CN205558605U - Sliding door mechanism - Google Patents
Sliding door mechanism Download PDFInfo
- Publication number
- CN205558605U CN205558605U CN201620181316.XU CN201620181316U CN205558605U CN 205558605 U CN205558605 U CN 205558605U CN 201620181316 U CN201620181316 U CN 201620181316U CN 205558605 U CN205558605 U CN 205558605U
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- China
- Prior art keywords
- connecting rod
- fixed
- hole
- rotationally connected
- door
- 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.)
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Abstract
The utility model provides a sliding door mechanism, including hinge structure and rotary damper, hinge structure's one end setting is on the door, and the other end rotates with the door frame to be connected, the junction is rotated at hinge structure to fixed setting of rotary damper, when hinge structure rotates to it rotates to drive rotary damper. Rotary damper can play damping, power -wasting effect, makes hinge sliding door mechanism motion stationary, and is slow, prevents to make equipment suffer damage and user receive the injury because of the door falling speed is fast.
Description
Technical field
This utility model relates to the technical field of a component, especially relates to a kind of door pushing mechanism.
Background technology
Door pushing mechanism is widely used in the necks such as automobile, aviation, medical apparatus and instruments, machine-building
Territory.Linkage is generally used to realize the folding pushed, existing linkage on market
Based on crank mechanism, endplay device and four-bar linkage, linkage be by some just
Property component lower pair or higher pair mechanism couple form.
Complexity with element structure more due to kinematic pair number, makes mechanism in motor process
Likely can produce locking phenomenon, make motor process unstable.In the closing course of door whereabouts,
The bumpy motion of door, falling speed is fast, may cause damage equipment, to user
Damage.
Utility model content
The purpose of this utility model is to provide a kind of door pushing mechanism, to solve in prior art
The door closing motion existed is unstable, the technical problem that closure speed is fast.
The door pushing mechanism that this utility model provides, including hinge arrangement and rotary damper；Hinge
One end of chain structure is arranged on door, and the other end is rotationally connected with doorframe；Rotary damper is solid
Surely it is arranged on hinge arrangement and is rotationally connected place, when hinge arrangement rotates, so that resistance is rotated
Buddhist nun's device rotates.
Further, also including air spring, one end of air spring is rotationally connected with doorframe, separately
One end is rotationally connected with hinge arrangement.
Further, hinge arrangement includes that connecting rod fixed mount, connecting rod fix seat, first connecting rod
And second connecting rod；One end of first connecting rod and one end of second connecting rod all turn with connecting rod fixed mount
Being dynamically connected, the other end is all fixed seat with connecting rod and is rotationally connected, first connecting rod, second connecting rod,
Seat composition four-bar mechanism fixed by connecting rod fixed mount and connecting rod；Rotary damper is fixedly installed on even
Bar is fixed seat and is rotationally connected place with first connecting rod；Connecting rod fixed mount is used for being fixedly mounted on door,
Air spring is rotationally connected away from one end of connecting rod fixed mount with first connecting rod.
Further, hinge arrangement also includes third connecting rod；Third connecting rod one end is with first even
Bar is rotationally connected, and the other end is rotationally connected with second connecting rod.
Further, rotary damper includes fixed part and rotating part；Fixed part is set in rotation
Outside transfer part, and rotating part can rotate relative to fixed part；Fixed part is arranged on connecting rod and fixes seat
On；It is provided with the first rotary shaft, rotating part and the first rotary shaft on first connecting rod to connect.
Further, fixed part is provided with connection sheet, connects and be provided with the first connection on sheet
Hole；Connecting rod is fixed and is provided with the second connecting hole matched with the first connecting hole on seat, utilizes
Screw bolt passes the first connecting hole and the second connecting hole, and with nut coordinate, with will
Fixed part is fixed on connecting rod and fixes on seat.
Further, rotating part be provided centrally with hole clipping, hole clipping and the first rotary shaft clamping.
