CN208202825U - A kind of lockset and its rotary limiting device - Google Patents
A kind of lockset and its rotary limiting device Download PDFInfo
- Publication number
- CN208202825U CN208202825U CN201820642796.4U CN201820642796U CN208202825U CN 208202825 U CN208202825 U CN 208202825U CN 201820642796 U CN201820642796 U CN 201820642796U CN 208202825 U CN208202825 U CN 208202825U
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- rotating part
- driving section
- lockset
- section
- limiting
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- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000407 epitaxy Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
Landscapes
- Lock And Its Accessories (AREA)
- Transmission Devices (AREA)
Abstract
The utility model relates to field of lockset, and in particular to a kind of rotary limiting device of lockset.The rotary limiting device includes rotating part, driving section and limiting section, the rotation driving driving section of the rotating part is moved forward and backward, the driving section connect with limiting section and limiting section is driven to be moved forward and backward, the limiting section includes one first position limiting structure, and cooperate or separate with the second position limiting structure of transmission mechanism during back-and-forth motion, the transmission mechanism is limited when the first position limiting structure cooperates with the second position limiting structure.The utility model realizes that rotation drives and is moved forward and backward by designing the rotary limiting device of lockset a kind of, and construction profile is smaller, easy to operate, and structure is more stable, enhances that existing anti-theft intelligent lock is safe and reliable, performance is stable, more convenient；And solve the problems, such as mode of operation complexity of unlocking and lock, such as realized by pressing.
Description
Technical field
The utility model relates to field of lockset, and in particular to a kind of lockset and its rotary limiting device.
Background technique
Lockset has referred to the utensil of sealing process, it includes lock, key and its attachment, and general explanation is that " must use key
What can be absolved seals device ", now, lockset can also be used up, the instructions such as electricity, magnetic, sound and fingerprint are opened in addition to being opened with key
It opens.
Standby spy is that smart lock refers to that being different from tradition machinery locks, more intelligent at user's identification, safety, managerial aspect
The lockset of change, smart lock are the execution units locked a door in access control system.
But in existing lockset, unlocks and locking mode of operation is complicated, such as realized by pressing, be easy top hand, and tie
Structure is complicated, high production cost.Further, it is inconvenient to unlock and lock, and laborious and speed is slow, is unfavorable for user experience.
Utility model content
The technical problem to be solved by the present invention is to, in view of the above drawbacks of the prior art, provide a kind of lockset and
Its rotary limiting device, solves that existing lockset is unlocked and locking mode of operation is complicated, and unlocks and locking is inconvenient asks
Topic.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of rotary limit dress of lockset
It sets, the lockset includes transmission mechanism, and the rotary limiting device includes rotating part, driving section and limiting section, the rotation
The rotation driving driving section in portion is moved forward and backward, and the driving section connect with limiting section and limiting section is driven to be moved forward and backward, the limit
Position portion includes one first position limiting structure, and cooperates or separate with the second position limiting structure of transmission mechanism during back-and-forth motion,
The transmission mechanism is limited when the first position limiting structure cooperates with the second position limiting structure.
Wherein, preferred version is: the installation end face of the rotating part and driving section is equipped with bulge-structure, the driving section
Equipped with the fluctuating end face inconsistent with bulge-structure.
Wherein, preferred version is: the fluctuating end face of the driving section is annulus end face, the bulge-structure root of the rotating part
It is mobile around annulus end face according to the rotation of rotating part.
Wherein, preferred version is: the first adjustable spring is provided between the rotating part and driving section, the driving section is logical
The pulling force for crossing the first adjustable spring is retracted to rotating part；Alternatively, the lockset includes bracket, set between the bracket and driving section
It is equipped with the second adjustable spring, the driving section is contracted by the pulling force or elastic force of the second adjustable spring to rotating part.
Wherein, preferred version is that a release link is additionally provided on the rotating part, and the driving section is equipped with a conduit, the rotation
Rotatable limiting device further includes the reset spring of setting in the channel, in the release link insertion conduit and according to the rotation of rotating part
Turn to move in the channel, and is contradicted with the reset spring extended in conduit, and rotating part spinning reduction is driven by release link.
Wherein, preferred version is: first position limiting structure includes the boss that limiting section outer surface is arranged in, and described second
Position limiting structure is the groove cooperated with boss.
Wherein, preferred version is: the transmission mechanism includes a rotation gear, and the rotation gear includes intermediate throughholes,
The inside of intermediate throughholes is arranged in the groove, and the limiting section is moved forward and backward along intermediate throughholes, the boss of the limiting section
It is caught in during back-and-forth motion in the groove of rotation gear, or separation.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of lockset, the lockset includes
The rotating part of shell, transmission mechanism and rotary limiting device, the rotary limiting device is rotatably provided on shell.
Wherein, preferred version is: the lockset further includes knob and sheath, and the sheath is fixed on shell, the rotation
Transfer part is rotatably provided on sheath, and the knob and rotating part are fixed and protrude surface of shell setting.
Wherein, preferred version is: the shell includes upper cover and lock panel, and the transmission mechanism is arranged in lock panel
Interior, the sheath is fixed on lock panel surface, and the knob passes through upper cover and prominent upper lid surface setting.
The beneficial effects of the utility model are, compared with prior art, the utility model is by designing a kind of lockset
Rotary limiting device realizes that rotation drives and is moved forward and backward that construction profile is smaller, easy to operate, and structure is more stable, enhances existing anti-
Robber's smart lock is safe and reliable, performance is stable, more convenient；And solve the problems, such as mode of operation complexity of unlocking and lock, it is such as logical
Pressing is crossed to realize.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the configuration schematic diagram of the utility model lockset and its rotary limiting device；
Fig. 2 is the structural schematic diagram of the utility model rotating part；
Fig. 3 is the structural schematic diagram of the utility model driving section；
Fig. 4 is the structural schematic diagram of the utility model driving section and the first adjustable spring；
Fig. 5 is the structural schematic diagram of the utility model driving section and reset spring；
Fig. 6 is the structural schematic diagram of the utility model limiting section；
Fig. 7 is the structural schematic diagram of the utility model rotation gear.
Specific embodiment
Now in conjunction with attached drawing, elaborate to the preferred embodiment of the utility model.
As shown in Figure 1, the utility model provides a kind of preferred embodiment of the rotary limiting device of lockset.
The lockset includes transmission mechanism, and the rotary limiting device includes rotating part 11, driving section 12 and limiting section
13, the rotation driving driving section 12 of the rotating part 11 is moved forward and backward, and the driving section 12 connect with limiting section 13 and drives limit
Position portion 13 be moved forward and backward, the limiting section 13 include one first position limiting structure, and during back-and-forth motion with transmission mechanism
The cooperation of second position limiting structure or separation, the transmission mechanism are limited when the first position limiting structure cooperates with the second position limiting structure.
Specifically, it is rotated by operation rotating part 11, driving section 12 is driven to be moved forward and backward, while driving 13 front and back of limiting section
It is mobile, and during limiting section 13 is moved forward and backward, it can move back and the first position limiting structure is inserted into the second position limiting structure, Yi Jiqian
It moves and the first position limiting structure is detached from the second position limiting structure, alternatively, the first position limiting structure is inserted into the second position limiting structure by Forward, with
And it moves back and the first position limiting structure is detached from the second position limiting structure, realize the limit to transmission mechanism or release limit, transmission mechanism
The cisco unity malfunction in limit, i.e., lock lockset, and transmission mechanism can be normal through the same as related control in non-limit
System, under the drive or transmission of transmission mechanism, locks to lockset and is latched.
Further, rotating part 11 is arranged on lockset inner panel, and locking for lockset can be realized by rotating part 11, and,
Limiting section 13 is also connect with lock core, and lock core is arranged on lockset outside plate, controls lock core by key or other relevant control modes
Work, an and portion is driven to be moved forward and backward, to realize locking or release and locking for lockset.
Wherein, above-mentioned " rotation " and " front and back " be using lockset as object of reference, with particular reference to the intermediate auxiliary line in Fig. 1,
The direction of auxiliary line is " front and back " direction, and rotation is rotated on the parallel surface of parallel auxiliary line.
Wherein, transmission mechanism is in the motor component 20 being arranged in as shown in figure 1, and motor component 20 is for driving relevant lock
Tongue locks the arrangement works such as bar or universe rod, carries out locking and unlocking to motor component 20 by limiting section 13.
As shown in Figures 2 and 3, the utility model provides the preferred embodiment of a kind of rotating part and driving section.
The installation end face of the rotating part 11 and driving section 12 is equipped with bulge-structure 111, the driving section 12 be equipped with
The inconsistent fluctuating end face 1211 of bulge-structure 111.Further, the fluctuating end face 1211 of the driving section 12 is annulus end
The bulge-structure 111 in face, the rotating part 11 is mobile around annulus end face according to the rotation of rotating part 11.
Specifically, the end face of driving section 12 is equipped with boss 121, is equipped with annular groove, the bottom of the annular groove in boss 121
Face is fluctuating end face 1211, and the fluctuating end face 1211 includes high spot and non-high spot, is put down between high spot and non-protrusion
It slips over and crosses, be provided preferably between two opposite high spots and two high spots and be equipped with non-protrusion；Rotating part 11 includes protrusion
Structure 111, the bulge-structure 111 can be protruded into annular groove and be contradicted on fluctuating end face 1211, and be rotated in rotating part 11
When, bulge-structure 111 is moved around 11 axis rotation of rotating part on annular groove, contradict in bulge-structure 111 and high spot
When, rotating part 11 and driving section 12 are separate, and when bulge-structure 111 and non-high spot contradict, rotating part 11 and driving section 12 are leaned on
Closely, that is, realize that the rotation driving driving section 12 of rotating part 11 is moved forward and backward.
Wherein, rotating part 11 and driving section 12 are far from referring to that the front-rear position on lockset of rotating part 11 does not move, driving section
12 move back, and close to referring to that the front-rear position on lockset of rotating part 11 does not move, driving section 12 moves forward for rotating part 11 and driving section 12.
In the present embodiment, the first adjustable spring, the driving section are provided between the rotating part 11 and driving section 12
12 are retracted by the pulling force of the first adjustable spring to rotating part 11；Alternatively, the lockset includes bracket, the bracket and driving section
It is provided with the second adjustable spring between 12, the driving section 12 is by the pulling force of the second adjustable spring or elastic force to rotating part 11
Contracting.
Preferably, be provided with the first adjustable spring between rotating part 11 and driving section 12, one end of the first adjustable spring with
Rotating part 11 contradicts, and the other end and driving section 12 contradict；Alternatively, one end of the first adjustable spring and rotating part 11 are fixed,
The other end and driving section 12 contradict, alternatively, one end of the first adjustable spring and rotating part 11 contradict, the other end and driving section 12
It is fixed.And rotating part 11 and driving section 12 far from when, the first adjustable spring is in tensional state, and in 11 He of rotating part
Driving section 12 close to when, driving section 12 is pulled into rotating part 11 and realizes the relative motion of rotating part 11 and driving section 12.
Preferably, and Fig. 4 is referred to, the second adjustable spring 15, the second adjustable spring is provided between bracket and driving section 12
15 one end and rotating part 11 contradict, or are fastened on rotating part 11, and the other end and bracket of the second adjustable spring 15 contradict, or
It is fastened on bracket.And rotating part 11 and driving section 12 far from when, the first adjustable spring is in compressive state, and is revolving
Transfer part 11 and driving section 12 close to when, driving section 12 is exerted a force to rotating part 11 and realizes the opposite of rotating part 11 and driving section 12
Movement.
In the present embodiment, and Fig. 5 is referred to, is additionally provided with a release link 112 on the rotating part 11, the driving section 12 is set
There is a conduit 122, the rotary limiting device further includes the reset spring 14 being arranged in conduit 122, the release link 112
Moved in insertion conduit 122 and according to being rotated in conduit 122 for rotating part 11, and with the reset bullet that extends in conduit 122
Spring 14 contradicts, and drives 11 spinning reduction of rotating part by release link 112.
Wherein, reset spring 14 is fixed on rotating part 11 at least provided with two rings, a ring, another to be equipped with epitaxy part, and
Epitaxy part is extended in conduit 122, is contradicted when the release link 112 protrudes into conduit 122 and with epitaxy part, in conduit 122
When middle mobile, reset spring 14 is driven to rotate, rotates reset spring 14；Under the subsequent bounce in reset spring 14 acts on,
It drives release link 112 to move in conduit 122, returns to home position.
Alternatively, two rings are equipped with epitaxy part, a ring be pressed on by epitaxy part reset spring 14 limited post (123 or
124) on, realize that one end of reset spring 14 is fixed.
Under the action of the first adjustable spring and reset spring 14, realize that driving section 12 is leaned on automatically relative to rotating part 11
Closely, and realize that rotating part 11 automatically resets relative to driving section 12.
As shown in Figure 6 and Figure 7, the utility model provides the preferred embodiment of limiting section and transmission mechanism.
First position limiting structure includes the boss 131 that 13 outer surface of limiting section is arranged in, and second position limiting structure is
The groove 21 cooperated with boss 131.
Preferably, the transmission mechanism includes a rotation gear, and the rotation gear includes intermediate throughholes 22, the groove
21 are arranged in the inside of intermediate throughholes, and the limiting section 13 is moved forward and backward along intermediate throughholes, the boss 131 of the limiting section 13
It is caught in during back-and-forth motion in the groove 21 of rotation gear, or separation.Specifically, boss 131 is preferably provided at limit
The two sides of 13 outer surface of portion are rotated gear and are rotated with limiting section 13 for axle center in 21 separate type of boss 131 and groove, and
When boss 131 and groove 21 fasten, 13 pairs of rotation gears of limiting section are limited, and prevent rotary teeth wheel from rotating.
Further, the end face of driving section 12 is equipped with small boss 126, on the end face that limiting section 13 is connect with driving section 12
Limiting section 13 is fixed on driving section 12 equipped with the small-rabbet 132 cooperated with small boss 126, and by screw；Wherein, it limits
Portion 13 and the drive rod of lock core are fixed, and under the cooperation of small boss 126 and small-rabbet 132, prevent driving section 12 from rotating, and keep it steady
Gu and limiting section 13 is fixed, to prevent due to being rotated under the drive of rotating part 11.
As shown in Figure 1, the utility model provides a kind of preferred embodiment of lockset.
A kind of lockset, the lockset include shell (18,19), transmission mechanism 20 and rotary limiting device, the rotation
The rotating part 11 of formula limiting device is rotatably provided on shell.Wherein, the rotary limiting device includes rotating part 11, transmission
The rotation driving driving section 12 of portion 12 and limiting section 13, the rotating part 11 is moved forward and backward, the driving section 12 and limiting section 13
It connects and limiting section 13 is driven to be moved forward and backward, the limiting section 13 includes one first position limiting structure, and during back-and-forth motion
Cooperate or separate with the second position limiting structure of transmission mechanism 20, the transmission mechanism 20 is tied in the first position limiting structure and the second limit
Structure limits when cooperating.
Specifically, transmission mechanism 20 is arranged on shell and connect with other switch lock sets of lockset, as transmission gear,
Drive rod, door latch structure etc., rotating part 11 are also disposed on shell, and driving section 12 connects with rotating part 11 and limiting section 13 respectively
It connects, the setting of limiting section 13 is equipped on transmission mechanism, or with transmission mechanism 20.
In the present embodiment, the lockset further includes knob 16 and sheath 17, and the sheath 17 is fixed on shell 19, institute
It states rotating part 11 to be rotatably provided on sheath 17, the knob 16 fixed and prominent 18 surface of shell setting with rotating part 11.
Specifically, by rotating knob 16, rotating part 11 is driven to rotate on sheath 17；Knob 16 passes through with rotating part 11
Screw is fixed, and the inside of sheath 17 is arranged in rotating part 11, and rotating part 11 includes a raised platforms and middle interconnecting piece, centre
Interconnecting piece is connect by the middle port of sheath 17 with the rotating part 11 in 17 outside of sheath, and raised platforms are pressed on the interior of sheath 17
On side end face.
In the present embodiment, the shell includes upper cover and lock panel, and the transmission mechanism is arranged in lock panel,
The sheath is fixed on lock panel surface, and the knob passes through upper cover and prominent upper lid surface setting.
As described above, only the best embodiment of the utility model is not intended to limit the scope of the utility model,
All equivalent change or modifications made according to the patent scope of the utility model are all that the utility model is covered.
Claims (10)
1. a kind of rotary limiting device of lockset, the lockset include transmission mechanism, it is characterised in that: the rotary limit
Device includes rotating part, driving section and limiting section, and the rotation driving driving section of the rotating part is moved forward and backward, the driving section with
Limiting section connects and limiting section is driven to be moved forward and backward, and the limiting section includes one first position limiting structure, and in the process of back-and-forth motion
In with the cooperation of the second position limiting structure of transmission mechanism or separate, the transmission mechanism is in the first position limiting structure and the second position limiting structure
It is limited when cooperation.
2. rotary limiting device according to claim 1, it is characterised in that: the installation end of the rotating part and driving section
Face is equipped with bulge-structure, and the driving section is equipped with the fluctuating end face inconsistent with bulge-structure.
3. rotary limiting device according to claim 2, it is characterised in that: the fluctuating end face of the driving section is annulus
The bulge-structure of end face, the rotating part is mobile around annulus end face according to the rotation of rotating part.
4. rotary limiting device according to claim 2, it is characterised in that: be arranged between the rotating part and driving section
There is the first adjustable spring, the driving section is retracted by the pulling force of the first adjustable spring to rotating part；Alternatively, the lockset includes
Bracket, is provided with the second adjustable spring between the bracket and driving section, the driving section passes through the pulling force of the second adjustable spring
Or elastic force contracts to rotating part.
5. rotary limiting device according to claim 2, it is characterised in that: be additionally provided with a reset on the rotating part
Bar, the driving section are equipped with a conduit, and the rotary limiting device further includes the reset spring of setting in the channel, described multiple
It moves in the bar insertion conduit of position and according to the rotation of rotating part, and is contradicted with the reset spring extended in conduit in the channel,
And rotating part spinning reduction is driven by release link.
6. rotary limiting device according to claim 1, it is characterised in that: first position limiting structure includes that setting exists
The boss of limiting section outer surface, second position limiting structure are the groove cooperated with boss.
7. rotary limiting device according to claim 6, it is characterised in that: the transmission mechanism includes a rotary teeth
Wheel, the rotation gear includes intermediate throughholes, and the inside of intermediate throughholes is arranged in the groove, and the limiting section is logical along centre
Hole is moved forward and backward, and the boss of the limiting section is caught in the groove of rotation gear during back-and-forth motion, or separation.
8. a kind of lockset, it is characterised in that: the lockset includes shell, transmission mechanism and as claimed in claim 1
The rotating part of rotary limiting device, the rotary limiting device is rotatably provided on shell.
9. lockset according to claim 8, it is characterised in that: the lockset further includes knob and sheath, and the sheath is solid
It is scheduled on shell, the rotating part is rotatably provided on sheath, and the knob and rotating part are fixed and protrude surface of shell setting.
10. lockset according to claim 9, it is characterised in that: the shell includes upper cover and lock panel, the transmission
Mechanism is arranged in lock panel, and the sheath is fixed on lock panel surface, and the knob passes through upper cover and prominent upper cover table
Face setting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018103865321 | 2018-04-26 | ||
| CN201810386532 | 2018-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208202825U true CN208202825U (en) | 2018-12-07 |
Family
ID=63429806
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820642796.4U Active CN208202825U (en) | 2018-04-26 | 2018-05-02 | A kind of lockset and its rotary limiting device |
| CN201810411159.0A Active CN108518131B (en) | 2018-04-26 | 2018-05-02 | Lockset and rotary limiting device thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411159.0A Active CN108518131B (en) | 2018-04-26 | 2018-05-02 | Lockset and rotary limiting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN208202825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518131A (en) * | 2018-04-26 | 2018-09-11 | 深圳市罗曼斯科技有限公司 | A kind of lockset and its rotary limiting device |
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| TW200902823A (en) * | 2007-07-05 | 2009-01-16 | Thase Entpr Co Ltd | Door handle apparatus |
| US7516633B1 (en) * | 2008-01-16 | 2009-04-14 | Ez Trend Technology Co., Ltd. | Electric lock |
| TWI457493B (en) * | 2011-12-29 | 2014-10-21 | Taiwan Fu Hsing Ind Co Ltd | Transmission mechanism adapted to an electro-mechanical lock and electro-mechanical lock therewith |
| CN103184812B (en) * | 2011-12-29 | 2015-07-08 | 台湾福兴工业股份有限公司 | Reversible handle device |
| WO2013103205A1 (en) * | 2012-01-03 | 2013-07-11 | 주식회사 아이레보 | Clutch assembly for door lock handle shaft |
| CN202627706U (en) * | 2012-04-24 | 2012-12-26 | 闵瑜 | Lock cylinder linkage device |
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| CN205189533U (en) * | 2015-09-30 | 2016-04-27 | 山西黑龙科技有限公司 | Tool to lock panel that has separation and reunion structure of overload protection function and have this separation and reunion structure |
| CN205531692U (en) * | 2016-03-28 | 2016-08-31 | 胡淳龙 | Lock of fleing for one's life safely |
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| CN208202825U (en) * | 2018-04-26 | 2018-12-07 | 深圳市罗曼斯科技有限公司 | A kind of lockset and its rotary limiting device |
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- 2018-05-02 CN CN201820642796.4U patent/CN208202825U/en active Active
- 2018-05-02 CN CN201810411159.0A patent/CN108518131B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518131A (en) * | 2018-04-26 | 2018-09-11 | 深圳市罗曼斯科技有限公司 | A kind of lockset and its rotary limiting device |
| CN108518131B (en) * | 2018-04-26 | 2024-04-26 | 深圳市罗漫斯智能家居有限公司 | Lockset and rotary limiting device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108518131A (en) | 2018-09-11 |
| CN108518131B (en) | 2024-04-26 |
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Effective date of registration: 20190731 Address after: 518000 Longxin Community Fengda Science and Technology Park Phase II Building 703, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Romans Smart Home Co., Ltd. Address before: 518000 Building D of Longda Industrial Park, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: Romance Science and Technology Ltd. of Shenzhen |