CN210342983U - Lock body and automatic locking and unlocking mechanism thereof - Google Patents
Lock body and automatic locking and unlocking mechanism thereof Download PDFInfo
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- CN210342983U CN210342983U CN201920997488.8U CN201920997488U CN210342983U CN 210342983 U CN210342983 U CN 210342983U CN 201920997488 U CN201920997488 U CN 201920997488U CN 210342983 U CN210342983 U CN 210342983U
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Abstract
The utility model discloses an automatic locking and unlocking mechanism of lock body, at the in-process of closing the door, the scissors tongue is pushed down simultaneously with the detection tongue. When the scissor tongue enters the door frame and is popped out, the self-locking trigger block moves upwards under the action of the self-locking return spring to drive the self-locking connecting rod to move together. When the self-locking connecting rod is separated from the limit matching with the main spring bolt, the main spring bolt automatically extends out under the action of the main spring bolt torsion spring to complete the door closing action. Its advantage does: 1) the main spring bolt automatically pops out after the door is closed, so that the door is simple and convenient; 2) the scissor tongue and the detection tongue are simultaneously popped, the main lock tongue cannot be popped, and the situation of false spring hiding cannot occur; 3) the ejection is more effective, the product stability is improved, and the service life is longer. The utility model also provides an use above-mentioned automatic release mechanism's lock body.
Description
Technical Field
The utility model relates to a lock body technical field, in particular to lock body and automatic locking and unlocking mechanism thereof.
Background
As an intelligent household product, the intelligent door lock has entered the developed express way, and the convenience, safety and technological sense of use of the intelligent door lock gradually get the approval and favor of consumers.
The intelligent door lock in the existing market is basically a double-fast lock body, and a handle is required to be lifted up to lock the door after the door is closed, so that the experience feeling is poor. People strongly demand a product which can be automatically locked after the door is closed, and the use is simpler and more convenient.
The stability of the self-eject lock body in the prior art still needs to be promoted:
1) the probability of false-masking error bounce is high, namely, the detection tongue and the scissors tongue are simultaneously pressed and then simultaneously popped, and the main lock tongue is released;
2) the assembly is difficult, and the stability is poor;
3) the ejection force is small, and the situation that the cartridge cannot be ejected often occurs.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides an automatic locking and unlocking mechanism for a lock body, which is characterized in that a main lock tongue automatically pops out after the door is closed; false-masking and false-bouncing are prevented; ejection effectiveness, increasing product stability.
The utility model provides an use above-mentioned automatic release mechanism's lock body.
In order to achieve the above object, the utility model provides a following technical scheme:
an automatic locking and unlocking mechanism for a lock body comprises: the scissors tongue support frame, the self-locking trigger block, the trigger block reset mechanism, the self-locking connecting rod, the connecting rod reset mechanism and the main lock tongue;
the self-locking connecting rod and the main lock tongue are provided with matched limiting structures; the self-locking connecting rod is connected to the self-locking trigger block through the connecting rod resetting mechanism, and the connecting rod resetting mechanism can provide restoring force for the self-locking connecting rod to be in limit fit with the main spring bolt;
the self-locking trigger block has two states: in the first position, the self-locking trigger block enables the self-locking connecting rod to be in limit fit with the main lock tongue; in the second position, the self-locking trigger block enables the self-locking connecting rod to be separated from the limit fit with the main lock tongue;
the trigger block reset mechanism can provide restoring force for the self-locking trigger block to enable the self-locking trigger block to be tangential from a first position to a second position, the self-locking trigger block can be limited by the scissor tongue supporting frame in a pressed state at the first position, and the scissor tongue supporting frame in a completely ejected state can allow the self-locking trigger block to be cut to the second position.
Preferably, the trigger block reset mechanism is a self-locking reset spring.
Preferably, the connecting rod resetting mechanism is a self-locking spring.
Preferably, the limit structure includes:
the main lock tongue groove is formed in the main lock tongue;
and the self-locking connecting rod sleeve is arranged at the tail end of the self-locking connecting rod and is in limit fit with the main spring bolt groove.
