CN206000373U - Pulling casement folding multi-functional door - Google Patents
Pulling casement folding multi-functional door Download PDFInfo
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- CN206000373U CN206000373U CN201620613083.6U CN201620613083U CN206000373U CN 206000373 U CN206000373 U CN 206000373U CN 201620613083 U CN201620613083 U CN 201620613083U CN 206000373 U CN206000373 U CN 206000373U
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Abstract
This utility model devises a kind of pulling casement folding multi-functional door, can be used for indoor partition door, door or wardrobe door, and it is made up of hole frame and some door leafs, and hole frame is arranged on wardrobe body or construction wall door opening edge surrounding；Frame upper and lower edge in hole is setting track in horizontal material, horizontal material；Described door leaf is very constituted with door-plate by fanning side, fan side is very gone up equipped with door lock and movable latch, pass through gemel connection between some door leafs, the upper and lower hinge bearing of upper and lower gemel connection, connected by column between upper and lower hinge bearing, upper lower jaw bearing each connects the square tube of a horizontal direction, and about square tube, two ends are provided with vertical wheel and horizontal roller；It overcomes existing wardrobe door or indoor partition door single function, open area less or are opened inconvenient, using inflexible drawback, door can light push-and-pull, can be opened flat, foldable, whole door leafs can be made to set in hole frame left or right, various opening angles are set, compact conformation, good airproof performance, fabrication and installation are convenient.
Description
Technical field
This utility model is related to the door that a kind of metal or plastics or fiberglass or other composites are made, particularly
Improved pulling casement folding multi-functional door, can be used for indoor partition door, door or wardrobe.
Background technology
Seen Door for building has sliding door, vertical hinged door, folding door, rolling screen door at present, and various Men Jun have pros and cons.Push-and-pull
Door is opened and is not taken up space, but open area is little；Vertical hinged door open area is big, but opens and take up space；Foldable door and window, rolling screen door are opened
Area is big, but structure of folding door is not compact, can rock after unlatching, unstable；Rolling screen door opens inconvenience, and sound is big, and structure is multiple
Miscellaneous, account for a head space.Meanwhile, all of door single function, no regulating opening angle wind-guiding function are it is impossible to random open area
Size.
The present inventor in calendar year 2001 to China Intellectual Property Office applied for both can with horizontal sliding, again can with the structural window of outward turning,
Patent No. CN 01231708.X, the applying date：2001.07.18, denomination of invention：A kind of improved slide flat-open multifunction group
Close window, it is by window frame, sash, locating shaft, pull bar, adjustable three shaft rollers, upper and lower slip square tube, alignment pin, curved diagonal brace, fixed
The position part such as knob and screen window composition.Wherein, the upper and lower horizontal frame material of window frame is placed in by the upper and lower alignment pin being arranged on sash
Groove is interior or pulls open disengaging groove, or realizes sash push-and-pull in the pin jack of insertion groove termination, is opened flat and auto-lock function.Its spy
Point be sash opening ways can arbitrarily push-and-pull or be opened flat, can outwards be opened flat 180 °, arbitrarily adjust open area and opening angle.Reach
To the purpose adjusting indoor intake and air intake direction and clean sash two sides indoors.And have self-locking anti-theft, mosquito proof, scratch resistant
Wind breaks the advantages of glass, safe and reliable, good airproof performance clever structure, succinct, flexibly.
2005, the present inventor, on the basis of oneself original No. 01231708 patent, studied existing push-and-pull further and puts down
After some technical schemes of windowing, a kind of push-pull side-hung outward multifunctional door, Chinese patent are invented：
ZL200510019937.4, it is made up of hole frame and some door leafs, and hole frame is arranged on construction wall door opening, on the frame of hole,
It is provided with three axle tracks, sash is by begining to crop up, Bian Ting, door lock, connector are constituted, and sash bot-tom is provided with can be in three axles in lower transverse frame
The roller of movement on track, by pulling Door lock handle, makes the up and down latch of door leaf be placed in the frame upper, lower horizontal frame groove of hole,
Or insertion hole frame two ends lockhole, or departed from groove, it is multi-functional to realize door leaf push-and-pull, self-locking, side-hung outward, when making as door
Used time, can in door leaf lower end installation activity universal wheel, it is characteristic of the invention that door leaf open can push-and-pull, can side-hung outward, complete
Department's sash can along hole frame upper, lower horizontal frame walking and it all can be placed in two ends, door leaf also can arbitrarily adjust open area with
Opening angle, to adjust indoor intake and air intake angle, the convenient two sides of cleaning indoors sash, and have self-locking anti-theft, switch
Flexibly, the advantages of safe and reliable, good seal performance.
