CN114458087B - Handle assembly - Google Patents
Handle assembly Download PDFInfo
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- CN114458087B CN114458087B CN202111675975.0A CN202111675975A CN114458087B CN 114458087 B CN114458087 B CN 114458087B CN 202111675975 A CN202111675975 A CN 202111675975A CN 114458087 B CN114458087 B CN 114458087B
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- handle
- limiting
- connecting part
- mounting hole
- handle assembly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to the technical field of locks, and discloses a handle assembly, which comprises: one end of the fixed seat is provided with a cylindrical first limiting part, and the periphery of the end part of the first limiting part is provided with a convex limiting clamping table; the handle is a shell, one side of the handle is provided with a mounting hole and sleeved on the first limiting part, and the mounting hole is provided with a limiting baffle which extends towards the center of the hole and the side surface of which is abutted on the limiting clamping table so as to limit the handle to move towards one side far away from the fixing seat; the first connecting part is arranged in the first limiting part, and one end of the first connecting part is abutted against the inner wall of the handle; and the return spring is arranged in the first limiting part and applies acting force towards one side of the mounting hole to the first connecting part. When the handle assembly is applied to a door lock and the handle is pushed or pulled, the limiting clamping table serves as a fulcrum, so that the handle can push the first connecting part to move towards one side of the linkage structure, and unlocking is achieved.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a handle assembly.
Background
The handle of the door lock is generally directly connected with the square core inside the lock, and the square core can be rotated by rotating the handle so as to retract the lock tongue of the lock to realize unlocking. But unlocking habits of different users are different, such as rotating the handle clockwise, rotating the handle counterclockwise, pushing the handle inward, pulling the handle outward, etc. To this demand, some tool to lock manufacturers have set up the linkage structure between handle and square core, all can rotate the square core through pushing, pulling or rotatory handle and realize unblanking. However, most of the common handles have an elongated grip, and when the handle is pushed or pulled, the stress point of the handle is not on the straight line where the square core is located, so that a user is required to apply a larger external force to rotate the square core, and the service life of the handle is affected.
Disclosure of Invention
The invention is made to solve the technical problems, and aims to provide a handle assembly adopting a lever principle, which is applied to a door lock, and can be unlocked by small external force when pushing or pulling the handle.
In order to achieve the above object, the present invention provides a handle assembly comprising: one end of the fixed seat is provided with a cylindrical first limiting part, and the periphery of the end part of the first limiting part is provided with a convex limiting clamping table; the handle is a shell, one side of the handle is provided with a mounting hole and sleeved on the first limiting part, and the mounting hole is provided with a limiting baffle which extends towards the center of the hole and the side surface of which is abutted on the limiting clamping table so as to limit the handle to move towards one side far away from the fixing seat; the first connecting part is arranged in the first limiting part, and one end of the first connecting part is abutted against the inner wall of the handle; and the return spring is arranged in the first limiting part and applies acting force towards one side of the mounting hole to the first connecting part.
Preferably, the height of the limit baffle is smaller than the height of the limit clamping table.
Preferably, the periphery of the first connecting part is provided with a contact surface which is abutted against the inner wall of the first limiting part; one end of the first connecting part is clamped with the mounting hole.
Preferably, a cylindrical second limiting part is arranged in the first limiting part, and the first connecting part is sleeved on the second limiting part; one end of the first connecting part is clamped with the mounting hole.
Preferably, a second connecting part is fixedly arranged in the mounting hole, and a polygonal or elliptical connecting boss is arranged at one end of the second connecting part, which is close to the first connecting part; one end of the first connecting part is provided with a third groove with the same shape as the connecting boss.
Preferably, one end of the first connecting portion is polygonal or elliptical; the mounting hole is internally provided with an assembly groove with the same shape as the end part of the first connecting part.
Preferably, the handle comprises a first housing and a second housing that are snapped or bolted together; the mounting hole is formed by splicing a first groove formed in the first shell and a second groove formed in the second shell.
According to the above description and practice, the handle assembly of the present invention has the limiting clamping platform on the periphery of the first limiting part for supporting the handle, and the first connecting part in the first limiting part for connecting with the linkage structure in the door lock. When pushing or pulling the handle, the limiting clamping table is used as a fulcrum, so that the handle pushes the first connecting part to move towards one side of the linkage structure, and unlocking is achieved. Because the lever principle is adopted by the handle component, unlocking can be realized by pushing or pulling the handle with smaller external force, and the handle component is convenient for users to use. In addition, because the handle is not connected with the first limiting part in a sliding way, the contact surface of the handle and the first limiting part is smaller in the process of pushing and pulling the handle, and the abrasion of the handle and the first limiting part can be reduced, so that the service life of the handle assembly is prolonged. In addition, still with first connecting portion and handle joint in this handle subassembly, make the two can rotate simultaneously, remain traditional handle rotatory function of unblanking.