Preferably, the self-locking connecting rod sleeve is in rolling friction fit with the main bolt groove.
Preferably, the scissor tongue supporting frame is provided with a first surface, and the self-locking trigger block is provided with a second surface which is used for being in contact with the first surface in a limiting and matching mode.
Preferably, the movement direction of the scissor tongue supporting frame is perpendicular to the movement direction of the self-locking trigger block.
Preferably, the self-locking trigger block at the second position can limit the retraction of the scissor tongue support frame, and the main lock tongue can only be in limit fit with the self-locking connecting rod in a fully retracted state;
the automatic locking and unlocking mechanism of the lock body further comprises: and the unlocking shifting block can cut the self-locking trigger block from the second position to the first position.
Preferably, the limit structure includes:
the main spring bolt limiting part is arranged on the main spring bolt;
the connecting rod limiting part is arranged on the self-locking connecting rod and is used for limiting and matching with the main spring bolt limiting part;
and under the state that the main lock tongue is completely retracted, the main lock tongue limiting part is positioned in the motion track of the connecting rod limiting part; and under the condition that the main spring bolt is not completely retracted, the motion tracks of the main spring bolt limiting part and the connecting rod limiting part are staggered.
A lock body comprises the automatic locking and unlocking mechanism of the lock body.
According to the above technical scheme, the utility model provides an automatic locking and unlocking mechanism of lock body, its beneficial effect is:
1) the main spring bolt automatically pops out after the door is closed, so that the door is simple and convenient;
2) the scissor tongue and the detection tongue are pressed simultaneously and then popped out, the main spring bolt cannot pop out, and the situation of false spring hiding cannot occur;
3) the ejection is more effective, the product stability is improved, and the service life is longer.
The utility model also provides a lock body, owing to adopted foretell automatic unlocking mechanism, consequently it also has corresponding beneficial effect, specifically can refer to the preceding explanation, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an unlocking state of an automatic locking and unlocking mechanism of a lock body according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a locked state of a main lock tongue provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram illustrating a locking state of the automatic locking and unlocking mechanism of the lock body according to the embodiment of the present invention;
fig. 4 is a schematic structural view of a locking mechanism of a scissor bolt according to an embodiment of the present invention.
Wherein, 1 is a lower cover plate; 2 is a pressure spring support frame; 3 is a spring bolt pressure spring; 4 is a scissor tongue support frame, and 4-1 is a first surface; 5 is a scissor tongue; 6 is a self-locking trigger block, and 6-1 is a second surface; 7 is a detecting tongue supporting frame; 8 is the detection tongue; 9 is a self-locking connecting rod, and 9-1 is a self-locking connecting rod sleeve; 10 is an unlocking shifting block; 11 is a main bolt shifting block; 12 is a main bolt, 12-1 is a main bolt groove; 13 is a side bar; 14 is the main bolt torsion spring; 15 is a main bolt shifting block torsion spring; and 16 is a self-locking return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides an automatic locking and unlocking mechanism of lock body, include: the scissors tongue support frame 4, the self-locking trigger block 6, the trigger block reset mechanism, the self-locking connecting rod 9, the connecting rod reset mechanism and the main lock tongue 12; the structure of the lock can be shown in fig. 1, and all the components are arranged in a shell (such as a lower cover plate 1) of the lock body;
the self-locking connecting rod 9 and the main bolt 12 are provided with matched limit structures; the self-locking connecting rod 9 is connected to the self-locking trigger block 6 through a connecting rod resetting mechanism, and the connecting rod resetting mechanism can provide restoring force for limiting and matching the self-locking connecting rod 9 with the main bolt 12;
the self-locking trigger block 6 has two states: in the first position, the self-locking trigger block 6 enables the self-locking connecting rod 9 to be in limit fit with the main bolt 12; in the second position, the self-locking trigger block 6 enables the self-locking connecting rod 9 to be separated from the limit fit with the main bolt 12; when the self-locking trigger block 6 is switched between the first position and the second position, the self-locking connecting rod 9 is driven to move, so that the self-locking connecting rod 9 and the main bolt 12 form limit fit or are separated from the limit fit;
the trigger block reset mechanism can provide restoring force for the self-locking trigger block 6 to enable the self-locking trigger block 6 to be tangential to a second position from a first position, the scissor tongue support frame in a pressing state (including a fully pressing state and a partially pressing state), namely a virtual covering state), can limit the self-locking trigger block 6 at the first position, and the scissor tongue support frame 4 in a fully ejecting state (namely a non-virtual covering state) can allow the self-locking trigger block 6 to be cut to the second position.
Fig. 3 is a schematic diagram of the locked state. During the closing of the door, the scissor tongues 5 and the detection tongue 8 are pressed simultaneously. When the scissor tongue 5 enters the doorframe to pop out, the self-locking trigger block 6 in fig. 1 moves upwards under the action of the trigger block reset mechanism, and drives the self-locking connecting rod 9 to move together. When the self-locking connecting rod 9 is separated from the limit matching with the main bolt 12, the main bolt 12 automatically extends out under the action of the main bolt torsion spring 14, and the door closing action is completed.
According to the technical scheme, the lock body automatic locking and unlocking mechanism provided by the embodiment of the utility model has the advantages that the main lock tongue 12 automatically pops out after the door is closed, and the lock body automatic locking and unlocking mechanism is simple and convenient; when the scissor bolt 5 is pressed and then popped out incompletely, the main bolt 12 cannot be popped out, and the situation of false spring cannot be hidden; the assembly is simple, and the stability is better.
Preferably, the trigger block return mechanism is a self-locking return spring 16, which may be configured as shown in FIG. 1, oriented in the direction of movement of the self-locking trigger block 6 between the first and second positions. Specifically, when the self-locking trigger block 6 is at the first position, the self-locking return spring 16 is in a compressed state; when the self-locking trigger block 6 is at the second position, the self-locking return spring 16 is in an extended state. Furthermore, the automatic locking and unlocking mechanism of the lock body further comprises a pressure spring support frame 2 for installing a detection tongue support frame 7, a scissor tongue support frame 4 and a spring tongue pressure spring 3 thereof, and a self-locking reset spring 16 is installed on the pressure spring support frame 2. Namely, the installation structure of the self-locking return spring 16 is not separately arranged, but is integrated with the installation structure of the existing scissors tongue 5 and the existing detection tongue 8, so that the structure is simplified, and the assembly and maintenance are convenient.
In this embodiment, the link returning mechanism is a self-locking spring 17, and the structure thereof can be seen in fig. 2. The first end of the self-locking spring 17 is connected with the self-locking trigger block 6, and the other end is connected with the self-locking connecting rod 9. Preferably, the setting direction of the self-locking spring 17 is perpendicular to the movement direction of the main lock tongue 12, so that the movement direction of the self-locking connecting rod 9 is perpendicular to the movement direction of the main lock tongue 12, the spacing matching between the self-locking spring and the main lock tongue is improved, the effectiveness of releasing is improved, the false-occultation prevention effect is improved, and the product stability is improved. Further, the movement direction of the self-locking trigger block 6 is the same as that of the self-locking connecting rod 9, namely the self-locking return spring 16 is parallel to the self-locking spring 17, so that the effectiveness of limiting matching and releasing between the self-locking trigger block and the self-locking connecting rod is improved.
Specifically, limit structure includes:
a main bolt groove 12-1 arranged on the main bolt 12, the structure of which can be shown in figure 2;
and the self-locking connecting rod sleeve 9-1 is arranged at the tail end of the self-locking connecting rod 9 and is in limit fit with the main bolt groove 12-1. In the locking process, the self-locking connecting rod 9 slides into the main bolt groove 12-1 under the action of the connecting rod resetting mechanism (specifically, the restoring force of the self-locking spring 17) to form a limiting effect. Of course, the limiting structure may also adopt a form of a hook, and the like, which is not described herein again.
In order to further optimize the technical scheme, the self-locking connecting rod sleeve 9-1 is in rolling friction fit with the main bolt groove 12-1, so that the self-locking connecting rod sleeve has a self-lubricating effect, the ejection effectiveness is improved, the product stability is improved, and the service life is longer.