2011, after the present inventor studies some technical schemes of existing sliding horizontal-opening window further, and to Chinese knowledge
Property right office has applied for push-pull side-hung outward multifunctional door, Chinese patent：CN201110342372.9, it is by hole frame and some door leafs
Composition, hole frame is arranged on construction wall door opening.Be provided with horizontal frame track hole frame is upper and lower, door leaf be provided with upper and lower begin to crop up, axle
Bian Ting, pin are being endured and are very being gone up equipped with door lock in pin, and it is left and right that two fan door leafs are connected to column by the hinges that axle side is very gone up
Both sides are as an assembled unit body.Column upper/lower terminal is provided with peace in the middle of roller movably "T"-shaped slide block, column
Equipped with positioning lock, it broken existing building door single function, open area less or open inconvenient, using dumb or
The drawbacks of structure is compact, door have unlatching convenient, flexibly, can push-and-pull, can be opened flat, can outward turning (or inward turning), can locally open,
And whole door leafs can be made can to set in hole frame one end, can arrange adjustment various opening angles, can wind-guiding enter the room, multi-angle sunshade,
The advantages of easy to clean, safety, fabrication and installation are easier.
But this push-pull side-hung outward multifunctional door above-described also exist installation not convenient, profile is not attractive in appearance,
Structure is not compact, and sealing is not good, the drawbacks of operation is not easy, particularly when being used for wardrobe door or indoor
Door field is in addition it is also necessary to more light succinct, easier for installation, the structure design of better tightness.
Content of the invention
The purpose of this utility model is for current pulling casement folding multi-functional door, particularly wardrobe door, or interior
Door field, also presence installation is not light, and profile is not attractive in appearance, and structure is not compact, the imperfect drawback of sealing, therefore
Design a kind of improved pulling casement folding multi-functional door.
The technical solution of the utility model is realized in：
Pulling casement folding multi-functional door, is made up of hole frame and some door leafs, hole frame is arranged on wardrobe body or building wall
On body door opening, frame upper and lower edge in hole is setting track in horizontal material, horizontal material, fans side by gemel connection and endure between some door leafs
Combine, the upper and lower hinge bearing of upper and lower gemel connection, connected by column between upper and lower hinge bearing, upper and lower hinge
Bearing each connects the square tube of a horizontal direction, and square tube rear and front end is provided with vertical wheel and horizontal roller, and vertical wheel can
Roll walking along track, horizontal roller can roll walking along transverse section medial wall.
Described door leaf is very formed with door-plate by fanning side, and door leaf can be a number of, the material of door-plate can be glass or
Plank etc. makes.
Several gemel connections are passed through between enduring in the fan side of described door leaf, make some door leafs form an assembled unit body.
Fan side very on door lock and movable latch are installed.
Respectively there is a projecting rib at the described hinge both sides leaf of hinge back side, and described fan side is endured in section and projected with hinge accordingly
Rib contact portion arranges a groove.Leaf of hinge is very connected by screw with fan side, and projecting rib is adjacent to groove, when door leaf rotates
When, a part of moment of torsion can pass to fan side groove very by projecting rib by leaf of hinge, it is to avoid screw stress is excessive and hold
Caducous situation.
