CN108798245A - Error preventing lock door lock - Google Patents
Error preventing lock door lock Download PDFInfo
- Publication number
- CN108798245A CN108798245A CN201810410478.XA CN201810410478A CN108798245A CN 108798245 A CN108798245 A CN 108798245A CN 201810410478 A CN201810410478 A CN 201810410478A CN 108798245 A CN108798245 A CN 108798245A
- Authority
- CN
- China
- Prior art keywords
- lock
- switch block
- driving lever
- boss
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- E05B15/10—Bolts of locks or night latches
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
The invention discloses a kind of error preventing lock door locks, including lock case and lock body lid, further include：Lock tongue module, including driving lever and lock tongue, the driving lever are pivotably connected in lock case, and middle part is connected to lock tongue；Handle switch block is rotatably coupled lock case, and outer periphery, which extends, is equipped with convex block, and the convex block is for compressing driving lever and rotating drive bolt retraction；Lock module, including locking switch block, stop mechanism and holding mechanism, the switch block of locking is rotatably connected at lock case, which is provided with boss, stop mechanism can move and limit handle switch block, position of the holding mechanism for keeping locking switch block when not by external force under boss extruding；Under the state of locking, bolt retraction can drive driving lever rotation to hit boss, change the position of boss, release limit of the stop mechanism to handle switch block.Error preventing lock door lock provided by the invention has the advantages that simple in structure, user experience is good.
Description
Technical field
The present invention relates to hardware building materials field, more particularly to a kind of error preventing lock door lock.
Background technology
Currently, mortise door lock is since performance is stablized, good appearance is widely used in the door lock of family and office building office
And the door lock in toilet, bathroom.Generally there are two types of structure types for mortise door lock；Two kinds of single-bolt and double lock tongue, the former is main
Applied to interior door, restroom door and shower door etc., the latter is used primarily on the door of home and office intranets, safety compared with
It is good.Single bolt door lock in use, under normal circumstances, when door is opened, door lock be in normally open, door closed with
Afterwards again on door lock；But can also first lock lock, then close the door, inconvenience in this case will occur in some cases.For example,
Often there is child in interior, and more active child likes playing the knob of locking on door lock, and adult is also accustomed to key at home
Spoon, which is taken off, to be placed in room, once child walks out door door band pass, key can thus occur in room and accidentally door lock
On, if inconvenience will be generated by such situation occur, organizer is needed to unlock.
To solve the above problems, insider constantly attempts and produces error preventing lock door lock, but existing error preventing lock
Door lock internal structure is complicated, and generation, maintenance cost are relatively high.
Invention content
In view of the above problems, the primary purpose of the present invention is that offer one kind is simple in structure, user experience is good anti-error
It locks a door.
For achieving the above object, the present invention provides following scheme：
A kind of error preventing lock door lock, including lock case and lock body lid further include：Lock tongue module, including driving lever and lock tongue, it is described
Driving lever is pivotably connected in the lock case, and middle part is connected to the lock tongue；Handle switch block is rotatably coupled the lock
Body box, outer periphery, which extends, is equipped with convex block, and the convex block drives the bolt retraction for compressing the driving lever and rotating；Instead
Lock module, including switch block, stop mechanism and holding mechanism are locked, the switch block of locking is rotatably connected at the lock case,
Boss is which is provided with, the stop mechanism can move and limit the handle switch block, the holding machine under boss extruding
Position of the structure for locking switch block described in holding when not by external force；Under the state of locking, the bolt retraction can drive described
The boss is hit in driving lever rotation, is changed the position of the boss, is released limit of the stop mechanism to the handle switch block.
Preferably, the balance staff of the driving lever is set to the driving lever close to one end of the handle switch block, and makes described
Hand switch block rotates within 20 ° can make the bolt retraction.
Preferably, the lock tongue module further includes：It is fixed on the support plate of the lock case, and is suppressed in the support
Spring between plate and the lock tongue；The support plate is equipped with U-lag, and the spring one end is set to the U-shaped of the support plate
In slot.
