CN116181159A - Back-locking knob structure and door lock with same - Google Patents
Back-locking knob structure and door lock with same Download PDFInfo
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- CN116181159A CN116181159A CN202211676080.3A CN202211676080A CN116181159A CN 116181159 A CN116181159 A CN 116181159A CN 202211676080 A CN202211676080 A CN 202211676080A CN 116181159 A CN116181159 A CN 116181159A
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- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000013011 mating Effects 0.000 claims description 36
- 238000009434 installation Methods 0.000 abstract description 23
- 230000000670 limiting effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
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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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Abstract
The invention provides a back locking knob structure and a door lock with the same, comprising: the door lock shell is provided with a communication hole; the locking knob comprises a first connecting piece and a second connecting piece, at least part of the first connecting piece is positioned on the outer side of the door lock shell, at least part of the second connecting piece is positioned on the inner side of the door lock shell, the first connecting piece is provided with a first clamping matching part, the second connecting piece is provided with a second clamping matching part which is used for being matched with the first clamping matching part in a clamping mode, and the second clamping matching part is arranged at the communication hole in a penetrating mode; and the elastic piece is arranged on the second connecting piece in a penetrating way, one end of the elastic piece is abutted with the door lock shell, and the other end of the elastic piece is abutted with the positioning part of the second connecting piece. By the technical scheme provided by the invention, the technical problem of low installation efficiency of the back lock knob structure in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of intelligent door locks, in particular to a back locking knob structure and a door lock with the same.
Background
At present, along with the continuous development of intelligent door locks, the degree of automation of the intelligent door locks is higher and higher, and unlocking can be realized only through buttons indoors, so that safety and convenience are provided for life of users. In order to ensure the safety of the door lock, the intelligent door lock reserves a mechanical back locking knob of the traditional door lock.
However, in the door lock locking knob structure in the prior art, the snap spring or the screw is generally adopted for fixing, other tools are needed to participate in the installation, the structure is complex, the installation is difficult, and the installation efficiency of the locking knob structure is reduced.
Disclosure of Invention
The invention mainly aims to provide a back-locking knob structure and a door lock with the same, so as to solve the technical problem of low installation efficiency of the back-locking knob structure in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a back lock knob structure comprising:
the door lock shell is provided with a communication hole;
the locking knob comprises a first connecting piece and a second connecting piece, at least part of the first connecting piece is positioned on the outer side of the door lock shell, at least part of the second connecting piece is positioned on the inner side of the door lock shell, the first connecting piece is provided with a first clamping matching part, the second connecting piece is provided with a second clamping matching part which is used for being matched with the first clamping matching part in a clamping mode, and the second clamping matching part is arranged at the communication hole in a penetrating mode;
and the elastic piece is arranged on the second connecting piece in a penetrating way, one end of the elastic piece is abutted with the door lock shell, and the other end of the elastic piece is abutted with the positioning part of the second connecting piece.
Further, the first connecting piece comprises a first connecting main body, and the first clamping matching part is arranged at the end part of the first connecting main body; the second connecting piece comprises a second connecting main body, and the second clamping matching part is arranged at the end part of the second connecting main body;
wherein, one of the first joint mating part and the second joint mating part includes the joint arch, and another one of the first joint mating part and the second joint mating part includes the joint recess with the protruding joint of joint.
Further, the first clamping matching part comprises a first clamping block, the first clamping block is arranged at the end part of the first connecting main body, the first clamping block protrudes out of the end part of the first connecting main body, and the clamping protrusion is arranged on the first clamping block; the second joint cooperation portion includes the second joint piece, and the second joint piece sets up the tip at the second connection main part, and the second joint piece protrusion sets up in the tip of second connection main part, and the joint recess sets up on the second joint piece.
Further, a first matching surface is arranged on the first clamping block, and a second matching surface matched with the first matching surface is arranged on the second clamping block;
the clamping protrusion is arranged at the first matching surface, and the clamping groove is arranged at the second matching surface.
Further, the first matching surface is positioned at the side part of the first clamping block, and the second matching surface is positioned at the side part of the second clamping block so as to be spliced and matched with the second matching surface through the first matching surface;
the shape of the splicing structure formed by splicing the first clamping block and the second clamping block is matched with the shape of the communication hole.
Further, the first clamping block is a first arc-shaped block, the first arc-shaped block is provided with a first arc-shaped side surface and a first matching surface which are connected with each other, and the first matching surface is of a plane structure; the second clamping block is a second arc-shaped block, the second arc-shaped block is provided with a second arc-shaped side surface and a second matching surface which are mutually connected, and the second matching surface is of a plane structure;
when the first matching surface and the second matching surface are spliced and matched, the shape enclosed by the first arc-shaped side surface and the second arc-shaped side surface is matched with the shape of the communication hole.
Further, the first connector further includes:
and the operation part is connected with the first connecting main body and is arranged at one end of the first connecting main body, which is far away from the first clamping block.
Further, the positioning part is a positioning flange, the positioning flange is arranged around the periphery of the second connecting body, and the positioning flange protrudes out of the second connecting body.
Further, one end of the second connecting main body far away from the second clamping block is provided with a connecting groove, the connecting groove is matched with the shape of the back locking connecting piece, and the back locking connecting piece is connected with the second connecting main body through the connecting groove.
According to another aspect of the present invention, there is provided a door lock comprising the above-provided anti-lock knob structure.
By adopting the technical scheme, the mounting structure of the back lock knob structure can be simplified by arranging the first connecting piece and the second connecting piece which comprise the first clamping matching part and the second clamping matching part to form the back lock knob through the matching of the first clamping matching part and the second clamping matching part, and meanwhile, the elastic piece can provide a pressing force for the back lock knob structure, so that the mounting is firm, the mounting of the back lock knob structure is simpler, and the mounting efficiency of the back lock knob structure can be improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic structural view of a first connector according to a first embodiment of the present invention;
FIG. 2 illustrates a side view of a first connector provided in accordance with a first embodiment of the present invention;
fig. 3 is a schematic structural view showing a second connector according to a first embodiment of the present invention;
FIG. 4 illustrates a side view of a second connector provided in accordance with a first embodiment of the present invention;
FIG. 5 is an exploded view showing the structure of an anti-lock knob according to the first embodiment of the present invention;
fig. 6 is a schematic structural view of the anti-lock knob according to the first embodiment of the invention after the installation.
Wherein the above figures include the following reference numerals:
10. a door lock housing;
20. a back lock knob; 21. a first connector; 211. a first clamping matching part; 2111. a first clamping block; 21111. a first mating surface; 212. a first connection body; 213. an operation unit;
22. a second connector; 221. a second clamping matching part; 2211. a second clamping block; 22111. a second mating surface; 222. a second connecting body; 2221. a connection groove; 223. a positioning part;
23. the clamping bulge; 24. a clamping groove;
30. an elastic member.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 6, in a first embodiment of the present invention, there is provided a back lock knob structure, including: a door lock housing 10, a counter lock knob 20, and an elastic member 30. The door lock shell 10 is provided with a communication hole, the back locking knob 20 comprises a first connecting piece 21 and a second connecting piece 22, at least part of the first connecting piece 21 is located on the outer side of the door lock shell 10, at least part of the second connecting piece 22 is located on the inner side of the door lock shell 10, the first connecting piece 21 is provided with a first clamping matching part 211, the second connecting piece 22 is provided with a second clamping matching part 221 which is matched with the first clamping matching part 211 in a clamping mode, and the second clamping matching part 221 is arranged at the communication hole in a penetrating mode. The elastic member 30 is inserted through the second connecting member 22, one end of the elastic member 30 abuts against the door lock case 10, and the other end of the elastic member 30 abuts against the positioning portion 223 of the second connecting member 22.
With such arrangement, the first clamping matching part 211 and the second clamping matching part 221 are respectively arranged on the first connecting piece 21 and the second connecting piece 22 of the back lock knob 20, the back lock knob 20 can be installed by replacing the clamp spring with the self structure of the back lock knob 20, and the elastic piece 30 can provide a certain locking force for the back lock knob 20 during installation, so that the back lock knob 20 is fixed by replacing a screw, the installation structure of the back lock knob 20 can be effectively reduced, and the installation efficiency of the back lock knob 20 is improved.
In the present embodiment, the first connector 21 includes a first connecting body 212, and the first snap-fit portion 211 is provided at an end of the first connecting body 212; the second connecting member 22 includes a second connecting body 222, and a second snap-fit portion 221 is disposed at an end of the second connecting body 222. Wherein, one of the first clamping fit portion 211 and the second clamping fit portion 221 includes a clamping protrusion 23, and the other of the first clamping fit portion 211 and the second clamping fit portion 221 includes a clamping groove 24 clamped with the clamping protrusion 23. By adopting the arrangement, the connection between the first connecting piece 21 and the second connecting piece 22 can be facilitated, compared with the traditional connection and fixation modes, the mode structure of the clamping protrusion 23 and the clamping groove 24 is simpler, the installation is more convenient, and the installation efficiency of the back locking knob 20 is further improved.
Specifically, the first snap-fit portion 211 includes a first snap-fit block 2111, the first snap-fit block 2111 is disposed at an end of the first connection body 212, the first snap-fit block 2111 is disposed protruding from the end of the first connection body 212, and the snap-fit protrusion 23 is disposed on the first snap-fit block 2111; the second clamping fitting 221 includes a second clamping block 2211, the second clamping block 2211 is disposed at an end of the second connecting body 222, the second clamping block 2211 protrudes from the end of the second connecting body 222, and the clamping groove 24 is disposed on the second clamping block 2211. By adopting the arrangement of the first clamping block 2111 and the second clamping block 2211, the two parts of the anti-lock knob 20 penetrate through the communication hole to realize cooperation, so that the installation difficulty of the anti-lock knob 20 can be reduced, and the installation efficiency of the anti-lock knob 20 is effectively improved.
Specifically, the first clamping block 2111 is provided with a first mating surface 21111, the second clamping block 2211 is provided with a second mating surface 22111 mating with the first mating surface 21111, the clamping protrusion 23 is disposed at the first mating surface 21111, and the clamping groove 24 is disposed at the second mating surface 22111. The arrangement of the first mating surface 21111 and the second mating surface 22111 provides a space for the arrangement of the clamping protrusion 23 and the clamping groove 24, and in addition, when the clamping protrusion 23 is clamped in the clamping groove 24, the friction force generated by the mating between the first mating surface 21111 and the second mating surface 22111 can also enhance the mating stability of the two to a certain extent, so that the installation and fixation are firmer.
In the present embodiment, the first mating surface 21111 is located at a side portion of the first clamping block 2111, and the second mating surface 22111 is located at a side portion of the second clamping block 2211, so as to be in splicing fit with the second mating surface 22111 through the first mating surface 21111. The shape of the splicing structure formed by splicing the first clamping block 2111 and the second clamping block 2211 is matched with the shape of the communication hole. By adopting the arrangement, the splicing of the splicing structure can be conveniently optimized, and the splicing structure smoothly passes through the communication hole, so that the installation of the back locking knob 20 is more convenient, and the installation efficiency of the back locking knob 20 is further enhanced.
Specifically, the first clamping block 2111 is a first arc-shaped block, the first arc-shaped block has a first arc-shaped side surface and a first mating surface 21111 which are connected with each other, and the first mating surface 21111 is in a planar structure; the second clamping block 2211 is a second arc-shaped block, the second arc-shaped block is provided with a second arc-shaped side surface and a second matching surface 22111 which are connected with each other, and the second matching surface 22111 is of a planar structure. When the first mating surface 21111 and the second mating surface 22111 are spliced, the shape enclosed by the first arc-shaped side surface and the second arc-shaped side surface is matched with the shape of the communication hole.
In this embodiment, the first connector 21 further includes an operation portion 213, the operation portion 213 is connected to the first connecting body 212, and the operation portion 213 is disposed at an end of the first connecting body 212 away from the first clamping block 2111. Such a setting can facilitate user operation, and when the user needs to perform the back-locking operation, the rotation operation portion 213 can drive the back-locking knob 20 to rotate, so that the user experience can be improved.
In this embodiment, the positioning portion 223 is a positioning flange, which is disposed around the periphery of the second connecting body 222, and the positioning flange protrudes from the second connecting body 222. Adopt the setting of location flange, can provide the butt position for the installation of elastic component 30, when elastic component 30 installs, its one end can the butt at lock shell 10 inboard, and the other end then can the butt in location flange department, simultaneously, the location flange can make elastic component 30 install more stably, avoids elastic component 30 at the skew motion route of during operation, guarantees the stability of the installation and the operation of lock knob structure.
In the present embodiment, the end of the second connection body 222 remote from the second snap block 2211 is provided with a connection groove 2221, the connection groove 2221 is adapted to the shape of the counter lock connection member, and the counter lock connection member is connected with the second connection body 222 through the connection groove 2221. Such a setting can be convenient for install with the back-lock connector, or install with other functional parts, can promote the suitability of back-lock knob structure.
The structural components included in this embodiment are: a first connecting piece 21, an elastic piece 30, a second connecting piece 22, and a door lock housing 10. Specifically, the first connecting piece 21 may be a back-locking knob head, the second connecting piece 22 may be a back-locking knob rod, and the elastic piece 30 may be a spring.
In this embodiment, the specific structure may be: (1) anti-lock knob head: a section of semi-cylinder (namely, a first clamping matching part 211) is designed at the position connected with the knob rod, and a convex clamping tongue (namely, a clamping protrusion 23) is arranged on the section of the semi-cylinder of the anti-lock knob head. (2) anti-lock knob stem: the locating flange is designed at the middle section of the rod body, and can be a limiting boss to replace the original clamp spring, so that the limiting effect on the spring is achieved. A section of semi-cylinder (namely a second clamping matching part 221) is designed at the joint of one end of the rod and the back-locking knob head, and is combined with the semi-cylinder on the knob head to form a complete cylinder. A clamping groove (namely a clamping groove 24) is formed in the semi-cylindrical section of the back locking knob rod, and the shape and the size of the clamping groove are matched with those of a clamping tongue on the knob head.
In this embodiment, the assembly scheme may be: the spring passes through one end of the knob rod connected with the knob head, and then passes through a reserved communication hole of the door lock shell 10, so that the spring is positioned between the door lock shell 10 and a knob rod limiting boss. Then, the knob rod is pushed to expose the second snap-fit portion 221 to the outer surface of the door lock case 10, and the spring is compressed. And then the knob head is clamped and installed with the knob rod according to the structural characteristics of the knob head. The length of the spring needs to be greater than the distance between the knob stem limit boss and the inner surface of the door lock housing 10 when the knob head is tightly attached to the outer surface of the door lock housing 10, and the compression allowance is provided after the spring is installed. At this time, under the action of spring force, the knob rod and the knob head can be tensioned and cannot loose and fall off.
The structure that this embodiment provided has changed original mounting means and structure, makes the installation of lock knob 20 become more simple and convenient, does not influence its stability again simultaneously, and the existence of spring makes its use feel unaffected again, has improved installation effectiveness, reduce cost.
In a second embodiment of the present invention, a door lock is provided, which includes the anti-lock knob structure provided in the first embodiment.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: through setting up the first connecting piece 21 and the second connecting piece 22 of mutual joint in order to form the back-locking knob 20, can simplify the mounting structure of back-locking knob 20, and the joint set up also can guarantee joint strength to a certain extent, the setting of elastic component 30 also can provide certain locking force for back-locking knob 20 when the installation simultaneously, can replace the parts that are difficult to install and dismantle such as screw in the traditional back-locking knob structure, adopt such structure setting can make the installation of back-locking knob structure more convenient, can effectively strengthen the installation effectiveness of back-locking knob structure.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An anti-lock knob structure, comprising:
a door lock shell (10), wherein a communication hole is arranged on the door lock shell (10);
a back lock knob (20), wherein the back lock knob (20) comprises a first connecting piece (21) and a second connecting piece (22), at least part of the first connecting piece (21) is positioned on the outer side of the door lock shell (10), at least part of the second connecting piece (22) is positioned on the inner side of the door lock shell (10), the first connecting piece (21) is provided with a first clamping matching part (211), the second connecting piece (22) is provided with a second clamping matching part (221) used for being matched with the first clamping matching part (211) in a clamping mode, and the second clamping matching part (221) is arranged at the communication hole in a penetrating mode;
the elastic piece (30) is arranged on the second connecting piece (22) in a penetrating mode, one end of the elastic piece (30) is in contact with the door lock shell (10), and the other end of the elastic piece (30) is in contact with the positioning part (223) of the second connecting piece (22).
2. The anti-lock knob structure according to claim 1, wherein the first connecting member (21) includes a first connecting body (212), the first snap-fit portion (211) being provided at an end of the first connecting body (212); the second connecting piece (22) comprises a second connecting main body (222), and the second clamping matching part (221) is arranged at the end part of the second connecting main body (222);
wherein one of the first clamping fit portion (211) and the second clamping fit portion (221) comprises a clamping protrusion (23), and the other of the first clamping fit portion (211) and the second clamping fit portion (221) comprises a clamping groove (24) clamped with the clamping protrusion (23).
3. The back lock knob structure according to claim 2, wherein the first snap fit portion (211) includes a first snap block (2111), the first snap block (2111) is provided at an end of the first connection body (212), the first snap block (2111) is provided protruding from an end of the first connection body (212), and the snap protrusion (23) is provided on the first snap block (2111); the second clamping matching part (221) comprises a second clamping block (2211), the second clamping block (2211) is arranged at the end part of the second connecting main body (222), the second clamping block (2211) protrudes out of the end part of the second connecting main body (222), and the clamping groove (24) is formed in the second clamping block (2211).
4. The anti-lock knob structure according to claim 3, wherein the first clamping block (2111) is provided with a first mating surface (21111), and the second clamping block (2211) is provided with a second mating surface (22111) mating with the first mating surface (21111);
the clamping protrusion (23) is arranged at the first matching surface (21111), and the clamping groove (24) is arranged at the second matching surface (22111).
5. The anti-lock knob structure according to claim 4, wherein the first mating surface (21111) is located at a side of the first snap block (2111), and the second mating surface (22111) is located at a side of the second snap block (2211) to be splice-fitted with the second mating surface (22111) through the first mating surface (21111);
the shape of the spliced structure formed by splicing the first clamping block (2111) and the second clamping block (2211) is matched with the shape of the communication hole.
6. The anti-lock knob structure according to claim 5, wherein said first clamping block (2111) is a first arcuate block having a first arcuate side and said first mating surface (21111) connected to each other, said first mating surface (21111) being a planar structure; the second clamping block (2211) is a second arc-shaped block, the second arc-shaped block is provided with a second arc-shaped side surface and a second matching surface (22111) which are connected with each other, and the second matching surface (22111) is of a planar structure;
when the first matching surface (21111) and the second matching surface (22111) are matched in a spliced mode, the shape formed by the first arc-shaped side face and the second arc-shaped side face in a surrounding mode is matched with the shape of the communication hole.
7. A counter-lock knob structure according to claim 3, characterized in that said first connection (21) further comprises:
and an operation unit (213) connected to the first connection body (212), wherein the operation unit (213) is provided at one end of the first connection body (212) away from the first engagement block (2111).
8. The anti-lock knob structure according to claim 2, wherein the positioning portion (223) is a positioning flange, the positioning flange is disposed around a periphery of the second connecting body (222), and the positioning flange protrudes from the second connecting body (222).
9. The back lock knob structure according to claim 3, wherein an end of the second connection body (222) remote from the second snap block (2211) is provided with a connection groove (2221), the connection groove (2221) is adapted to the shape of a back lock connector, and the back lock connector is connected with the second connection body (222) through the connection groove (2221).
10. A door lock comprising the anti-lock knob structure according to any one of claims 1 to 9.
Priority Applications (1)
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CN202211676080.3A CN116181159A (en) | 2022-12-26 | 2022-12-26 | Back-locking knob structure and door lock with same |
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CN202211676080.3A CN116181159A (en) | 2022-12-26 | 2022-12-26 | Back-locking knob structure and door lock with same |
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CN211201417U (en) * | 2019-06-05 | 2020-08-07 | 云丁网络技术(北京)有限公司 | Back locking knob, door lock and door |
CN210659568U (en) * | 2019-06-11 | 2020-06-02 | 北京小米移动软件有限公司 | Back locking mechanism, door lock and door |
CN211229841U (en) * | 2019-09-30 | 2020-08-11 | 珠海格力智能装备有限公司 | Back locking knob assembly and door lock |
CN212201625U (en) * | 2020-01-21 | 2020-12-22 | 佳兆业人工智能创新科技(深圳)有限公司 | Back locking device of intelligent lock |
CN214035112U (en) * | 2020-08-05 | 2021-08-24 | 中山市基信锁芯有限公司 | Child-proof button device for lockset |
CN216741043U (en) * | 2021-12-16 | 2022-06-14 | 珠海格力电器股份有限公司 | Back-locking knob assembly and lockset |
CN217631770U (en) * | 2022-02-22 | 2022-10-21 | 广东名门锁业有限公司 | Back locking assembly adaptive to different door thicknesses and door lock |
CN217841180U (en) * | 2022-05-23 | 2022-11-18 | 珠海格力电器股份有限公司 | Connecting structure for door lock and door lock |
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