Described square tube rear and front end is provided with vertical wheel and horizontal roller.Roller is arranged in upper, lower horizontal material, can be along horizontal stroke
Material inwall slides, and makes combination door leaf cell cube realize moving horizontally.In wherein every layer horizontal material, setting number of tracks is 4, up and down
Each two.For relatively only having the design of lower railway, upper lower railway can make roller motion be limited by above-below direction, makes door leaf
Motion is more steady.
Horizontal material can be single layer structure, or double-decker, and therefore door leaf can be one group of form of monolayer, or double
Two groups of form of layer are all achievable.
The slip effect in upper, lower horizontal frame track of described vertical wheel and horizontal roller realize hinge, hinge bearing,
Column is moved left and right together with door leaf, make door leaf realize push-and-pull, be opened flat, folder function.Wherein when fan side is endured all in 0 ° of state
When, column can be hidden between two fan sides are endured and not be emerging in appearance, make terminal with compact integral structure attractive in appearance.
The above pulling casement folding multi-functional door is endured middle part on door leaf fan side and is put a door lock.Door lock passes through upper and lower two
Steel bar is connected with latch.Door lock is fixed on fan side by lock panel and endures on outer surface.It is provided with a groove, handle in the middle of lock panel back
On groove top, in groove, lower end is provided with support.One axis passes through bracket holes and handle hole, then anti-at the flat position in axis two ends
To being fixedly connected two lock connecting rods, when so that handle is pulled downwards, drive central axis, so that two ends is locked connecting rod and pull and connect steel bar
Upper and lower motion, is provided with back-moving spring in the bracket, and handle is loosened rear handle and resetted by the strength of back-moving spring.
Above-described pulling casement folding multi-functional door, the fan side of door leaf is endured upper and lower end and is provided with and is connected with door lock
Movable latch.It is made up of plug housing, latch, movable spring.Latch is arranged on inside plug housing, is mounted with one in plug housing and lives
Move spring, make the latch can be in the upper and lower motion of plug housing inner chamber, reset.Latch is connected with door lock steel bar, so that being held by door lock
Pull the upper and lower motion of dynamic latch.Two plug housings are separately fixed at door leaf fan side and endure upper and lower end.
The described door leaf fan side door lock very that is arranged on is connected with upper and lower movable latch, is made upper and lower by the dynamic Door lock handle of plate
Latch inserts in horizontal material inner chamber, realizes door leaf and opens and closes the function of folding.Wherein upper and lower latch inserts the end in horizontal material
Face is the inclined-plane in oblique door, when door leaf needs to fold, pulls handle, horizontal material inner chamber extracted out by upper and lower latch, you can pull door
Fan, open collapsible function；When door leaf will cut out folding, only need to by door leaf cycle, when latch contact of incline plane is to horizontal material edge,
Gradually by fight back plug housing, when completely closing, horizontal material inner chamber returned by latch, need not pull handle on latch inclined-plane.
After the above latch end face is designed to inclined-plane, horizontal material sectional twisting angle then may be designed to perpendicular type, relatively before
The horizontal material chamfer cross-section of design, saves the material of horizontal frame and the width in horizontal frame section, and the horizontal material section of perpendicular type is more sharp
In the sealing of whole door leaf, along with the seal weatherstrip of insertion on section bar, intercept the pollutant such as dust, moisture and entered in introduction.
The total design of this utility model is：It is made up of hole frame and some door leafs, hole frame is arranged on wardrobe body or building wall
On body door opening, frame upper and lower edge in hole is horizontal material.It is characterized in that：Setting track in horizontal material, door leaf fan side very equipped with door lock and
Movable latch, passes through gemel connection between some door leafs, the upper and lower hinge bearing of upper and lower gemel connection, upper and lower hinge bearing it
Between connected by column, upper and lower hinge bearing each connects the square tube of a horizontal direction, and square tube rear and front end is provided with vertical rolling
Wheel and horizontal roller.To realize assembled unit body door leaf push-and-pull and to be opened flat, folder function conversion, by pull door leaf fan side very go up
Door lock handle and movable latch linkage effect.Realize the auto-lock function of door leaf.Realize open area big, save Interior Space
Between, facilitate the purpose of opening door operation.Above-mentioned content of the invention is the present inventor in some technology studying existing sliding horizontal-opening window
After scheme, special in oneself original CN01231708.X patent, ZL200510019937.4 patent and CN201110342372.9
On the basis of profit, through repetition test, to some section bar sections, roller, structure, rotating member and movable latch and overall invention
The key positions such as structure are improved, the pulling casement folding multi-functional door again invented and design, and it has broken existing
There are Door for building single function, open area less or open and not facilitate, using the not compact disadvantage of underaction or structure
End, have unlatching convenient, flexibly, can push-and-pull, can be opened flat, foldable, can locally open and whole door leafs can be made can to set in hole
Frame one end, can arrange adjustment various opening angles, can wind-guiding enter the room, multi-angle sunshade the advantages of.Easy to clean, safety, making
The advantages of install easier.Especially with I before patent 200510019937.4 and CN201110342372.9 patented technology phase
Than, adaptability is wider, installs more convenient, good looking appearance, compact conformation, better tightness, and operation is easier, and push-and-pull is more convenient,
Cost of manufacture is lower.
Brief description
Fig. 1 is door leaf of the present invention and the positive facade main view of each part（The horizontal frame of monolayer）；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is B-B sectional view (the door leaf closed mode of Fig. 1）；
Fig. 4 is B-B sectional view (the door leaf folded state of Fig. 1）；
Fig. 5 is door leaf of the present invention and the positive facade main view of each part（Double-layer horizontal frame）；
Fig. 6 is the A-A sectional view of Fig. 5；
Fig. 7 is B-B sectional view (the door leaf closed mode of Fig. 5）；
Fig. 8 is B-B sectional view (the door leaf folded state of Fig. 5）；
Fig. 9 is door lock front of the present invention front view；
Figure 10 is door lock side sectional view of the present invention；
Figure 11 is movable latch sectional view of the present invention；
Figure 12 is hinge bearing, hinge, square tube, roll wheel assembly front front view；
Figure 13 is hinge bearing, hinge, square tube, roll wheel assembly side view；
Figure 14 is hinge bearing, column, square tube, roll wheel assembly front front view；
Figure 15 is hinge bearing, column, square tube, roll wheel assembly top view；
Figure 16 is hinge, hinge bearing, column, fan side very assembly vertical view cutaway drawing；
Figure 17 monolayer horizontal frame sectional drawing；
Figure 18 double-layer horizontal frame sectional drawing.
Specific embodiment
Describe construction of the present utility model and function implementation principle below by way of accompanying drawing in detail.
Embodiment one：
This utility model is by horizontal material 1, fan side very 2, door-plate 3, column 7, hinge bearing 5, hinge 6, square tube 10, vertical rolling
The major parts such as wheel 9, horizontal roller 8, door lock 4, movable latch 11 composition, hole frame is arranged on wardrobe body or construction wall door opening
On mouth, frame upper and lower edge in hole is setting track 12 in horizontal material 1, horizontal material, passes through hinge 6 and connect very 2 groups of fan side between some door leafs
It is combined, upper and lower hinge 6 connects upper and lower hinge bearing 5, is connected by column 7, upper and lower conjunction between upper and lower hinge bearing 5
Page bearing 5 each connects the square tube 10 of a horizontal direction, and square tube rear and front end is provided with vertical wheel 9 and horizontal roller 8, vertically
Roller 9 is contained in and rolls on upper, lower horizontal frame track 12, and horizontal roller 8 can roll walking along horizontal material 1 medial wall.
By fanning side very 2 and door-plate 3 forms, door leaf can be a number of to described door leaf, and the material of door-plate can be glass
Or plank etc. makes.
The fan side of described door leaf is connected by several hinges 6 between enduring, and makes some door leafs form an assembled unit body.
Fan side very on door lock 4 and movable latch 11 are installed.