Preferably, the spring is turriform spring, and top is connected to the lock tongue, and bottom end is connected to the support
Plate.
Preferably, the holding mechanism includes triple coil spring, and the triple coil spring both ends are sheathed on the lock case respectively
With the positioning column for locking switch block.
Preferably, the handle switch block is equipped with limiting slot, and the stop mechanism includes the stop bit for being riveted on the lock case
Block and rivet, the riveting location of the stop block are equipped with the trepanning that limiting slot direction extends described in face, make the stop block can
It is moved along trepanning extending direction and is connected in the limiting slot.
Preferably, the lock tongue includes the tongue body portion being connected with each other and sliding block, and the sliding block is equipped with groove, in the driving lever
Portion is limited in the groove.
Preferably, the driving lever is limited in the side of the groove part and is equipped with protrusion, and the protrusion is described for compressing
Groove drives the lock tongue flexible.
Preferably, the lock tongue is oblique lock tongue, and the oblique lock tongue is equipped with mold insert, and the mold insert is non-metallic material, and its
Outer surface and the oblique lock tongue flush with outer surface.
Preferably, the switch block of locking is column, and the boss is to be set to the fan-shaped boss for locking switch block outer rim,
The sector boss is equipped with the step hit for receiving the driving lever close to the side of the driving lever.
Compared with the existing technology, error preventing lock door lock of the present invention includes at least following advantageous effect：
(1) driving lever is arranged in lock tongue, and upper and lower ends can abut handle switch block and lock switch block respectively, and shape is locked in door lock
Under state, make bolt retraction under external force, driving lever rotation can be driven to hit the boss for locking switch block, releases stop mechanism to handle
Error preventing lock is realized in the limit of hand switch block, simple in structure, saves production and maintenance cost.
(2) balance staff of driving lever is set to driving lever close to handle switch block one end, and handle switch block is made to be rotated i.e. between 5 ° to 20 °
Bolt retraction, opening door lock can be made to facilitate unlocking to make the rotational angle of handle between 20 ° to 30 °, improving user makes
With experience.
(3) it is equipped with spring and support plate at lock tongue rear, is used for the flexible reset of lock tongue, and use turriform spring and U-shaped
Support plate is conducive to the stability of spring-compressed process and recuperation.
(4) driving lever is limited in the side of groove part and is equipped with protrusion, and the protrusion drives lock tongue flexible for compressing groove,
Protrusion reduces contact area during driving lever squeezes groove inner wall, to reduce interference, keeps handle rotation lighter, improves
User experience.
(5) tiltedly lock tongue is equipped with nonmetallic mold insert, and the nonmetallic mold insert is set to tongue body central, and its outer surface with tiltedly
Lock tongue flush with outer surface can reduce the noise that lock tongue knocking door case generates at closing time, reduce abrasion.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the internal structure schematic diagram of the error preventing lock door lock of an embodiment of the present invention；
Fig. 2 is the dimensional structure diagram of the unlocked state of the error preventing lock door lock of an embodiment of the present invention；
Fig. 3 is the dimensional structure diagram of the locked state of the error preventing lock door lock of an embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
Please refer to Fig. 1, the present invention provides a kind of error preventing lock door lock 100, including lock case 101, lock body lid (not shown),
Hand (not shown), lock tongue module (not labeled), handle switch block 2 and lock module 3.
Wherein, the lock body is covered on 101 surface of the lock case, makes the lock tongue module, handle switch block 2 and locks mould
Block 3 is contained in the lock case 101；There are two the handle is set, 101 positive and negative both sides of the lock case are respectively arranged in, and
It connect with the handle switch block 2, in order to facilitate observation of the component inside the lock case 101, omits the lock body lid in attached drawing.
Incorporated by reference to Fig. 2 and Fig. 3, the lock tongue module includes lock tongue 11, driving lever 12, spring 13 and support plate 14.The lock
Tongue 11 includes the tongue body portion 111 being connected with each other and sliding block 112, is equipped with shell 102 in the lock case 101, has perforation extremely
The guide groove (not labeled) of 101 side of lock case, the tongue body portion 111 and the sliding block 112 are set to the extension of the guide groove
And it can be flexible along the guide groove on direction.The sliding block 112 is equipped with groove 1121, and the driving lever 12 can be put by balance staff 121
It is connected to the lock case 101 dynamicly, the driving lever 12 is arranged in the groove 1121, and middle part is located at the groove 1121
It is interior.The side that the driving lever 12 is limited in the position of the groove 1121 is equipped with protrusion 120, described raised 120 for compressing institute
It states the madial wall of groove 1121 and drives the lock tongue 11 flexible under 2 rotary action of handle switch block.The support plate 14
It is fixed on 101 inner wall of the lock case.The spring 13 suppresses between the support plate 14 and the sliding block 112.
Preferably, the lock tongue 11 is oblique lock tongue, and the oblique lock tongue is equipped with mold insert 110, and the mold insert 110 is by non-metallic material
Matter is made, and its outer surface and the oblique lock tongue flush with outer surface or micro- high (such as being higher by 0.2mm).The nonmetallic mold insert
110 are set to 111 center of tongue body portion, to reduce the noise of lock tongue knocking door case at closing time, and reduce abrasion.
In the present embodiment, described raised 120 are set to the driving lever 12 close to the side of the lock tongue 11, can be described
Driving lever 12 reduces contact area during squeezing 1121 inner wall of the groove, to reduce interference between the two, handle is made to turn
It is dynamic lighter, improve user experience.
The spring 13 is turriform spring, and top is connected to 112 end of sliding block of the lock tongue 11, and bottom end is connected to
The support plate 14.There is the support plate 14 U-lag, the spring 13 to be set in the U-lag of the support plate 14.It is described
The design of turriform spring 13 and U-shaped support plate 14, be conducive to lock tongue 11 be squeezed retract the lock case 101 when, spring 13
The stability of compression process and recuperation.
Fig. 1 to Fig. 3 is please referred to, the handle switch block 2 is rotatably coupled the lock case 101, which is provided with for pacifying
Fill through-hole (not labeled), convex block 21 and the limiting slot (not labeled) of handle, periphery diameter of the convex block 21 along the handle switch block 2
To extension, the lock tongue 11 is set to shrink for rotationally compressing the rotation of the driving lever 12.In the present embodiment, the handle switch block 2
It is additionally provided with flange 22, makes to form the limiting slot between the convex block 21 and the flange 22.
It should be understood that in the present embodiment, the handle switch block 2 is without resetting-mechanism, when door lock is in normally open, and
The lock tongue 11 stretches out in outside the lock case 101, and the convex block 21 contacts with the driving lever 12 but between the two without active force,
When external force is applied to handle switch block 2 by handle, handle switch block 2 drives driving lever 12 to rotate counterclockwise and drives the lock tongue contracting
It returns, meanwhile, the compression savings elastic force of spring 13, when external force disappears, the reseting elasticity of spring 13 squeezes lock tongue 11 and stretches out, to drive
Driving lever 12 rotates clockwise, and 12 extrusion lug 21 of driving lever makes handle switch block 2 and handle reset.
In other embodiments, it is also provided with handle between the handle switch block 2 and the lock case 101 and resets machine
Structure makes handle reset after turning.The handle resetting-mechanism can be affixed on the lock case 101 and one end and institute
State the torsional spring of the connection of handle switch block 2.
As a kind of preferred embodiment, the balance staff 121 is set to the driving lever 12 close to described 2 one end of handle switch block,
So that the handle switch block 2 is rotated between 5 ° to 20 ° can be such that the lock tongue 11 shrinks, to make the rotational angle of handle exist
Between 20 ° to 30 °.Preferably, the rotation angle of the handle switch block 2 is made to be set as 15 ° or so, handle rotation angle is set as
25 ° or so, user's opening door operation is facilitated, improves user experience.
Fig. 1 to Fig. 3 is please referred to, the module 3 of locking includes locking switch block 31, stop mechanism 32 and holding mechanism 33.Institute
It states and locks switch block 31 and be rotatably connected at the lock case 101, and positioned at the lower section of the handle switch block 2, which is provided with convex
Platform 311, the stop mechanism 32 be set to it is described lock between switch block 31 and the handle switch block 2, and can be in the boss 311
The handle switch block 2 is moved up and then limited under extruding, and the holding mechanism 33 when not by external force for keeping described anti-
Lock the turned position of switch block 31.The driving lever 12 close to it is described lock 31 one end of switch block and be equipped with towards close to described lock 31 side of switch block
The curved portion extended to bending, with when the lock tongue 11 shrinks and the driving lever 12 is driven to rotate, the curved portion 122 can be hit
The boss 311 changes the position of the boss 311, releases limit of the stop mechanism 32 to the handle switch block 2, from
And realize error preventing lock.
In the present embodiment, the switch block 31 of locking is column, can be rotated along the arc groove 103 of the lock case 101, described
Boss 311 is to be set to the fan-shaped boss for locking 31 periphery of switch block, and the sector boss is set close to 12 side of the driving lever
It is useful for receiving the step 3111 that the driving lever is hit, the fan-shaped boss other end opposite with the step 3111 is equipped with positioning column
312。
The stop mechanism 32 includes the stop block 321 for being riveted on the lock case 101, rivet 322 and is connected to described
The riveting location of the support portion 323 at 321 top of stop block, the stop block 321 is equipped with what limiting slot direction described in face extended
Strip trepanning 3211 makes the stop block 321 that can be moved in 3211 extending direction of trepanning, and the support portion 323 is made to be clamped
In the limiting slot.The support portion 323 is welded to each other or is integrally formed with the stop block 321, the width of the support portion 323
Degree is more than the width of the stop block 321, for reinforcing support locking effect.The holding mechanism 33 includes triple coil spring, institute
It states triple coil spring both ends and is sheathed on the lock case 101 and the positioning column 104,312 for locking switch block 31 respectively.
In the present embodiment, the stop mechanism 32 does not have resetting-mechanism, when the boss 311 for locking switch block 31 does not exist
The stop mechanism 32 is squeezed, the stop mechanism 32 can reset downwards under the extruding of its own gravity or the flange 22,
Release the locking effect to handle switch block 2.In other embodiments, the stop mechanism 32 is also provided with resetting-mechanism, makes
It is resetted after locking the unlock of switch block 31.The resetting-mechanism can equally be affixed to the torsional spring on the lock case 101.
For ease of understanding, explanation explained below is done to the error locking proof function of the error preventing lock door lock 100：Fig. 2 is please referred to, is
The unlocked state of door lock, triple coil spring are in the first stable state, and handle switch block 2 can rotate, and lock tongue 11 can be in handle switch block 2
Drive under normal contraction, stir counterclockwise at this time it is described lock switch block 31, so that triple coil spring is in the second stable state, boss
Stop block 321 described in 311 rotation top pressures, the stop block 321 is under the riveting of the rivet 322 and the trepanning 3211 fixation
It moves up, support portion 323 is connected in the limiting slot, i.e. support portion 323 pushes against the lower surface of flange 22 upwards, and handle is made to turn
Block 2 can not rotate, and lock tongue 11 can not be shunk under the drive of handle, complete locking operation, such as Fig. 3.In door lock locked state, when
Door-plate is closed suddenly, and lock tongue 11 collides doorframe and shrinks, and lock tongue 11 drives driving lever 12 to rotate, and the curved portion 122 of driving lever 12 hits institute
Step 3111 is stated, makes to lock switch block 31 and rotates clockwise, stop block 321 described in the rotation of boss 311 no longer top pressure, the stop block
321 can reset downwards under the extruding of its own gravity or the flange 22, release the locking effect to handle switch block 2, complete
Unlock operation.
Compared with prior art, error preventing lock door lock of the present invention has the following advantages：
(1) driving lever is arranged in lock tongue, and upper and lower ends can abut handle switch block and lock switch block respectively, and shape is locked in door lock
Under state, make bolt retraction under external force, driving lever rotation is driven to hit the boss for locking switch block, releases stop mechanism to handle
Error preventing lock is realized in the limit of switch block, simple in structure, saves production and maintenance cost.
(2) balance staff of driving lever is set to driving lever close to handle switch block one end, and handle switch block is made to be rotated i.e. between 5 ° to 20 °
Bolt retraction, opening door lock can be made to facilitate unlocking to make the rotational angle of handle between 20 ° to 30 °, improving user makes
With experience.
(3) it is equipped with spring and support plate at lock tongue rear, is used for the flexible reset of lock tongue, and use turriform spring and U-shaped
Support plate is conducive to the stability of spring-compressed process and recuperation.
(4) driving lever is limited in the side of groove part and is equipped with protrusion, and the protrusion drives lock tongue flexible for compressing groove,
Protrusion reduces contact area during driving lever squeezes groove inner wall, to reduce interference, keeps handle rotation lighter, improves
User experience.
(5) tiltedly lock tongue is equipped with nonmetallic mold insert, and the nonmetallic mold insert is set to tongue body central, and its outer surface with tiltedly
Lock tongue flush with outer surface is micro- high, can reduce the noise that lock tongue knocking door case generates at closing time, reduces abrasion.
Some embodiments provided by the present invention are described in detail above, for the general technology people of this field
Member, the thought of embodiment according to the present invention, there will be changes in the specific implementation manner and application range, in conclusion
The content of the present specification should not be construed as limiting the invention.
Claims (10)
1. a kind of error preventing lock door lock, including lock case and lock body lid, which is characterized in that further include：
Lock tongue module, including driving lever and lock tongue, the driving lever are pivotably connected in the lock case, and middle part is connected to described
Lock tongue；
Handle switch block is rotatably coupled the lock case, and outer periphery, which extends, is equipped with convex block, and the convex block is for compressing institute
It states driving lever and rotates and drive the bolt retraction；
Module is locked, including locks switch block, stop mechanism and holding mechanism, the switch block of locking is rotatably connected at the lock
Body box, which is provided with boss, and the stop mechanism can move under boss extruding and limit the handle switch block, the guarantor
Hold position of the mechanism for locking switch block described in holding when not by external force；
Under the state of locking, the bolt retraction can drive the driving lever rotation to hit the boss, change the position of the boss
It sets, releases limit of the stop mechanism to the handle switch block.
2. error preventing lock door lock according to claim 1, which is characterized in that the balance staff of the driving lever is set to the driving lever and leans on
One end of the nearly handle switch block, and make the handle switch block rotate within 20 ° can to make the bolt retraction.
3. error preventing lock door lock according to claim 1, which is characterized in that the lock tongue module further includes：It is fixed on described
The support plate of lock case, and suppress the spring between the support plate and the lock tongue；The support plate is equipped with U-lag,
The spring one end is set in the U-lag of the support plate.
4. error preventing lock door lock according to claim 3, which is characterized in that the spring is turriform spring, top connection
In the lock tongue, bottom end is connected to the support plate.
5. error preventing lock door lock according to claim 1, which is characterized in that the holding mechanism includes triple coil spring, described
Triple coil spring both ends are sheathed on the lock case and the positioning column for locking switch block respectively.
6. error preventing lock door lock according to claim 1, which is characterized in that the handle switch block is equipped with limiting slot, described to stop
Position mechanism includes being riveted on the stop block and rivet of the lock case, and the riveting location of the stop block, which is equipped with described in face, to be limited
The trepanning that slot direction extends, makes the stop block that can be moved along trepanning extending direction and is connected in the limiting slot.
7. error preventing lock door lock according to claim 1, which is characterized in that the lock tongue include be connected with each other tongue body portion and
Sliding block, the sliding block are equipped with groove, the groove are limited in the middle part of the driving lever.
8. error preventing lock door lock according to claim 7, which is characterized in that the driving lever is limited in the side of the groove part
Face is equipped with protrusion, and the protrusion drives the lock tongue flexible for compressing the groove.
9. error preventing lock door lock according to claim 1, which is characterized in that the lock tongue is oblique lock tongue, and the oblique lock tongue is set
There is a mold insert, the mold insert is non-metallic material, and its outer surface and the oblique lock tongue flush with outer surface or micro- high.
10. error preventing lock door lock according to claim 1, which is characterized in that the switch block of locking is column, and the boss is
It is set to the fan-shaped boss for locking switch block outer rim, the sector boss is equipped with close to the side of the driving lever for receiving
State the step of driving lever shock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410478.XA CN108798245A (en) | 2018-05-02 | 2018-05-02 | Error preventing lock door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810410478.XA CN108798245A (en) | 2018-05-02 | 2018-05-02 | Error preventing lock door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108798245A true CN108798245A (en) | 2018-11-13 |
Family
ID=64093357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810410478.XA Pending CN108798245A (en) | 2018-05-02 | 2018-05-02 | Error preventing lock door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798245A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685504A (en) * | 2019-10-25 | 2020-01-14 | 上海勃傲自动化系统有限公司 | Intelligent safety lock device |
| CN111441654A (en) * | 2020-05-07 | 2020-07-24 | 广州市德金金属制品有限公司 | Door lock with rotating shaft pressed by integral zinc alloy and convenient to assemble |
| CN111550125A (en) * | 2020-06-05 | 2020-08-18 | 上海洋洋大多利五金制品有限公司 | Door lock with embedded handle |
| WO2023246067A1 (en) * | 2022-06-21 | 2023-12-28 | 广东名门锁业有限公司 | Lock body structure and keyless door lock |
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| CN203961455U (en) * | 2014-07-18 | 2014-11-26 | 胡利恒 | Passage lock |
| CN204511046U (en) * | 2015-02-11 | 2015-07-29 | 浙江保佳安锁业有限公司 | The anti-plug device of inclined tongue of lock |
| CN206928774U (en) * | 2017-07-01 | 2018-01-26 | 中山欧朗金属制品有限公司 | The anti-plug tongue structure of lock body |
| CN208473460U (en) * | 2018-05-02 | 2019-02-05 | 广东顶固集创家居股份有限公司 | Error preventing lock door lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201810044U (en) * | 2009-07-01 | 2011-04-27 | 闵瑜 | Lock core device of door lock |
| CN201574640U (en) * | 2009-12-21 | 2010-09-08 | 苏志坚 | Single-tongue mortice door lock |
| CN203961455U (en) * | 2014-07-18 | 2014-11-26 | 胡利恒 | Passage lock |
| CN204511046U (en) * | 2015-02-11 | 2015-07-29 | 浙江保佳安锁业有限公司 | The anti-plug device of inclined tongue of lock |
| CN206928774U (en) * | 2017-07-01 | 2018-01-26 | 中山欧朗金属制品有限公司 | The anti-plug tongue structure of lock body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685504A (en) * | 2019-10-25 | 2020-01-14 | 上海勃傲自动化系统有限公司 | Intelligent safety lock device |
| CN111441654A (en) * | 2020-05-07 | 2020-07-24 | 广州市德金金属制品有限公司 | Door lock with rotating shaft pressed by integral zinc alloy and convenient to assemble |
| CN111550125A (en) * | 2020-06-05 | 2020-08-18 | 上海洋洋大多利五金制品有限公司 | Door lock with embedded handle |
| WO2023246067A1 (en) * | 2022-06-21 | 2023-12-28 | 广东名门锁业有限公司 | Lock body structure and keyless door lock |
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