Further, screw is also included；Connecting rod is fixed seat and is provided with fix corresponding with hole clipping
Hole；The free end of the first rotary shaft is provided with screwed hole, and the first rotary shaft sequentially passes through hole clipping
And fixing hole, screw is located in screwed hole, and the head of screw and connecting rod fix seat away from rotation
The one side turning antivibrator abuts.
Further, first connecting rod is provided with the second rotary shaft, the first rotary shaft and second
New ro-tational axis be arranged on first connecting rod one end away from connecting rod fixed mount；Air spring is arranged
In the second rotary shaft.
Further, connecting rod fixed mount includes the first fixed plate and the second fixed plate；First is solid
Determine plate and the second fixed plate is L-shaped；It is provided with for wearing screw thread in first fixed plate
Through hole；The two ends of the second fixed plate are provided with through hole, for first connecting rod and second even
Bar connects.
The door pushing mechanism that this utility model provides, including hinge arrangement and rotary damper.When
Push whereabouts Guan Bi, and when hinge arrangement rotates, rotary damper can play vibration damping, power consumption
Effect, make hinge door pushing mechanism stable movement, slowly, prevent because door falling speed is fast
Make equipment suffer damage and user comes to harm.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or skill of the prior art
Art scheme, below by detailed description of the invention or description of the prior art required use attached
Figure is briefly described, it should be apparent that, the accompanying drawing in describing below is of the present utility model
Some embodiments, for those of ordinary skill in the art, are not paying creative labor
On the premise of Dong, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the door pushing mechanism that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the exploded perspective view of the door pushing mechanism shown in Fig. 1.
Reference:
1-hinge arrangement；11-first connecting rod；111-the first rotary shaft；
112-the second rotary shaft；12-second connecting rod；13-third connecting rod；
14-connecting rod fixed mount；141-the first fixed plate；142-the second fixed plate；
Seat fixed by 15-connecting rod；151-the second connecting hole；152-fixing hole；
2-rotary damper；21-fixed part；211-connects sheet；
212-the first connecting hole；22-rotating part；221-hole clipping；
3-air spring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely retouched
State, it is clear that described embodiment is a part of embodiment of this utility model rather than complete
The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into this reality
By novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ",
The orientation of the instruction such as D score, "left", "right", " vertically ", " level ", " interior ", " outward "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description
This utility model and simplification describe rather than indicate or imply that the device of indication or element are necessary
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.Additionally, term " first ", " second ", " the 3rd " are only used for retouching
State purpose, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clear and definite regulation
And restriction, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it is possible to
It it is fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For those of ordinary skill in the art
Speech, can understand above-mentioned term concrete meaning in this utility model with concrete condition.
The structural representation of the door pushing mechanism that Fig. 1 provides for this utility model embodiment.Such as figure
Shown in 1, the door pushing mechanism that this utility model provides, including hinge arrangement 1 and damping due to rotation
Device 2；One end of hinge arrangement 1 is arranged on door, and the other end is rotationally connected with doorframe；Rotation
Turn antivibrator 2 to be fixedly installed on hinge arrangement 1 and be rotationally connected place, when hinge arrangement 1 rotates
Time, rotate so that antivibrator 2 is rotated.
Wherein, the doorframe mentioned in the present embodiment includes various ways, such as: automobile trunk
Door conventional in cabinet boxboard in boxboard that case matches with trunk door, equipment or life
Frame etc..
Hinge arrangement 1 has various ways, such as: rocker structure, crank structure or crank
Rocker structure etc..
Bar linkage structure is to be coupled by some rigid member lower pairs or high auxiliary structure to form, due to
Kinematic pair number is more and the complexity of element structure, make structure in motor process likely
Self-locking can be produced, or make motion uneven, not have certain rule to follow.
And rotary damper 2 is fixedly installed in hinge arrangement 1 by the present embodiment, work as hinge
Chain structure 1 rotates and antivibrator 2 is rotated when rotating, and rotary damper 2 can play
Vibration damping, the effect of power consumption, make the stable movement, slowly of hinge arrangement 1, so that door exists
During the Guan Bi that falls, stable movement is slow, improves the safety of door pushing mechanism and stablizes
Property.
Fig. 2 is the exploded perspective view of the door pushing mechanism shown in Fig. 1.As depicted in figs. 1 and 2,
On the basis of above-described embodiment, further, door pushing mechanism also includes air spring 3, gas
One end of spring 3 is rotationally connected with doorframe, and the other end is rotationally connected with hinge arrangement 1.
Wherein it is possible to use air spring bearing pin to be connected on doorframe by air spring 3, and with card
Spring is by air spring bearing pin clamping.
When door opens up, air spring 3 can give certain resistance, makes enabling campaign
Steadily, when being opened to certain angle when pushing, door just can be supported by air spring 3,
It is convenient for people to use.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, hinge
Structure 1 includes that first connecting rod 11, second connecting rod 12, connecting rod fixed mount 14 and connecting rod are fixed
Seat 15；One end of first connecting rod 11 and one end of second connecting rod 12 all with connecting rod fixed mount 14
Being rotationally connected, the other end is all fixed seat 15 and is rotationally connected with connecting rod, first connecting rod 11,
Two connecting rods 12, connecting rod fixed mount 14 and connecting rod are fixed seat 15 and are formed four-bar mechanism；Rotate resistance
Buddhist nun's device 2 is fixedly installed on connecting rod and fixes seat 15 and be rotationally connected place with first connecting rod 11；Connecting rod
Fixed mount 14 is used for being fixedly mounted on door, and air spring 3 and first connecting rod 11 are away from connecting rod
One end of fixed mount 14 is rotationally connected.
Wherein, the material of first connecting rod 11 and second connecting rod 12 can be multiple, such as:
Steel, aluminium alloy, titanium alloy or composite resin etc..
Can use connecting shaft to realize being rotationally connected of air spring 3 and first connecting rod 11, and
With jump ring or utilize the coordinating connecting shaft clamping of screw and screwed hole.
Rotary damper 2 is fixedly installed on connecting rod and fixes the mode on seat 15 and have multiple, such as:
Rotary damper 2 can be welded direct to connecting rod fix on seat 15；Clamping can also be used
Mode rotary damper 2 be fixed to connecting rod fix on seat 15.
The version of connecting rod fixed mount 14 can be multiple, such as: connecting rod fixed mount 14
Can be a rectangular block, top be connected with door, bottom and first connecting rod 11 and second connecting rod
12 connect.Through hole can be threaded on the top of connecting rod fixed mount 14, be fixed by screw
On door, it is also possible to directly connecting rod fixed mount 14 is welded on door；At connecting rod fixed mount
The two ends of the bottom of 14 are respectively provided with the first through hole and the second through hole, in order to first connecting rod 11
It is rotationally connected with second connecting rod 12.
The one end fixing seat 15 away from connecting rod at first connecting rod 11 arranges third through-hole, permissible
Use the first connecting shaft through the first through hole and third through-hole, and with jump ring or utilize screw
With coordinating of screwed hole, the first connecting shaft is blocked, thus it is solid to realize first connecting rod 11 and connecting rod
Determine being rotationally connected of frame 14.
It is respectively provided with fourth hole and fifth hole at the two ends of second connecting rod 12, can use
Second connecting shaft passes the second through hole and fourth hole, and with jump ring or utilize screw and spiral shell
Second connecting shaft is blocked by the cooperation of pit, thus realizes second connecting rod 12 and connecting rod fixed mount
14 be rotationally connected.Fix seat 15 at connecting rod and arrange away from one end of rotary damper 2
Clematis stem hole, can use the 3rd connecting shaft to pass fifth hole and clematis stem hole, and use jump ring
Or utilize screw the 3rd connecting shaft to be blocked with coordinating of screwed hole, thus realize second even
Being rotationally connected of seat 15 fixed by bar 12 and connecting rod.
The version of connecting rod fixed mount 14 can also be: connecting rod fixed mount 14 includes first
Fixed plate 141 and the second fixed plate 142；First fixed plate 141 and the second fixed plate 142
L-shaped；The tapped through hole for wearing screw it is provided with in first fixed plate 141；Second
The two ends of fixed plate 142 are provided with through hole, are used for and first connecting rod 11 and second connecting rod
12 connect.
Wherein, the first fixed plate 141 is used for being fixedly mounted on door, can fix first
It is threaded through hole on plate 141, with screw, the first fixed plate 141 is fixed on door；Also
Directly the first fixed plate 141 can be welded on door.
It is provided with groove, in relative two side of groove on the bottom surface of the second fixed plate 142
7th through hole and the 8th through hole are set on wall, first connecting rod 11 or second connecting rod 12 are put
Enter in groove, through the 7th through hole and third through-hole and wear by another connecting shaft by connecting shaft
Cross the 8th through hole and fourth hole, realize first connecting rod and the second fixed plate and second respectively
Being rotationally connected of connecting rod and the second fixed plate；Can also be by direct to the 7th through hole and the 8th through hole
It is arranged on the side in the second fixed plate 142, by connecting shaft by first connecting rod 11 or second
Connecting rod 12 is connected in the second fixed plate 142.First fixed plate 141 and the second fixed plate
142 can be an entirety, it would however also be possible to employ welding or the connected mode such as threaded are solid
It is scheduled on together.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, hinge
Structure 1 also includes third connecting rod 13；One end of third connecting rod 13 rotates with first connecting rod 11
Connecting, the other end is rotationally connected with second connecting rod 12.
Wherein, the material of third connecting rod 13 can be multiple.Such as: steel, aluminium alloy, titanium
Alloy or composite resin etc..Third connecting rod 13 is in order to first connecting rod 11, second even
Bar 12, connecting rod fixed mount 14 and connecting rod are fixed seat 15 and are constituted parallel rod structure, and raising pushes away
The motility of door mechanism.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, resistance is rotated
Buddhist nun's device 2 includes fixed part 21 and rotating part 22；Fixed part 21 is set in outside rotating part 22,
And rotating part 22 can rotate relative to fixed part 21；Fixed part 21 is arranged on connecting rod and fixes seat
On 15；The first rotary shaft 111, rotating part 22 and the first rotation it is provided with on first connecting rod 11
Rotating shaft 111 connects.It is provided with connection sheet 211 on fixed part 21, connects and arrange on sheet 211
There is the first connecting hole 212；Connecting rod is fixed to be provided with on seat 15 and is matched with the first connecting hole 212
The second connecting hole 151 closed, utilizes screw bolt passes the first connecting hole 212 and second to connect
Connect hole 151, and with nut coordinate, fix seat 15 so that fixed part 21 is fixed on connecting rod
On.Rotating part 22 be provided centrally with hole clipping 221, hole clipping 221 and the first rotary shaft 111
Clamping.Door pushing mechanism also includes screw；Connecting rod is fixed seat 15 and is provided with corresponding to hole clipping 221
Fixing hole 152；The free end of the first rotary shaft 111 is provided with screwed hole, and first rotates
Axle 111 sequentially passes through hole clipping 221 and fixing hole 152, and screw is located in screwed hole, spiral shell
The head of silk is fixed seat 15 and is abutted away from the one side of rotary damper 2 with connecting rod.
Wherein, the first rotary shaft 111 has multiple with the connected mode of first connecting rod 11, such as:
First rotary shaft 111 can be welded on first connecting rod 11；Can also be at first connecting rod
Providing holes on 11, is fixed on first connecting rod 11 by interference fit by the first rotary shaft 111
On；Through hole can also be threaded, correspondingly in the first rotary shaft on first connecting rod 11
One end of 111 arranges external screw thread, is threaded connection and the first rotary shaft 111 is fixed on
On one connecting rod 11 etc..
When door falls Guan Bi, hinge arrangement 1 starts to rotate, and first connecting rod 11 is solid with connecting rod
Reservation 15 starts to relatively rotate, owing to the first rotary shaft 111 is fixed on first connecting rod
On 11, the rotating part 22 of rotary damper 2 is fixing with the first rotary shaft 111 to be connected, and
The fixed part 21 of rotary damper 2 is fixed on connecting rod and fixes on seat 15, therefore, rotates resistance
The fixed part 21 of Buddhist nun's device 2 relatively rotates with rotating part 22, now, and rotary damper
2 produce damping actions, slow down the rotation of hinge arrangement 1, make the closing motion of door slowly,
Steadily, make the falling speed of door slow down, add the safety and stability of door pushing mechanism,
Reduce the percussion to doorframe, it is to avoid user is produced injury.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, first
The second rotary shaft 112, the first rotary shaft 111 and the second rotary shaft 112 it is provided with on connecting rod 11
Be spaced is arranged on first connecting rod 11 one end away from connecting rod fixed mount 14；Air spring 3 sets
Put in the second rotary shaft 112.
Wherein, the second rotary shaft 112 has multiple with the connected mode of first connecting rod 11, such as:
Second rotary shaft 112 can be welded on first connecting rod 11；Can also be in the second rotary shaft
Providing holes on 112, is fixed on first connecting rod 11 by interference fit by the second rotary shaft 112
On；Through hole can also be threaded, correspondingly in the second rotary shaft on first connecting rod 11
One end of 112 arranges external screw thread, is threaded connection and the second rotary shaft 112 is fixed on
On one connecting rod 11 etc..
Second rotary shaft 112 has multiple with the connected mode of air spring 3, such as, second
Rotary shaft 112 is provided with connecting cylinder body on the end face away from one end of second connecting rod 12, even
Connect the equal diameters of cylindrical diameter and the through hole of air spring 3 polished end, by air spring 3
On the through hole set cylinder of polished end, and fix with jump ring or collar；Or the second rotary shaft
The diameter of 112 is equal with the through-hole diameter of air spring 3 polished end, and air spring 3 is enclosed within
In two rotary shafts 112, use jump ring or collar to fix etc. in air spring 3 both sides simultaneously.
It is last it is noted that various embodiments above is only in order to illustrate technology of the present utility model
Scheme, is not intended to limit；Although this utility model being carried out with reference to foregoing embodiments
Detailed description, it will be understood by those within the art that: it still can be to aforementioned
Technical scheme described in each embodiment is modified, or to the most some or all of skill
Art feature carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from this utility model each embodiment technical scheme scope.
Claims (10)
1. a door pushing mechanism, it is characterised in that including: hinge arrangement and rotary damper；One end of described hinge arrangement is arranged on door, and the other end is rotationally connected with doorframe；
Described rotary damper is fixedly installed on described hinge arrangement and is rotationally connected place, when described hinge arrangement rotates, to drive described rotary damper to rotate.
Door pushing mechanism the most according to claim 1, it is characterised in that also including that air spring, one end of described air spring are rotationally connected with described doorframe, the other end is rotationally connected with described hinge arrangement.
Door pushing mechanism the most according to claim 2, it is characterised in that described hinge arrangement includes that connecting rod fixed mount, connecting rod fix seat, first connecting rod and second connecting rod；
One end of described first connecting rod and one end of described second connecting rod are all rotationally connected with described connecting rod fixed mount, the other end is all fixed seat with described connecting rod and is rotationally connected, and seat composition four-bar mechanism fixed by described first connecting rod, described second connecting rod, described connecting rod fixed mount and described connecting rod；
Described rotary damper is fixedly installed on described connecting rod and fixes seat and described first connecting rod and be rotationally connected place；Described connecting rod fixed mount is used for being fixedly mounted on described door, and described air spring is rotationally connected away from one end of described connecting rod fixed mount with described first connecting rod.
Door pushing mechanism the most according to claim 3, it is characterised in that described hinge arrangement also includes third connecting rod；Described third connecting rod one end is rotationally connected with described first connecting rod, and the other end is rotationally connected with described second connecting rod.
5. according to the door pushing mechanism described in any one of claim 3-4, it is characterised in that described rotary damper includes fixed part and rotating part；Described fixed part is set in outside described rotating part, and described rotating part can rotate relative to described fixed part；
Described fixed part is arranged on described connecting rod and fixes on seat；Being provided with the first rotary shaft on described first connecting rod, described rotating part is connected with described first rotary shaft.
Door pushing mechanism the most according to claim 5, it is characterised in that be provided with connection sheet on described fixed part；It is provided with the first connecting hole on described connection sheet；Described connecting rod is fixed and is provided with the second connecting hole matched with described first connecting hole on seat；Utilize the first connecting hole described in screw bolt passes and described second connecting hole, and with the coordinating of nut, fix on seat so that described fixed part is fixed on described connecting rod.
Door pushing mechanism the most according to claim 6, it is characterised in that described rotating part be provided centrally with hole clipping, described hole clipping and described first rotary shaft clamping.
Door pushing mechanism the most according to claim 7, it is characterised in that also include screw；
Described connecting rod is fixed seat and is provided with fixing hole corresponding with described hole clipping；The free end of described first rotary shaft is provided with screwed hole, described first rotary shaft sequentially passes through described hole clipping and described fixing hole, described screw is located in described screwed hole, and the head of described screw is fixed seat and abutted away from the one side of described rotary damper with described connecting rod.
Door pushing mechanism the most according to claim 8, it is characterised in that be arranged on described first connecting rod one end away from described connecting rod fixed mount with being provided with the second rotary shaft, described first rotary shaft and described second new ro-tational axis on described first connecting rod；Described air spring is arranged in described second rotary shaft.
10. according to the door pushing mechanism described in any one of claim 6-9, it is characterised in that
Described connecting rod fixed mount includes the first fixed plate and the second fixed plate；Described first fixed plate and described second fixed plate are L-shaped；
It is provided with for wearing screw thread through hole in described first fixed plate；The two ends of described second fixed plate are provided with through hole, for being connected with described first connecting rod and described second connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181316.XU CN205558605U (en) | 2016-03-09 | 2016-03-09 | Sliding door mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181316.XU CN205558605U (en) | 2016-03-09 | 2016-03-09 | Sliding door mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205558605U true CN205558605U (en) | 2016-09-07 |
Family
ID=56817507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620181316.XU Expired - Fee Related CN205558605U (en) | 2016-03-09 | 2016-03-09 | Sliding door mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205558605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555529A (en) * | 2017-01-05 | 2017-04-05 | 镇江吉凯中电子科技有限公司 | A kind of universal joint type damper hinge |
| CN110242150A (en) * | 2019-07-23 | 2019-09-17 | 深圳市鑫美幻想工程有限公司 | A kind of speed limit automatic open-close door |
-
2016
- 2016-03-09 CN CN201620181316.XU patent/CN205558605U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555529A (en) * | 2017-01-05 | 2017-04-05 | 镇江吉凯中电子科技有限公司 | A kind of universal joint type damper hinge |
| CN106555529B (en) * | 2017-01-05 | 2018-03-27 | 江苏吉凯中科技有限公司 | A kind of universal joint type damper hinge |
| CN110242150A (en) * | 2019-07-23 | 2019-09-17 | 深圳市鑫美幻想工程有限公司 | A kind of speed limit automatic open-close door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |