CN204690180U - A kind of novel plug formula porous hollow fiber membrane spinning head - Google Patents
A kind of novel plug formula porous hollow fiber membrane spinning head Download PDFInfo
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- CN204690180U CN204690180U CN201520434492.5U CN201520434492U CN204690180U CN 204690180 U CN204690180 U CN 204690180U CN 201520434492 U CN201520434492 U CN 201520434492U CN 204690180 U CN204690180 U CN 204690180U
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- feed liquid
- hole
- water conservancy
- conservancy diversion
- spinning head
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The utility model discloses a kind of novel plug formula porous hollow fiber membrane spinning head, comprise water conservancy diversion module and spray silk module two parts, multiple spray silk module is installed in a water conservancy diversion module by screw, forms the hollow tunica fibrosa spinneret of a set of expandable type.Water conservancy diversion module comprises spinning head water conservancy diversion pedestal, core liquid deflector and feed liquid deflector, spray silk module comprises feedboard and spinnerets, the utility model is on the basis not increasing production and processing and assembling difficulty, propose the split-type design of water conservancy diversion module and spray silk module, embody the advantage of digitlization, modularization, flexibility three aspects: digitlization refers on the basis not increasing production, technology, technology difficulty, the infinite expanding of spinneret orifice quantity on a spinning head can be realized, breakthroughly to enhance productivity; Modularization reduces produces and assembling difficulty, and the maintenance realizing individual module is changed, and maintain and replace is easy; Flexibility can realize spinning head production plurality of specifications simultaneously product, meets the demand of client.
Description
Technical field
The utility model relates to technical field of membrane separation, refers more particularly to a kind of novel plug formula porous hollow fiber membrane spinning head.
Background technology
Hollow-fibre membrane is applied to reverse osmosis membrane, microfiltration membranes in membrane separation technique, and the important new material of one of the aspect such as NF membrane and milipore filter, obtains applying more and more widely in fields such as environment-protective water process gradually.Along with the raising required the quality and performance of hollow-fibre membrane, the increase of demand, domestic existing production technology and equipment are more and more difficult to meet Production requirement, most of dependence on import.How to produce high-performance hollow tunica fibrosa and enhance productivity, reducing production cost, become research hollow-fibre membrane field the most popular, be also one of the problem of most critical.The producing shaped process of hollow-fibre membrane, concise and to the point general introduction is exactly that spinning liquid and core liquid are injected spinning head from the diverse location of spinning head pedestal, by the special construction of spinning head inside, from the thread thing of spinning head lid ejection doughnut-be commonly called as film silk.From whole film-forming process, except membrane equipment and effects of process parameters film silk performance, the quality of spinning head directly has influence on some key performances and the parameter of film silk.Therefore, obtain the hollow fiber film thread of suitable dimension, outward appearance and function admirable, the nozzle design of high-quality is top priority.
What current domestic spinning hollow-fibre membrane extensively adopted is single hole spinning head, and these existing spinning heads exist following problem:
Can only go out a rhizoid during spinning of single hole spinning head, production efficiency is extremely low at every turn, can not scale produce in a large number.
Major part the type spinning head complex structure, assembly precision reduces again, affects product quality and wastes a large amount of tune machines and maintenance time.As patent 200420019464.9,2011200281810,200420019464.9,92215496.1,932222865.8,2013200597367, as described in 201420104073 open source informations.
Even multi-holed jet structure, as needle tubing blocking or damage, must change together with the input of feed liquid, core liquid and storage area, waste is very big and replacing is inconvenient; In addition, multi-holed jet to processing technology and required precision high, on existing capacity level, the quantity of same spinning head spinneret orifice is difficult to breakthrough growth.
Utility model content
(1) technical problem that will solve
For solving the problem, the utility model is for above deficiency, on the basis not increasing production and processing and assembling difficulty, propose the split-type design of water conservancy diversion module and spray silk module, the infinite expanding of spinneret orifice quantity on a spinning head can be realized, breakthrough novel plug formula porous hollow fiber membrane spinning head of enhancing productivity.
(2) technical scheme
Of the present utility modelly to be achieved through the following technical solutions: a kind of novel plug formula porous hollow fiber membrane spinning head, comprise water conservancy diversion module and spray silk module two parts, multiple spray silk module is installed in a water conservancy diversion module by screw, it is characterized in that: water conservancy diversion module comprises the spinning head water conservancy diversion pedestal be connected and fixed successively by screw, core liquid deflector and feed liquid deflector, the surrounding of described spinning head water conservancy diversion pedestal and centre are uniformly distributed and are provided with 28 countersunk head screwed holes, described core liquid deflector and feed liquid deflector are being respectively arranged with through hole and screwed hole one with countersunk head screwed hole correspondence position, described spinning head water conservancy diversion pedestal axis place is symmetrically arranged with two core liquid inlets, described core liquid deflector is provided with core liquid material-holding chamber at correspondence described core liquid inlet place, the bottom of described core liquid material-holding chamber both sides is provided with core liquid pod apertures one, a symmetrical groove one is provided with at described core liquid deflector axis place, described feed liquid deflector is provided with the size core liquid pod apertures two slightly larger than core liquid pod apertures one at correspondence described core liquid pod apertures one place, described feed liquid deflector is provided with two feed liquid material-holding chambers and is respectively arranged with in feed liquid deflector two sides the feed liquid inlet being communicated to feed liquid material-holding chamber, each feed liquid material-holding chamber bottom center place is provided with three feed liquid pod apertures, a symmetrical groove two is provided with at axis place, feed liquid deflector top, the spray silk module assembled boss of 6 size equalizations is provided with bottom feed liquid deflector, be uniformly distributed in each described spray silk module assembled boss surrounding and be provided with ten screwed holes two, in addition, described spinning head water conservancy diversion pedestal bilateral symmetry is provided with four installing holes, described spray silk module comprises feedboard and spinnerets, described feedboard surrounding is uniformly distributed and is provided with ten pin holes one and ten through holes two, described spinnerets surrounding correspondence position is provided with pin hole two and screwed hole three, shop bolt is provided with in described pin hole two, trip bolt is provided with in described screwed hole three, described screwed hole three, be secured by bolts on spray silk module assembled boss between through hole two and screwed hole two, described feedboard axis is provided with the feed liquid inflow entrance be connected with feed liquid pod apertures on feed liquid deflector, the core liquid runner be connected with core liquid pod apertures two on feed liquid deflector is provided with in both sides, described feedboard axis, and place is provided with 6 needle tubing installing holes bottom each core liquid runner, needle tubing is provided with in described needle tubing installing hole, cone type feed liquid material-holding chamber is provided with in described spinnerets, the spray silk forming hole corresponding with needle tubing installing hole is provided with in described cone type feed liquid material-holding chamber, needle tubing is located in spray silk forming hole also coaxial with it, described cone type feed liquid material-holding chamber center is provided with the clean mouth with thread, described clean mouth place is provided with O RunddichtringO and plug.
Improve as one, be provided with inside the pin hole one on described feedboard and pin hole two hole on described spinnerets and pulled out slotted eye.
(3) beneficial effect
The utility model, relative to prior art, has following beneficial effect:
The design embodies the advantage of digitlization, modularization, flexibility three aspects: digitlization refers on the basis not increasing production, technology, technology difficulty, can realize the infinite expanding of spinneret orifice quantity on a spinning head, breakthroughly enhances productivity; Modularization reduces produces and assembling difficulty, and realize maintenance and the replacing of individual module, maintain and replace is easy; Flexibility can realize spinning head production plurality of specifications simultaneously product, meets the demand of client greatly.
Accompanying drawing explanation
Fig. 1 is the utility model structure side view.
Fig. 2 is water conservancy diversion module top view.
Fig. 3 is E-E face echelon sectional view in Fig. 2.
Fig. 4 is spinning head water conservancy diversion pedestal axonometric drawing.
Fig. 5 is core liquid deflector.
Fig. 6 is feed liquid deflector.
Fig. 7 is spray silk module top view.
Fig. 8 is A-A face echelon sectional view in Fig. 7.
Fig. 9 is spinnerets top view.
Figure 10 is partial enlarged drawing in Fig. 9.
1-spinning head water conservancy diversion pedestal; 2-core liquid deflector; 3-feed liquid deflector; 4-feedboard; 5-spinnerets; 6-needle tubing; 7-O RunddichtringO; 8-plug; 9-rises and pulls out slotted eye; 11-countersunk head screwed hole; 12-core liquid inlet; 13-installing hole; 21-through hole one; 22-square shaped core liquid material-holding chamber; 23-core liquid pod apertures one; 24-groove one; 31-screwed hole one; 32-core liquid pod apertures two; 33-feed liquid material-holding chamber; 34-feed liquid inlet; 35-feed liquid pod apertures; 36-groove two; 37-sprays silk module assembled boss; 38-screwed hole two; 41-pin hole one; 42-through hole two; 43-feed liquid inflow entrance; 44-core liquid runner; 45-needle tubing installing hole; 51-pin hole two; 52-screwed hole three; 53-cone type feed liquid material-holding chamber; 54-sprays silk forming hole; 55-cleans mouth.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to shown in Fig. 1 to Fig. 9, this hollow tunica fibrosa spinneret, comprise spinning head water conservancy diversion pedestal 1, core liquid deflector 2, feed liquid deflector 3, feedboard 4, spinnerets 5, needle tubing 6, O RunddichtringO 7 and plug 8.Wherein spinning head water conservancy diversion pedestal 1, core liquid deflector 2 and feed liquid deflector 3, is screwed into the locking of countersunk head screwed hole 11, through hole 1 and screwed hole 1 by screw, is fastened together, form water conservancy diversion module.Feedboard 4 and spinnerets 5 are then, first located by pin pressure pin nail 2 51 and pin hole 1, rise pull out slotted eye 9 be in order to get pull out time convenient, then be screwed into screwed hole 3 52 by screw and through hole 2 42 is locked, be fastenedly connected and be installed together, form spray silk module.Multiple spray silk module continues to screw in screwed hole 2 38 by the screw screwing in screwed hole 3 52, is connected and installed in a water conservancy diversion module, forms the hollow tunica fibrosa spinneret of a set of expandable type.
Particularly, as shown in Figures 2 to 4, the surrounding of spinning head water conservancy diversion pedestal 1 and centre are uniformly distributed and are provided with 28 countersunk head screwed holes 11, are provided with two symmetrical core liquid inlets 12 on center shaft.In spinning head water conservancy diversion pedestal 1 bilateral symmetry, four installing holes 13 are set.
As shown in Fig. 2, Fig. 3 to Fig. 5, core liquid deflector 2 surrounding and centre are provided with through hole 1, communicate respectively with countersunk head screwed hole 11 on spinning head water conservancy diversion pedestal 1.Core liquid deflector 2 is symmetrically arranged with two core liquid material-holding chambers 22, and is connected with core liquid inlet 12 on spinning head water conservancy diversion pedestal 1 respectively.2 × 3 × 2 formulas that are provided with in the bottom of two core liquid material-holding chamber 22 both sides distribute 12 core liquid pod apertures 1.And be also provided with a groove 1 at core liquid deflector 2 axis place.
As shown in Fig. 2, Fig. 3 and Fig. 6, feed liquid deflector 3 surrounding and centre are provided with screwed hole 31, communicate respectively with through hole 1 on core liquid deflector 2.The core liquid pod apertures 2 32 feed liquid deflector 3 being provided with 12 sizes slightly a little bigger is connected with the core liquid pod apertures 1 on core liquid deflector 2.Feed liquid deflector 3 is provided with two feed liquid material-holding chambers 33, be communicated with the feed liquid inlet 34 with feed liquid deflector 3 two sides, each feed liquid material-holding chamber 33 bottom center place is provided with three feed liquid pod apertures 35, and is also provided with a groove 2 36 at axis place, feed liquid deflector 3 top.Bottom feed liquid deflector 3, be provided with the spray silk module assembled boss 37 of six size equalizations, be uniformly distributed ten screwed holes 2 38 be provided with for spray silk model calling in each spray silk module assembled boss 37 surrounding.
As shown in Figure 7 and Figure 8, feedboard 4 surrounding is uniformly distributed and is provided with ten pin holes 1 and ten through holes 2 42, and through hole 2 42 communicates with the screwed hole 2 38 on spray silk module assembled boss 37.Feedboard 4 axis is provided with the feed liquid inflow entrance 43 be connected with feed liquid pod apertures 35 on feed liquid deflector 3, and the core liquid runner 44 be connected with core liquid pod apertures 2 32 on feed liquid deflector 3 is provided with in both sides, feedboard 4 axis, and bottom each core liquid runner 44, place is provided with the needle tubing installing hole 45 of six, is provided with needle tubing 6 in needle tubing installing hole 45.
As shown in Figure 7 to 10, spinnerets 5 is uniformly distributed and is provided with ten pin holes 2 51 and ten screwed holes 3 52, communicates respectively with the pin hole 1 on feedboard 4 and through hole 2 42.Cone type feed liquid material-holding chamber 53 is provided with in spinnerets 5, the spray silk forming hole 54 corresponding with needle tubing installing hole 45 is provided with in cone type feed liquid material-holding chamber 53, needle tubing 6 is located in spray silk forming hole 54 also coaxial with it, cone type feed liquid material-holding chamber 53 center is provided with the clean mouth 55 with thread, clean mouth 55 place is provided with O RunddichtringO 7 and plug 8.
In spinning process, feed liquid flows into spinning head from the feed liquid inlet 34 of the feed liquid deflector both sides water conservancy diversion module, enter feed liquid material-holding chamber 33 under pressure, and enter feed liquid pod apertures 35 at the flows by action of gravity and pressure, subsequently, feed liquid enters into the feed liquid inflow entrance 43 of the feedboard of spray silk module, and enters the passage of cone type feed liquid material-holding chamber 53 and spray silk forming hole 54 formation from feed liquid inflow entrance 43, sprays from spray silk forming hole 54 with the form of feed liquid stream.Meanwhile, core liquid flows into spinning head from the core liquid inlet 12 on the spinning head water conservancy diversion pedestal water conservancy diversion module, square shaped core liquid material-holding chamber 22 is entered at the flows by action of pressure and gravity, along with core liquid is in square shaped core liquid material-holding chamber 22 circulation diffusion, the passage that in the core liquid pod apertures 1 of core liquid on core liquid deflector 2, the core liquid pod apertures 2 32 on feed liquid deflector 3 and spray silk module, the core liquid runner 44 of feedboard is formed, flow into and be press-fitted in all-in-one-piece needle tubing 6 with needle tubing installing hole 45, core liquid is flowed out from needle tubing 6.
Because needle tubing 6 diameter is less than the diameter of spray silk forming hole 54, therefore core liquid stream by feed liquid stream around, make feed liquid stream form tubulose, thus form required hollow film fiber silk in operation afterwards.
Water conservancy diversion module assembled, spray silk module assembled, the assembling of spinning head finished product can be carried out as follows according to spinning head of the present utility model.
Water conservancy diversion module assembled: screw is screwed into the locking of countersunk head screwed hole 11, through hole 1 and screwed hole 1 and is assembled into water conservancy diversion module.
Spray silk module assembled: by the needle tubing installing hole 45 on needle tubing 6 press-in feedboard, the spray silk forming hole 54 that other end is located on spinnerets is interior and coaxial with spray silk forming hole 54; Again by pin pressure pin nail 2 51 and pin hole 1 spacing, screw is screwed into screwed hole 3 52 and through hole 2 42 and locks, and is assembled into spray silk module.
Spinning head finished product is assembled: the screw in the multiple spray silk modules described assembling completed screws in locking in the screwed hole 2 38 in water conservancy diversion module, and the water conservancy diversion module completed with described assembling forms spinning head finished product.
Embodiment recited above is only be described preferred embodiment of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept; the various modification that this area ordinary person makes the technical solution of the utility model and improvement; protection domain of the present utility model all should be dropped into; the technology contents of the utility model request protection, all records in detail in the claims.
Claims (2)
1. a novel plug formula porous hollow fiber membrane spinning head, comprise water conservancy diversion module and spray silk module two parts, multiple spray silk module is installed in a water conservancy diversion module by screw, it is characterized in that: water conservancy diversion module comprises the spinning head water conservancy diversion pedestal (1) be connected and fixed successively by screw, core liquid deflector (2) and feed liquid deflector (3), the surrounding of described spinning head water conservancy diversion pedestal (1) and centre are uniformly distributed and are provided with 28 countersunk head screwed holes (11), described core liquid deflector (2) and feed liquid deflector (3) are being respectively arranged with through hole one (21) and screwed hole one (31) with countersunk head screwed hole (11) correspondence position, described spinning head water conservancy diversion pedestal (1) axis place is symmetrically arranged with two core liquid inlets (12), described core liquid deflector (2) is provided with core liquid material-holding chamber (22) at correspondence described core liquid inlet (12) place, the bottom of described core liquid material-holding chamber (22) both sides is provided with core liquid pod apertures one (23), a symmetrical groove one (24) is provided with at described core liquid deflector (2) axis place, described feed liquid deflector (3) is provided with the size core liquid pod apertures two (32) slightly larger than core liquid pod apertures one (23) at correspondence described core liquid pod apertures one (23) place, described feed liquid deflector (3) is provided with two feed liquid material-holding chambers (33) and is respectively arranged with in feed liquid deflector (3) two sides the feed liquid inlet (34) being communicated to feed liquid material-holding chamber (33), each feed liquid material-holding chamber (33) bottom center place is provided with three feed liquid pod apertures (35), a symmetrical groove two (36) is provided with at feed liquid deflector (3) axis, top place, spray silk module assembled boss (37) of 6 size equalizations is provided with in feed liquid deflector (3) bottom, be uniformly distributed in each described spray silk module assembled boss (37) surrounding and be provided with ten screwed holes two (38), in addition, described spinning head water conservancy diversion pedestal (1) bilateral symmetry is provided with four installing holes (13), described spray silk module comprises feedboard (4) and spinnerets (5), described feedboard (4) surrounding is uniformly distributed and is provided with ten pin holes one (41) and ten through holes two (42), described spinnerets (5) surrounding correspondence position is provided with pin hole two (51) and screwed hole three (52), shop bolt is provided with in described pin hole two (51), trip bolt is provided with in described screwed hole three (52), described screwed hole three (52), be secured by bolts in spray silk module assembled boss (37) between through hole two (42) and screwed hole two (38), described feedboard (4) axis is provided with the feed liquid inflow entrance (43) that feed liquid pod apertures (35) upper with feed liquid deflector (3) is connected, the core liquid runner (44) that core liquid pod apertures two (32) upper with feed liquid deflector (3) is connected is provided with in described feedboard (4) both sides, axis, and each core liquid runner (44) bottom place is provided with 6 needle tubing installing holes (45), needle tubing (6) is provided with in described needle tubing installing hole (45), cone type feed liquid material-holding chamber (53) is provided with in described spinnerets (5), the spray silk forming hole (54) corresponding with needle tubing installing hole (45) is provided with in described cone type feed liquid material-holding chamber (53), needle tubing (6) is located in spray silk forming hole (54) also coaxial with it, described cone type feed liquid material-holding chamber (53) center is provided with the clean mouth (55) with thread, described clean mouth (55) place is provided with O RunddichtringO (7) and plug (8).
2. a kind of novel plug formula porous hollow fiber membrane spinning head according to claim 1, is characterized in that: be provided with inside the pin hole one (41) on described feedboard (4) and pin hole two (51) hole on described spinnerets (5) and pulled out slotted eye (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434492.5U CN204690180U (en) | 2015-03-20 | 2015-06-23 | A kind of novel plug formula porous hollow fiber membrane spinning head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015201581651 | 2015-03-20 | ||
| CN201520158165 | 2015-03-20 | ||
| CN201520434492.5U CN204690180U (en) | 2015-03-20 | 2015-06-23 | A kind of novel plug formula porous hollow fiber membrane spinning head |
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| CN204690180U true CN204690180U (en) | 2015-10-07 |
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| CN201520434492.5U Withdrawn - After Issue CN204690180U (en) | 2015-03-20 | 2015-06-23 | A kind of novel plug formula porous hollow fiber membrane spinning head |
| CN201510350251.7A Active CN104894663B (en) | 2015-03-20 | 2015-06-23 | A kind of modular porous hollow fiber membrane spinning head |
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| CN201510350251.7A Active CN104894663B (en) | 2015-03-20 | 2015-06-23 | A kind of modular porous hollow fiber membrane spinning head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894663A (en) * | 2015-03-20 | 2015-09-09 | 上海湛信精密机械有限公司 | Novel module type porous hollow fiber film spinneret |
| CN105671660A (en) * | 2016-04-17 | 2016-06-15 | 上海湛信精密机械有限公司 | Novel top feed liquid inlet multi-hole hollow fiber membrane spinning nozzle |
| CN107366033A (en) * | 2017-08-28 | 2017-11-21 | 东华大学 | A kind of combined spinneret plate |
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| CN105297157B (en) * | 2015-11-17 | 2018-03-06 | 上海湛信科技发展有限公司 | A kind of embedded porous hollow fiber membrane spinning head |
| CN111455473A (en) * | 2020-04-14 | 2020-07-28 | 江阴市合助机械科技有限公司 | Spinneret plate and processing method thereof |
| CN111501116A (en) * | 2020-04-30 | 2020-08-07 | 上海湛信科技发展有限公司 | Hollow fiber membrane spouts a device |
| CN112877798A (en) * | 2021-01-21 | 2021-06-01 | 陈美亦 | Porous multicomponent hollow fiber composite membrane spinning jet |
| CN113046843A (en) * | 2021-04-14 | 2021-06-29 | 盐城市悦驰新材料有限公司 | Non-woven fabrics production is with spouting silk guide nozzle |
| CN115029798A (en) * | 2022-07-28 | 2022-09-09 | 安丹达工业技术(上海)有限公司 | Spinning injection equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3546635B2 (en) * | 1997-03-25 | 2004-07-28 | 東レ株式会社 | Spinneret and spinneret for spinning core-sheath composite fiber |
| TW580526B (en) * | 2000-12-08 | 2004-03-21 | Air Liquide | Spinnerette assembly for forming hollow fibers |
| CN2672089Y (en) * | 2003-12-19 | 2005-01-19 | 上海乐生医疗器械有限公司 | Multi porous spineret assembly for hollow fiber membrane |
| CN201176472Y (en) * | 2007-11-05 | 2009-01-07 | 蒋乃庆 | Single-silk porous hollow fiber film spinneret assembly |
| CN201883191U (en) * | 2010-12-15 | 2011-06-29 | 江苏朗生生命科技有限公司 | Hollow water film combined spinneret plate device |
| CN203583035U (en) * | 2013-10-18 | 2014-05-07 | 北京碧水源膜科技有限公司 | Novel spinneret plate for producing long fiber enhanced hollow fiber membrane |
| CN203999945U (en) * | 2014-07-08 | 2014-12-10 | 北京碧水源膜科技有限公司 | One plate multifibres hollow fibre spinneret |
| CN204690180U (en) * | 2015-03-20 | 2015-10-07 | 上海湛信精密机械有限公司 | A kind of novel plug formula porous hollow fiber membrane spinning head |
-
2015
- 2015-06-23 CN CN201520434492.5U patent/CN204690180U/en not_active Withdrawn - After Issue
- 2015-06-23 CN CN201510350251.7A patent/CN104894663B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894663A (en) * | 2015-03-20 | 2015-09-09 | 上海湛信精密机械有限公司 | Novel module type porous hollow fiber film spinneret |
| CN105671660A (en) * | 2016-04-17 | 2016-06-15 | 上海湛信精密机械有限公司 | Novel top feed liquid inlet multi-hole hollow fiber membrane spinning nozzle |
| CN107366033A (en) * | 2017-08-28 | 2017-11-21 | 东华大学 | A kind of combined spinneret plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104894663B (en) | 2017-03-08 |
| CN104894663A (en) | 2015-09-09 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20171114 |
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| AV01 | Patent right actively abandoned |