Preferably, the scissor tongue support frame 4 is provided with a first surface 4-1, and the self-locking trigger block 6 is provided with a second surface 6-1 which is used for being in contact with the first surface 4-1 for limiting and matching. The scissor tongue supporting frame 4 and the self-locking trigger block 6 are in surface contact, so that the matching area can be enlarged, the ejection effectiveness is improved, and the product stability is improved. Furthermore, the first surface 4-1 is an inclined surface forming an acute angle with the moving direction of the scissor tongue support frame 4, and the second surface 6-1 is an inclined surface matched with the first surface 4-1 and forming an acute angle with the moving direction of the self-locking trigger block 6.
Specifically, the movement direction of the scissor tongue support frame 4 is perpendicular to the movement direction of the self-locking trigger block 6, so that the effectiveness of limiting matching and releasing between the scissor tongue support frame and the self-locking trigger block is improved. In the present embodiment, the movement directions of the scissor tongue support frame 4 and the self-locking trigger block 6 are both straight lines.
In order to further optimize the technical scheme, the self-locking trigger block 6 at the second position can limit the retraction of the scissor tongue support frame 4 to form a scissor tongue locking mechanism; the main bolt 12 can only be in limit fit with the self-locking connecting rod 9 in a fully retracted state;
the automatic locking and unlocking mechanism of the lock body further comprises: the unlocking shifting block 10 is used for switching the self-locking trigger block 6 from the second position to the first position through the unlocking shifting block 10. The structure of the self-locking trigger block can be shown in figure 4, and the self-locking trigger block 6 is contacted with the scissor tongue support frame 4 (specifically, the self-locking trigger block is contacted with the scissor tongue support frame through the second surface 6-1 and the first surface 4-1) to block the retraction of the scissor tongue 5. Through the arrangement, in the unlocking process, after the main bolt 12 is completely retracted, the self-locking trigger block 6 can be cut to the first position from the second position without limiting the retraction of the scissor bolt support frame 4, so that the scissor bolt 5 is released, and the living safety is ensured.
In this embodiment, the unlocking shifting block 10 is provided with an operation hole, the self-locking trigger block 6 is provided with an operation column matched with the through hole, the unlocking shifting block 10 drives the self-locking trigger block 6 to move from the second position to the first position through the matching of the operation hole and the operation column, the structure is simple, and the matching is reliable. Specifically, the unlocking moving block 10 is rotatably installed in a housing (such as the lower cover plate 1) of the lock body through a rotating shaft, so that the same square shaft end and the key end are matched to perform unlocking action. The structure of which can be seen with reference to fig. 1.
Preferably, limit structure includes:
a main bolt limiting part arranged on the main bolt 12;
the connecting rod limiting part is arranged on the self-locking connecting rod 9 and is used for limiting and matching with the main lock tongue limiting part;
when the main lock tongue 12 is completely retracted, the main lock tongue limiting part is positioned in the motion track of the connecting rod limiting part, and in the locking process, the self-locking connecting rod 9 moves under the action of the connecting rod resetting mechanism to enable the connecting rod limiting part to be in limiting fit with the main lock tongue limiting part; when the main lock tongue 12 is not completely retracted, the motion tracks of the main lock tongue limiting part and the connecting rod limiting part are staggered, and at the moment, the other parts of the matching surface of the main lock tongue 12 and the self-locking connecting rod 9 except the main lock tongue limiting part cannot form limiting fit with the connecting rod limiting part, so that the self-locking trigger block 6 keeps the second position to limit the retraction of the scissor tongue supporting frame 4.
