchronous anticlockwise rotation, and the handle is followed and is rotated and shifts up and get back to initial position.
In addition, when the handle is pressed down, the rotary connector 111 rotates clockwise, the protrusion 1112 moves upwards to be abutted against the auxiliary spring 115, so that the auxiliary spring 115 is deformed, and after the handle is released, the elastic force of the auxiliary spring 115 pushes the protrusion 1112 to move downwards to drive the rotary connector 111 to rotate anticlockwise, so that the handle is reset.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A passive lock with anti-theft function comprises a shell, and is characterized in that a lock tongue hole is formed in the shell for a main lock tongue of an active lock to insert;
the lock also comprises a top lock and a ground lock, wherein the top lock and the ground lock synchronously perform locking movement or unlocking movement, and a locking groove is formed in the ground lock;
the casing is inside to be provided with link gear and to rotate the connector, it is connected and control with the handle of passive lock to rotate the connector it locks, ground lock and carries out locking movement or unblock motion, link gear includes the latch segment, after locking movement was accomplished to day lock, ground lock, main spring bolt inserts drive behind the latch hole link gear, so that the latch segment move to with locking recess joint is connected, so that ground lock, day lock can't remove.
2. The passive lock with the anti-theft function according to claim 1, wherein the linkage mechanism further comprises a first transmission rod arranged in the shell in a sliding manner, one end of the first transmission rod extends into the lock tongue hole, the locking block is connected with the first transmission rod in a sliding manner, an elastic piece is arranged on the locking block, and after the locking motion of the top lock and the ground lock is completed, the elastic piece drives the locking block to move to be connected with the locking groove in a clamping manner along with the sliding of the first transmission rod.
3. The passive lock with the anti-theft function according to claim 2, wherein the first transmission rod slides linearly in a direction away from the lock tongue hole, a sliding groove is formed in the first transmission rod, a first sliding section, a second sliding section and a third sliding section which are connected with each other are sequentially arranged in a segmented manner along the sliding direction of the first transmission rod, the first sliding section and the third sliding section are both horizontally arranged, the horizontal plane of the first sliding section is higher than that of the third sliding section, the second sliding section is obliquely arranged, and the first sliding section, the second sliding section and the third sliding section sequentially slide below the lock block in the insertion process of the main lock tongue;
the locking block is arranged in the shell and is fixed in the horizontal direction, and the elastic piece is vertically arranged between the locking block and the shell;
after the top lock and the ground lock complete locking movement, the locking groove is located below the locking block, and the main spring bolt is inserted into the spring bolt hole and then the locking block is driven by the elastic piece to move downwards to be connected with the locking groove in a clamping mode.
4. The passive lock with the anti-theft function according to claim 2 or 3, wherein the linkage mechanism further comprises a second transmission rod, a first return spring is arranged at the other end of the first transmission rod, an accommodating groove is arranged on the second transmission rod corresponding to the other end of the first transmission rod, and when the main lock tongue exits the lock tongue hole, the first return spring enables the first transmission rod to return so that the locking block is separated from the locking groove.
5. The passive lock with the anti-theft function according to any one of claims 1 to 3, wherein the top lock is provided with a top lock transmission end and a top lock tongue end, the ground lock is provided with a ground lock transmission end and a ground lock tongue end, the locking groove is formed in the ground lock, the top lock transmission end and the ground lock transmission end are in transmission connection with the rotating connector, the top lock tongue end and the ground lock tongue end extend out of the shell, the top lock tongue end moves upwards when performing the locking movement, and the ground lock tongue end moves downwards when performing the locking movement.
6. The passive lock with the anti-theft function according to claim 5, wherein a gear set is further arranged inside the housing, and the top lock transmission end and the ground lock transmission end are both in transmission connection with the rotary connector through the gear set, so that the rotary connector controls the top lock and the ground lock to perform locking movement or unlocking movement.
7. The passive lock with the anti-theft function according to claim 6, wherein the gear set comprises a first gear, a second gear and a third gear, the top lock transmission end is provided with a first spur rack, the ground lock transmission end is provided with a second spur rack, the first gear is arranged on the rotary connector and rotates along with the rotary connector in the same direction, the second gear is respectively engaged with the first gear and the first spur rack, the third gear is arranged between the first spur rack and the second spur rack, and the third gear is respectively engaged with the first spur rack and the second spur rack;
rotate the connector and drive during anticlockwise rotation first straight rack upward movement second straight rack downward movement, drive when rotating the connector clockwise first straight rack downward movement second straight rack upward movement.
8. The passive lock with anti-theft function as claimed in claim 7, wherein the rotating connector is provided with a pushing block, the first gear is provided with an open slot, and the pushing block moves to abut against two ends of the open slot along with the rotation of the rotating connector, so that the rotating connector drives the first gear to rotate.
9. The passive lock with anti-theft function according to claim 1, wherein a second return spring is disposed on the rotary connector, and the second return spring is used for returning the rotary connector after the rotary connector rotates.
10. The passive lock with anti-theft function according to claim 9, wherein an auxiliary spring is further disposed in the housing, a protrusion is disposed on an edge of the rotating connector, and when the rotating connector rotates clockwise, the protrusion moves to abut against the auxiliary spring to form an elastic force to reset the rotating connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264266.4U CN212716222U (en) | 2020-07-01 | 2020-07-01 | Passive lock with anti-theft function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264266.4U CN212716222U (en) | 2020-07-01 | 2020-07-01 | Passive lock with anti-theft function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212716222U true CN212716222U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021264266.4U Active CN212716222U (en) | 2020-07-01 | 2020-07-01 | Passive lock with anti-theft function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212716222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663857A (en) * | 2020-07-01 | 2020-09-15 | 希美克(广州)实业有限公司 | Passive lock with anti-theft function |
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2020
- 2020-07-01 CN CN202021264266.4U patent/CN212716222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663857A (en) * | 2020-07-01 | 2020-09-15 | 希美克(广州)实业有限公司 | Passive lock with anti-theft function |
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