Respectively there is a projecting rib 23 at described hinge 6 both sides leaf of hinge 24 back side, accordingly described fan side endure 2 sections in conjunction
Page projecting rib 23 contact portion arranges a groove.Leaf of hinge 24 very 2 is connected by screw with fan side, and projecting rib 23 is pasted with groove
Tightly, when door leaf rotates, a part of moment of torsion can be passed to the groove on fan side very 2 by leaf of hinge 24 by projecting rib 23, it is to avoid
Screw stress is excessive and holds caducous situation.
Described vertical wheel 9 and horizontal roller 8 slip effect in upper, lower horizontal frame 1 are realized hinge 6, hinge bearing 5, are stood
Post 7 is moved left and right together with door leaf, make door leaf realize push-and-pull, be opened flat, folder function.Wherein when fan side very 2 is all in 0 ° of state
When, column can be hidden in and not be emerging in appearance between two fan sides very 2, make terminal with compact integral structure attractive in appearance.
Put a door lock 4 in the middle part of door leaf fan side very 2.Door lock 4 is connected with latch 21 by upper and lower two steel bars 18.Door lock 4
It is fixed on fan side by lock panel 13 to endure on 2 outer surfaces.Be provided with a groove in the middle of lock panel 13 back, handle 14 on groove top,
In groove, lower end is provided with support 15.One axis 16 passes through bracket holes and handle hole, then reversely solid at the flat position in axis 16 two ends
Surely connect two lock connecting rods 17, when so that handle 14 is pulled downwards, drive axis 16 to rotate, so that two ends is locked connecting rod 17 and pull and connect steel
The upper and lower motion of bar 18, is provided with back-moving spring 19 in support 15, and handle loosens the power that rear handle 14 passes through back-moving spring 19
Amount resets.
The fan side of door leaf is endured 2 upper and lower ends and is provided with the movable latch 11 being connected with door lock 4.It is by plug housing 20, latch
21st, movable spring 22 forms.Latch 21 is arranged on inside plug housing 20, is mounted with a movable spring 22 in plug housing 20, makes to insert
Pin 21 can be in the upper and lower motion of plug housing 20 inner chamber, reset.Latch 21 is connected with steel bar 18, so that being drawn by Door lock handle 14
The upper and lower motion of dynamic latch 21.Two plug housings 20 are separately fixed at the upper and lower end that side very 2 fanned by door leaf.
It is arranged on door leaf fan side door lock 4 very to be connected with upper and lower movable latch 11, made by the dynamic Door lock handle 14 of plate,
Lower latch 21 inserts in horizontal material 1 inner chamber, realizes door leaf and opens and closes the function of folding.Wherein upper and lower latch 21 inserts horizontal material
End face in 1 is the inclined-plane in oblique door, when door leaf needs to fold, pulls handle 14, upper and lower latch 21 is extracted out in horizontal material
Chamber, you can pull door leaf, open collapsible function；When door leaf will cut out folding, only need to be by door leaf cycle, when latch contact of incline plane
During to horizontal material 1 edge, gradually by fight back plug housing 20, when completely closing, horizontal material 1 inner chamber returned by latch, need not pull on latch inclined-plane
Dynamic handle 14, now door leaf then cannot fold, realize door leaf self-locking.Door leaf can be along the track of upper, lower horizontal material simultaneously（12）Level
Run to any one end.Also hole frame two ends can be pushed into by fully open for door leaf, reach door leaf open area to greatest extent.
After latch 21 end face is designed to inclined-plane, horizontal material 1 sectional twisting angle then may be designed to perpendicular type, relatively conventional design
Horizontal material chamfer cross-section, saves the material of horizontal frame and the width in horizontal frame section, and the horizontal material section of perpendicular type is more conducive to entirely
The sealing of door leaf, along with the seal weatherstrip of insertion on section bar, has intercepted the pollutant such as dust, moisture and has entered in introduction.