Drawings
Fig. 1 is a schematic cross-sectional view of a handle assembly according to a first embodiment of the present invention.
Fig. 2a and 2b are exploded views of a handle assembly according to a first embodiment of the present invention from two different perspectives.
Fig. 3 is a schematic structural view of a handle according to a first embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a handle assembly according to a second embodiment of the present invention.
Fig. 5a and 5b are exploded views of a handle assembly according to a second embodiment of the present invention from two different perspectives.
Fig. 6 is a schematic structural view of a handle according to a second embodiment of the present invention.
The reference numerals in the figures are:
1. handle 11, mounting hole 12 and limit baffle
13. Second connecting part 14, connecting boss 15 and first shell
16. Second housing 17, first groove 18, second groove
19. Assembly groove 2, fixing seat 21, first limit part
22. Mounting portion 23, limit clamping table 24, second limit portion
3. First connecting portion 31, third groove 4, and return spring
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like, are used merely as labels, and do not limit the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
In this embodiment, a handle assembly is provided, the handle assembly is mounted on one side of the door lock, one end of a linkage structure in the door lock is connected with a square core of the door lock, and the other end is connected with the handle assembly. When the handle assembly pushes or pulls the handle in the use process, one end of the handle assembly connected with the interlocking structure of the door lock moves towards the same direction, so that the interlocking structure is driven to move and the square core is driven to rotate, and unlocking is realized.
FIG. 1 shows a cross-sectional structure of the handle assembly; FIGS. 2a and 2b illustrate exploded configurations of the handle assembly at two different viewing angles; fig. 3 shows the structure of the handle in the handle assembly. Referring to fig. 1 to 3, the handle assembly includes: handle 1, fixing base 2, first connecting portion 3 and reset spring 4.
The right side of fixing base 2 is equipped with the first spacing portion 21 of cylinder for install handle 1, first connecting portion 3 and reset spring 4, the left side of fixing base 2 is a installation department 22, and the diameter of installation department 22 is greater than the diameter of first spacing portion 21, can be used to with this handle subassembly fixed mounting on the door lock. A limit clamping table 23 protruding towards the outer periphery is arranged at the right end of the first limit part 21. The handle 1 is a shell, one side of the handle is provided with a mounting hole 11 and sleeved on the first limiting part 21, and meanwhile, the inner wall of the mounting hole 11 is provided with a limiting baffle 12 which extends towards the center of the hole and the side surface of which is abutted on the inner side wall of the limiting clamping table 23, so as to limit the handle 1 to move towards the outer side (namely the right side in fig. 1) of the limiting clamping table 23. The first connecting part 3 is arranged in the first limiting part 21 and can move along the axial direction of the first limiting part, and the right end of the first connecting part 3 is abutted against the inner wall of the handle 1. The return spring 4 is provided in the first stopper 21, the left end of the return spring 4 is fixed, for example, in contact with the mounting portion 22, the right end of the return spring 4 is in contact with the first connecting portion 3, and a biasing force toward the mounting hole 11 is applied to the first connecting portion 3. The return spring 4 can indirectly apply a force to the handle 1 towards the right, so that the limit baffle 12 can be tightly abutted against the limit clamping table 23, and the handle 1 can be stably connected to the first limit part 21.
The left end of the first connecting part 3 is used for being connected with a linkage structure of the door lock, and when the first connecting part 3 rotates or moves to one side of the linkage structure, the square core of the door lock can be driven to rotate, so that unlocking is realized. It is an object of the present disclosure to provide a handle assembly capable of moving the first connecting portion 3 to a side close to the interlocking structure regardless of pushing or pulling the handle, and thus the interlocking structure and its connection relationship with the first connecting portion 3 will not be described in the present disclosure.
When the handle assembly is used, in the process of pushing the upper part of the handle 1 to the left, the limiting clamping table 23 can be used as a fulcrum, the handle 1 swings to the left by taking the intersection point of the limiting baffle 12 at the lower side and the limiting clamping table 23 as the center, and meanwhile, the upper part of the first connecting part 3 is pushed to the left by the handle 1; when the upper part of the handle 1 is pulled to the right, the limit clamping table 23 can be used as a fulcrum, the handle 1 swings to the right by taking the intersection point of the limit baffle 12 on the upper side and the limit clamping table 23 as the center, and simultaneously the lower part of the first connecting part 3 is pushed to the left by the handle 1. In other words, pushing or pulling the handle 1 can realize unlocking, and meanwhile, as the handle component adopts the lever principle, the handle 1 can be pushed or pulled by small external force to realize unlocking, so that the handle component is convenient for users to use. In addition, because the handle 1 is not connected with the first limiting part 21 in a sliding way, the contact surface of the handle 1 and the first limiting part is smaller in the process of pushing and pulling the handle 1, and the abrasion of the handle and the first limiting part can be reduced, so that the service life of the handle assembly is prolonged.
In the process of pushing or pulling the handle 1, in order to avoid that the limit baffle 12 touches the outer side wall of the first limit part 21, the height of the limit baffle 12 is set to be smaller than the height of the limit clamping table 23, so that the service life of the handle assembly can be further prolonged.
In order to retain the conventional function of unlocking the rotary handle, in this embodiment, the first connecting portion 3 is further rotatably disposed in the first limiting portion 21, for example, a contact surface abutting on the inner wall of the first limiting portion 21 is disposed at the outer periphery of the first connecting portion 3; or a cylindrical second limiting part 24 is concentrically arranged in the first limiting part 21, the left end of the second limiting part 24 is fixedly connected with the mounting part 22, and the first connecting part 3 is sleeved on the second limiting part 24. In both of these structures, the first connecting portion 3 can be moved in the axial direction while being rotated in the first stopper portion 21. And simultaneously, the right end of the first connecting part 3 is clamped with the mounting hole 11. In this embodiment, the handle 1 and the first connecting portion 3 are indirectly engaged by fixedly providing the second connecting portion 13 in the mounting hole 11. Specifically, a polygonal or elliptical coupling boss 14 is provided on the left side of the second coupling portion 13, and a third groove 31 having the same shape as the coupling boss 14 is provided on the right end of the first coupling portion 3, and the coupling boss 14 is engaged with the third groove 31, so that the handle 1 and the first coupling portion 3 can be rotated simultaneously. The unlocking function of the rotary handle is realized, and meanwhile, the unlocking function of the push or pull handle is not influenced. Similarly, since the connection relationship between the left end of the first connection portion 3 and the linking structure is not the invention point of the present disclosure, the description thereof will not be repeated.
In this embodiment, the handle 1 is assembled by the first housing 15 and the second housing 16, which are bolted or clamped together, so as to be conveniently mounted on the first limiting portion 21. The first housing 15 is provided with a circular arc-shaped first groove 17 and a second groove 18 on the second housing 16 which are spliced together, and the two grooves are arranged in opposite directions and are butted together to form a circular mounting hole 11.
Example two
In this embodiment, a handle assembly is provided, the handle assembly is mounted on one side of the door lock, one end of a linkage structure in the door lock is connected with a square core of the door lock, and the other end is connected with the handle assembly. When the handle assembly pushes or pulls the handle in the use process, one end of the handle assembly connected with the interlocking structure of the door lock moves towards the same direction, so that the interlocking structure is driven to move and the square core is driven to rotate, and unlocking is realized.
FIG. 4 shows a cross-sectional structure of the handle assembly; FIGS. 5a and 5b illustrate exploded configurations of the handle assembly at two different viewing angles; fig. 6 shows the structure of the handle in the handle assembly. Referring to fig. 4 to 6, the handle assembly includes: handle 1, fixing base 2, first connecting portion 3 and reset spring 4.
The right side of fixing base 2 is equipped with the first spacing portion 21 of cylinder for install handle 1, first connecting portion 3 and reset spring 4, the left side of fixing base 2 is a installation department 22, and the diameter of installation department 22 is greater than the diameter of first spacing portion 21, can be used to with this handle subassembly fixed mounting on the door lock. A limit clamping table 23 protruding towards the outer periphery is arranged at the right end of the first limit part 21. The handle 1 is a shell, one side of the handle is provided with a mounting hole 11 and sleeved on the first limiting part 21, and meanwhile, the inner wall of the mounting hole 11 is provided with a limiting baffle 12 which extends towards the center of the hole and the side surface of which is abutted on the inner side wall of the limiting clamping table 23, so as to limit the handle 1 to move towards the outer side (namely the right side in fig. 3) of the limiting clamping table 23. The first connecting part 3 is arranged in the first limiting part 21 and can move along the axial direction of the first limiting part, and the right end of the first connecting part 3 is abutted against the inner wall of the handle 1. The return spring 4 is provided in the first stopper 21, the left end of the return spring 4 is fixed, for example, in contact with the mounting portion 22, the right end of the return spring 4 is in contact with the first connecting portion 3, and a biasing force toward the mounting hole 11 is applied to the first connecting portion 3. The return spring 4 can indirectly apply a force to the right side to the handle 1, so that the limit baffle 12 can be tightly abutted against the limit clamping table 23, and the handle 1 can be stably connected to the first limit part 21.
The left end of the first connecting part 3 is used for being connected with a linkage structure of the door lock, and when the first connecting part 3 rotates or moves to one side of the linkage structure, the square core of the door lock can be driven to rotate, so that unlocking is realized. It is an object of the present disclosure to provide a handle assembly capable of moving the first connecting portion 3 to a side close to the interlocking structure regardless of pushing or pulling the handle, and thus the interlocking structure and its connection relationship with the first connecting portion 3 will not be described in the present disclosure.
When the handle assembly is used, in the process of pushing the upper part of the handle 1 to the left, the limiting clamping table 23 can be used as a fulcrum, the handle 1 swings to the left by taking the intersection point of the limiting baffle 12 at the lower side and the limiting clamping table 23 as the center, and meanwhile, the upper part of the first connecting part 3 is pushed to the left by the handle 1; when the upper part of the handle 1 is pulled to the right, the limit clamping table 23 can be used as a fulcrum, the handle 1 swings to the right by taking the intersection point of the limit baffle 12 on the upper side and the limit clamping table 23 as the center, and simultaneously the lower part of the first connecting part 3 is pushed to the left by the handle 1. In other words, pushing or pulling the handle 1 can realize unlocking, and meanwhile, as the handle component adopts the lever principle, the handle 1 can be pushed or pulled by small external force to realize unlocking, so that the handle component is convenient for users to use. In addition, because the handle 1 is not connected with the first limiting part 21 in a sliding way, the contact surface of the handle 1 and the first limiting part is smaller in the process of pushing and pulling the handle 1, and the abrasion of the handle and the first limiting part can be reduced, so that the service life of the handle assembly is prolonged.
In the process of pushing or pulling the handle, in order to avoid that the limit baffle 12 touches the outer side wall of the first limit part 21, the height of the limit baffle 12 is set to be smaller than the height of the limit clamping table 23, so that the service life of the handle assembly can be further prolonged.
In order to retain the conventional function of unlocking the rotary handle, in this embodiment, the first connecting portion 3 is further rotatably disposed in the first limiting portion 21, for example, a circular contact surface abutting on the inner wall of the first limiting portion 21 is disposed at the outer periphery of the first connecting portion 3; or a cylindrical second limiting part 24 is concentrically arranged in the first limiting part 21, the left end of the second limiting part 24 is fixedly connected with the mounting part 22, and the first connecting part 3 is sleeved on the second limiting part 24. In both of these structures, the first connecting portion 3 can be moved in the axial direction while being rotated in the first stopper portion 21. And simultaneously, the right end of the first connecting part 3 is clamped with the mounting hole 11. In this embodiment, the right end of the first connecting portion 3 is rectangular, and a rectangular fitting groove 19 is provided in the mounting hole 11, and the right end of the first connecting portion 3 is inserted into the fitting groove 19, so that the handle 1 and the first connecting portion 3 can be rotated simultaneously. The unlocking function of the rotary handle is realized, and meanwhile, the unlocking function of the push or pull handle is not influenced. Similarly, since the connection relationship between the left end of the first connection portion 3 and the linking structure is not the invention point of the present disclosure, the description thereof will not be repeated. In other embodiments, the right end of the first connecting portion 3 may be formed in another polygonal shape or an elliptical shape, and the shape of the fitting groove 19 may be changed to be the same as that of the fitting groove, so that the handle 1 and the first connecting portion 3 can be rotated simultaneously.
In this embodiment, the handle 1 is assembled by the first housing 15 and the second housing 16, which are bolted or clamped together, so as to be conveniently mounted on the first limiting portion 21. The first housing 15 is provided with a circular arc-shaped first groove 17 and a second groove 18 on the second housing 16 which are spliced together, and the two grooves are arranged in opposite directions and are butted together to form a circular mounting hole 11.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A handle assembly, comprising:
one end of the fixed seat is provided with a cylindrical first limiting part, and the periphery of the end part of the first limiting part is provided with a convex limiting clamping table;
the handle is a shell, one side of the handle is provided with a mounting hole and sleeved on the first limiting part, the mounting hole is provided with a limiting baffle plate which extends towards the center of the hole and the side surface of the limiting baffle plate is abutted against the limiting clamping table, and the height of the limiting baffle plate is smaller than that of the limiting clamping table so as to limit the handle to move towards one side far away from the fixing seat;
the first connecting part is arranged in the first limiting part, and one end of the first connecting part is abutted against the inner wall of the handle;
and the return spring is arranged in the first limiting part and applies acting force towards one side of the mounting hole to the first connecting part.
2. The handle assembly of claim 1, wherein,
the periphery of the first connecting part is provided with a contact surface which is abutted against the inner wall of the first limiting part;
one end of the first connecting part is clamped with the mounting hole.
3. The handle assembly of claim 1, wherein,
a cylindrical second limiting part is arranged in the first limiting part, and the first connecting part is sleeved on the second limiting part;
one end of the first connecting part is clamped with the mounting hole.
4. A handle assembly as claimed in claim 2 or 3, wherein,
a second connecting part is fixedly arranged in the mounting hole, and a polygonal or elliptic connecting boss is arranged at one end of the second connecting part, which is close to the first connecting part;
one end of the first connecting part is provided with a third groove with the same shape as the connecting boss.
5. A handle assembly as claimed in claim 2 or 3, wherein,
one end of the first connecting part is polygonal or elliptical;
the mounting hole is internally provided with an assembly groove with the same shape as the end part of the first connecting part.
6. The handle assembly of claim 1, wherein,
the handle comprises a first shell and a second shell which are clamped or bolted together;
the mounting hole is formed by splicing a first groove formed in the first shell and a second groove formed in the second shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111675975.0A CN114458087B (en) | 2021-12-31 | 2021-12-31 | Handle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111675975.0A CN114458087B (en) | 2021-12-31 | 2021-12-31 | Handle assembly |
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| Publication Number | Publication Date |
|---|---|
| CN114458087A CN114458087A (en) | 2022-05-10 |
| CN114458087B true CN114458087B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111675975.0A Active CN114458087B (en) | 2021-12-31 | 2021-12-31 | Handle assembly |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207033140U (en) * | 2017-06-27 | 2018-02-23 | 北京汽车研究总院有限公司 | A kind of outside door handle tripper |
| CN109812132A (en) * | 2019-01-29 | 2019-05-28 | 苏州琨山智能科技有限公司 | By drawing handle lock |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350816A (en) * | 1998-06-08 | 1999-12-21 | Hisayuki Horiguchi | Door lock allowing latch to be pulled by pushing and pulling handle |
| JP2002213133A (en) * | 2001-01-23 | 2002-07-31 | Hitoshi Nishitani | Operating handle for latch lock |
| DE10332737A1 (en) * | 2003-07-17 | 2005-03-31 | Herbert Viehhauser | Door lock handle, for a room door, acts on a rotating plate disk in a housing to release the latch by an upward/downward and pulling movement, and the latch moves home automatically when the door is closed |
| CN203729707U (en) * | 2014-02-20 | 2014-07-23 | 深圳市锐耐智能锁业有限公司 | Intelligent lock |
| CN104975755B (en) * | 2015-07-07 | 2024-03-22 | 广东名门锁业有限公司 | Anti-theft structure for inner handle of door lock |
| CN204983920U (en) * | 2015-07-27 | 2016-01-20 | 广东必达保安系统有限公司 | Prevent catching hold of with a hook handle structure of lock |
| CN105220940B (en) * | 2015-09-28 | 2018-11-13 | 王力安防科技股份有限公司 | Safe square shaft |
| CN105971408B (en) * | 2016-07-11 | 2019-02-01 | 南京东屋电气有限公司 | Lock core mechanism |
-
2021
- 2021-12-31 CN CN202111675975.0A patent/CN114458087B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207033140U (en) * | 2017-06-27 | 2018-02-23 | 北京汽车研究总院有限公司 | A kind of outside door handle tripper |
| CN109812132A (en) * | 2019-01-29 | 2019-05-28 | 苏州琨山智能科技有限公司 | By drawing handle lock |
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| CN114458087A (en) | 2022-05-10 |
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