Specifically, the main lock tongue limiting part is the main lock tongue groove 12-1, and the connecting rod limiting part is the self-locking connecting rod sleeve 9-1, and the structure can refer to the above description. Correspondingly, under the condition that the main bolt 12 is completely retracted, the main bolt groove 12-1 is positioned in the motion track of the self-locking connecting rod sleeve 9-1, and at the moment, in the locking process, the self-locking connecting rod 9 slides into the main bolt groove 12-1 under the action of the connecting rod resetting mechanism to form a limiting effect;
when the main lock tongue 12 is not completely retracted, the movement tracks of the main lock tongue groove 12-1 and the self-locking connecting rod sleeve 9-1 are staggered, and at the moment, the other parts (which can be specifically planes) of the matching surface of the main lock tongue 12 and the self-locking connecting rod 9 except the main lock tongue groove 12-1 cannot form limit matching with the self-locking connecting rod sleeve 9-1, so that the self-locking trigger block 6 keeps the second position to limit the retraction of the scissor tongue supporting frame 4.
The embodiment of the utility model provides a lock body is still provided, include the above-mentioned automatic unlocking mechanism that locks of lock body.
The present solution is further described below with reference to specific embodiments:
fig. 1 is a schematic structural view of the unlocking mechanism. The automatic unlocking device comprises a lower cover plate 1, a pressure spring support frame 2, a lock tongue pressure spring 3, a scissors tongue support frame 4, a scissors tongue 5, a self-locking trigger block 6, a detection tongue support frame 7, a detection tongue 8, a self-locking connecting rod 9, an unlocking shifting block 10, a main lock tongue shifting block 11, a main lock tongue 12, a side edge strip 13, a main lock tongue torsion spring 14, a main lock tongue shifting block torsion spring 15 and a self-locking reset spring 16.
Fig. 2 is a locked state of the main bolt. Wherein 17 is a self-locking spring, 9-1 is a self-locking connecting rod sleeve, and 12-1 is a main bolt groove. In the locking process, the self-locking connecting rod 9 slides into the main bolt groove 12-1 under the restoring force action of the self-locking spring 17 to form a limiting effect. The self-locking connecting rod sleeve 9-1 and the main bolt groove 12-1 are in rolling friction and have a self-lubricating effect.
Fig. 3 is a schematic diagram of the locked state. During the closing of the door, the scissor tongues 5 and the detection tongue 8 are pressed simultaneously. When the scissor tongue 5 enters the doorframe to pop out, the self-locking trigger block 6 in fig. 1 moves upwards under the action of the self-locking return spring 16, and drives the self-locking connecting rod 9 to move together. When the self-locking connecting rod 9 is separated from the main bolt groove 12-1, the main bolt 12 automatically extends out under the action of the spring to complete the door closing action.
Fig. 4 is a schematic view of the scissor latch locking mechanism. Wherein the second face 6-1 contacts the first face 4-1 to block retraction of the scissor tongue 5. In the unlocking process, the scissor bolt is released after the main spring bolt is completely retracted, so that the living safety is ensured.
To sum up, the embodiment of the utility model provides an automatic release mechanism that locks of lock body, its advantage is:
1) the main spring bolt automatically pops out after the door is closed, so that the door is simple and convenient;
2) the scissor tongue and the detection tongue are simultaneously popped, the main lock tongue cannot be popped, and the situation of false spring hiding cannot occur;
3) the ejection is more effective, the product stability is improved, and the service life is longer.
The embodiment of the utility model provides a lock body of using above-mentioned automatic release mechanism is still provided.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An automatic locking and unlocking mechanism of a lock body is characterized by comprising: the scissors tongue support frame (4), the self-locking trigger block (6), the trigger block reset mechanism, the self-locking connecting rod (9), the connecting rod reset mechanism and the main lock tongue (12);
the self-locking connecting rod (9) and the main bolt (12) are provided with matched limiting structures; the self-locking connecting rod (9) is connected to the self-locking trigger block (6) through the connecting rod resetting mechanism, and the connecting rod resetting mechanism can provide restoring force for limiting and matching with the main lock tongue (12) for the self-locking connecting rod (9);
the self-locking trigger block (6) has two states: in the first position, the self-locking trigger block (6) enables the self-locking connecting rod (9) to be in limit fit with the main bolt (12); in the second position, the self-locking trigger block (6) enables the self-locking connecting rod (9) to be separated from the limit matching with the main lock tongue (12);
the trigger block reset mechanism can provide restoring force for the self-locking trigger block (6) to enable the self-locking trigger block to be tangential from a first position to a second position, the shear tongue support frame (4) in a pressed state can limit the self-locking trigger block (6) at the first position, and the shear tongue support frame (4) in a completely ejected state can allow the self-locking trigger block (6) to be cut to the second position.
2. The automatic lock-unlock mechanism of claim 1, wherein said trigger block return mechanism is a self-locking return spring (16).
3. An automatic locking and unlocking mechanism for a lock body according to claim 1, wherein said link returning mechanism is a self-locking spring (17).
4. An automatic locking and unlocking mechanism for a lock body according to claim 1, wherein the limiting structure comprises:
a main bolt groove (12-1) arranged on the main bolt (12);
and the self-locking connecting rod sleeve (9-1) is arranged at the tail end of the self-locking connecting rod (9) and is used for being in limit fit with the main bolt groove (12-1).
5. An automatic locking and unlocking mechanism of a lock body according to claim 4, characterized in that the self-locking connecting rod sleeve (9-1) is in rolling friction fit with the main bolt groove (12-1).
6. An automatic lock-unlock mechanism of lock body according to claim 1, characterized in that said scissor-tongue support frame (4) has a first face (4-1), and said self-lock trigger block (6) has a second face (6-1) for contacting and spacing-cooperating with said first face (4-1).
7. The automatic lock-unlock mechanism of lock body according to claim 1, wherein the movement direction of the scissor-tongue support frame (4) is perpendicular to the movement direction of the self-lock trigger block (6).
8. The automatic lock-unlock mechanism of lock body according to claim 1, wherein the self-lock trigger block (6) in the second position can limit the retraction of the scissor-tongue support frame (4), and the main lock tongue (12) can only be in limit fit with the self-lock link (9) in the fully retracted state;
the automatic locking and unlocking mechanism of the lock body further comprises: the unlocking shifting block (10), and the self-locking trigger block (6) can be switched to the first position from the second position by the unlocking shifting block (10).
9. An automatic lock and unlock mechanism of a lock body as claimed in claim 8, wherein said limiting structure comprises:
the main lock tongue limiting part is arranged on the main lock tongue (12);
the connecting rod limiting part is arranged on the self-locking connecting rod (9) and is used for limiting and matching with the main spring bolt limiting part;
and under the state that the main lock tongue (12) is completely retracted, the main lock tongue limiting part is positioned in the motion track of the connecting rod limiting part; and under the condition that the main lock tongue (12) is not completely retracted, the motion tracks of the main lock tongue limiting part and the connecting rod limiting part are staggered.
10. A lock body, characterized in that it comprises an automatic locking and unlocking mechanism of a lock body according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997488.8U CN210342983U (en) | 2019-06-28 | 2019-06-28 | Lock body and automatic locking and unlocking mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997488.8U CN210342983U (en) | 2019-06-28 | 2019-06-28 | Lock body and automatic locking and unlocking mechanism thereof |
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| CN210342983U true CN210342983U (en) | 2020-04-17 |
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| CN201920997488.8U Active CN210342983U (en) | 2019-06-28 | 2019-06-28 | Lock body and automatic locking and unlocking mechanism thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144982A (en) * | 2019-06-28 | 2020-12-29 | 云丁网络技术(北京)有限公司 | Lock body and automatic locking and unlocking mechanism thereof |
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- 2019-06-28 CN CN201920997488.8U patent/CN210342983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144982A (en) * | 2019-06-28 | 2020-12-29 | 云丁网络技术(北京)有限公司 | Lock body and automatic locking and unlocking mechanism thereof |
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Address after: 100085 a521, 5th floor, block a, Huilongguan maker Plaza, 338 Huilongguan East Street, Changping District, Beijing Patentee after: Yunding Network Technology (Beijing) Co.,Ltd. Address before: 100085 a521, 5th floor, block a, Huilongguan maker Plaza, 338 Huilongguan East Street, Changping District, Beijing Patentee before: YUN DING NETWORK TECHNOLOGY (BEIJING) Co.,Ltd. |