Claims (10)
1. a kind of pulling casement folding multi-functional door, is made up of hole frame and some door leafs, hole frame is arranged on wardrobe body or building
On body of wall door opening, frame upper and lower edge in hole is horizontal material（1）It is characterised in that：Setting track in horizontal material（12）, described door leaf
Endured by fan side（2）And door-plate（3）Constitute, the fan side of door leaf is endured（2）Equipped with door lock（4）And movable latch（11）, some door leafs lead to
Cross hinge（6）It is arranged on fan side to endure（2）On, the hinge on top（6）Connect top hinge bearing（5）, the hinge of bottom（6）Connect
Bottom hinge bearing（5）, the hinge bearing of bottom and bottom（5）Between pass through column（7）Connect, the hinge of bottom and bottom props up
Seat（5）Each Subnormal subgroup connects the square tube of a horizontal direction（10）, square tube rear and front end is provided with vertical wheel（9）And horizontal roller
（8）；Described hinge bearing（5）With square tube（10）Between be orthogonal be fixedly connected, column（7）With hinge bearing（5）Between be
It is fixedly connected.
2. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Every layer of horizontal material（1）Interior setting rail
Road（12）Quantity is 4, each two up and down.
3. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Described hinge（6）Both sides hinge
Piece（24）Respectively there is a projecting rib at the back side（23）.
4. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Described fan side is endured（2）In section
With hinge projecting rib（23）Contact portion setting is fluted.
5. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Described column（7）Close in door leaf
When closing, can be endured by fan side（2）It is closed in fan side to endure（2）Between space in.
6. pulling casement folding multi-functional door according to claim 1 it is characterised in that：It is arranged on square tube（10）On water
Flat roller (8) and vertical wheel (9) are fixed on the two ends of square tube by bearing and axle；Horizontal roller (8) can be along horizontal material（1）Inwall
Horizontal rolling, vertical wheel (9) can be along horizontal material（1）Inner orbit rolls.
7. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Horizontal material（1）It is single layer structure, or
Person is double-decker；Horizontal material（1）Double-decker is horizontal material in the outer part（1）Position is relatively low, and horizontal material (1) position is higher in the inner part, shape
Become low inside and high outside step.
8. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Fan side is endured and is arranged door in the middle part of (2)
Lock (4), door lock is by lock panel (13), handle (14), support (15), axis（16）, lock connecting rod (17), back-moving spring (19) group
Become；Lock panel (13) is fixed on fan side and endures on (2) outer surface, is provided with a groove, handle (14) exists in the middle of lock panel (13) back
Groove top, in groove, lower end is provided with support (15), and an axis (16) passes through bracket holes and handle hole, then in axis (16) two
Hold and at flat position, be reversely fixedly connected two locks connecting rod (17), support (15) is provided with back-moving spring (19).
9. pulling casement folding multi-functional door according to claim 1 it is characterised in that：Very (2) are upper and lower on fan side is provided with
The movable latch (11) being connected with door lock (4), it is by steel bar (18), plug housing (20), latch (21), movable spring (22) group
Become, latch (21) the lock connecting rod of steel bar (18) and door lock (4)（17）It is connected, two plug housings（20）It is separately fixed at door leaf
Fan side endure（2）Upper and lower end.
10. pulling casement folding multi-functional door according to claim 9 it is characterised in that：Latch（21）Insert horizontal material（1）
In end face be the inclined-plane being tilted towards an inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613083.6U CN206000373U (en) | 2016-06-21 | 2016-06-21 | Pulling casement folding multi-functional door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613083.6U CN206000373U (en) | 2016-06-21 | 2016-06-21 | Pulling casement folding multi-functional door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000373U true CN206000373U (en) | 2017-03-08 |
Family
ID=58204597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620613083.6U Expired - Fee Related CN206000373U (en) | 2016-06-21 | 2016-06-21 | Pulling casement folding multi-functional door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088953A (en) * | 2016-06-21 | 2016-11-09 | 陆中选 | Pulling casement folding multi-functional door |
-
2016
- 2016-06-21 CN CN201620613083.6U patent/CN206000373U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088953A (en) * | 2016-06-21 | 2016-11-09 | 陆中选 | Pulling casement folding multi-functional door |
| CN106088953B (en) * | 2016-06-21 | 2018-03-13 | 陆中选 | Pulling casement folding multi-functional 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: 20170308 Termination date: 20180621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |