CN204628145U - A kind of integrated oil cylinders - Google Patents
A kind of integrated oil cylinders Download PDFInfo
- Publication number
- CN204628145U CN204628145U CN201520017325.0U CN201520017325U CN204628145U CN 204628145 U CN204628145 U CN 204628145U CN 201520017325 U CN201520017325 U CN 201520017325U CN 204628145 U CN204628145 U CN 204628145U
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- cylinder barrel
- hydraulic fluid
- fluid port
- piston
- seal
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Abstract
The utility model discloses a kind of integrated oil cylinders, comprise the first cylinder body that is parallel, that be oppositely arranged and the second cylinder body, first cylinder body is connected by connecting bottom board with the second cylinder body, in first cylinder body and the second cylinder body, piston rod, guide sleeve are set respectively, two piston rods install piston respectively, and fix with rear nut, plunger one end in second cylinder body is welded and fixed plug, hydraulic fluid port seat is fixedly welded on one end of weldless tube, the other end of weldless tube is placed in the endoporus of plug, and be integrated by being welded to connect, hydraulic fluid port seat is fixedly welded on one end of the second piston rod.Model utility compact structure, the hydraulic fluid port interconnection of integrated oil cylinders, turnover oil duct is reasonable in design, and piston rod can realize bi-directional expansion motion in integrated oil cylinders, increases the working stroke of oil cylinder, is suitable for practicality.
Description
Technical field
The utility model belongs to oil cylinder field, especially a kind of integrated oil cylinders of engineering field.
Background technique
The oil cylinder overwhelming majority that current engineering uses is monomer oil cylinder, the advantage of monomer oil cylinder is that structure is simple, cost is low, its shortcoming is that working stroke is shorter, piston rod can not carry out bi-directional expansion, the needs in some special engineering fields can not be met well, therefore need a kind of practical integrated oil cylinders of bi-directional expansion.
Model utility content
The purpose of this utility model is to provide a kind of integrated oil cylinders, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of integrated oil cylinders, comprise the first cylinder barrel, second cylinder barrel, one end of described first cylinder barrel is welded and fixed the first cylinder barrel bonnet, one end of the relative first cylinder barrel bonnet of described second cylinder barrel is welded and fixed the second cylinder barrel bonnet, described first cylinder barrel, second cylinder barrel is parallel, be oppositely arranged, together with the outer wall of described first cylinder barrel and the second cylinder barrel is welded and fixed by some connecting bottom boards, described first cylinder barrel offers the first oilhole and the 6th oilhole respectively near two ends place, described first cylinder barrel outer wall is welded with the three external hydraulic fluid port corresponding with the first oilhole and the 6th oilhole and the first external hydraulic fluid port, described second cylinder barrel offers the 3rd oilhole and the 5th oilhole near two ends place, described second cylinder barrel outer wall is welded with the corresponding with the 3rd oilhole and the 5th oilhole oil-collecting hole and the second external hydraulic fluid port all round, described first external hydraulic fluid port connects the second external hydraulic fluid port by the first oil pipe, described 3rd external hydraulic fluid port connects the oil-collecting hole all round by the second oil pipe,
First piston bar is provided with in described first cylinder barrel, first piston is installed in one end of described first piston bar, and it is fixing to be undertaken being threaded by the first rear nut, the second piston rod is provided with in described second cylinder barrel, the second piston is installed in one end of described second piston rod, and it is fixing to be undertaken being threaded by the second rear nut, one end inner chamber installing the second rear nut at described second piston rod is welded and fixed plug, weldless tube is provided with in described second piston rod, hydraulic fluid port seat is threaded with one end of described weldless tube, and be integrated by being welded to connect, the other end of described weldless tube is placed in the endoporus of described plug, and be integrated by being welded to connect, meanwhile described hydraulic fluid port seat is threaded with one end of the second piston rod, and be integrated by being welded to connect.
Preferably, one end that described first piston bar stretches out the first cylinder barrel is led through be provided with in the first cylinder barrel first
To cover.
Preferably, one end that described second piston rod stretches out the second cylinder barrel is led through be provided with in the second cylinder barrel second
To cover.
Preferably, described four connecting bottom boards lay respectively at the both sides of the outer wall of described first cylinder barrel and the second cylinder barrel between two for a pair.
Preferably, described first piston is provided with two the first seal grooves in the cooperation place with the first cylinder barrel, dynamic seal ring is placed in described first seal groove, described first piston is provided with two the second seal grooves in the cooperation place with first piston bar, described first cylinder barrel is provided with two the 3rd seal grooves in the cooperation place with the first guide sleeve, all seal ring is placed in second seal groove and the 3rd seal groove, described first guide sleeve is provided with the first guiding trough of belt from inside to outside successively in the cooperation place with first piston bar, 4th seal groove, first dust-proof ring recess, described first guiding trough of belt, 4th seal groove, guidance tape is placed respectively in first dust-proof ring recess, seal ring, dust ring.
Preferably, described second piston is provided with two the 7th seal grooves in the cooperation place with the second cylinder barrel, described second piston is provided with the 3rd guiding trough of belt between two the 7th seal grooves, described 7th seal groove and the 3rd guiding trough of belt place dynamic seal ring respectively, guidance tape, described second piston is provided with two the 8th seal grooves in the cooperation place with the second piston rod, described second guide sleeve is provided with two the 5th seal grooves in the cooperation place with the second cylinder barrel, all seal ring is placed in described 8th seal groove and the 5th seal groove, described second guide sleeve is provided with the second dust-proof ring recess from outside to inside successively in the cooperation place with the second piston rod, 6th seal groove, second guiding trough of belt, described second dust-proof ring recess, 6th seal groove, dust ring is placed respectively in second guiding trough of belt, dynamic seal ring, guidance tape.
Preferably, the both sides of described hydraulic fluid port seat inside are respectively equipped with a 5th external hydraulic fluid port, the 6th external hydraulic fluid port, described 5th external hydraulic fluid port is connected with the first oil duct, described first oil duct is connected with the second oil duct, described second oil duct aligns without with the inner chamber of slit-tube, described 6th external hydraulic fluid port is connected with the 3rd oil duct, and described 3rd oil duct is connected with the 4th oil duct.
Compared with prior art, the beneficial effects of the utility model are:
First cylinder body and the second cylinder body are connected by connecting bottom board by the utility model, compact structure, the first cylinder barrel and the second cylinder oil port interconnection, turnover oil duct is reasonable in design, piston rod can realize bi-directional expansion motion in integrated oil cylinders, increases the working stroke of oil cylinder, is suitable for practicality.
Accompanying drawing explanation
Fig. 1 is axonometric drawing of the present utility model.
Fig. 2 is main pseudosection of the present utility model.
Fig. 3 is top plan view of the present utility model.
Fig. 4 is the part sectioned view of the utility model the 6th oilhole.
In figure, 1-hydraulic fluid port seat, the external hydraulic fluid port of 2-first, the external hydraulic fluid port of 21-second, the external hydraulic fluid port of 22-the 3rd, 23-oil-collecting hole all round, 3-connecting bottom board, 4-first oil pipe, 5 first cylinder barrels, 6-second cylinder barrel bonnet, 61-first cylinder barrel bonnet, 7-first piston bar, 8-second oil pipe, 9-second cylinder barrel, 10-first rear nut, 11-first piston, 12-first seal groove, 13-second seal groove, 14-first oilhole, 141-second oilhole, 142-the 3rd oilhole, 143-the 4th oilhole, 144-the 5th oilhole, 145-the 6th oilhole, 15-the 3rd seal groove, 16-first leads trough of belt, 161-second leads trough of belt, 17-the 3rd leads trough of belt, 18-the 4th seal groove, 19-first guide sleeve, the dust-proof ring recess of 20-first, 24-second guide sleeve, 25-weldless tube, 26-second piston rod, 27-second piston, 28-the 8th seal groove, 29-second rear nut, 30-plug, the external hydraulic fluid port of 31-the 6th, 32-the 3rd oil duct, 33-first oil duct, the external hydraulic fluid port of 34-the 5th, 35-second oil duct, 36-the 4th oil duct, the dust-proof ring recess of 37-second, 38-the 6th seal groove, 39-the 5th seal ring, 40-the 7th seal ring, 41-first rodless cavity, 42-first rod chamber, 43-second rodless cavity, 44-second rod chamber.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 4, in the utility model embodiment, a kind of integrated oil cylinders, comprise the first cylinder barrel 9, second cylinder barrel 5, one end of described first cylinder barrel 9 is welded and fixed the first cylinder barrel bonnet 61, one end of the relative first cylinder barrel bonnet 61 of described second cylinder barrel 5 is welded and fixed the second cylinder barrel bonnet 6, described first cylinder barrel 9, second cylinder barrel 5 is parallel, be oppositely arranged, together with the outer wall of described first cylinder barrel 9 and the second cylinder barrel 5 is welded and fixed by four connecting bottom boards 3, described four connecting bottom boards 3 lay respectively at the both sides of the outer wall of described first cylinder barrel 9 and the second cylinder barrel 5 between two for a pair.
Described first cylinder barrel 9 offers the first oilhole 14 and the 6th oilhole 145 respectively near two ends place, described first cylinder barrel 9 outer wall is welded with three external hydraulic fluid port 22 and the first external hydraulic fluid port 2 corresponding with the first oilhole 14 and the 6th oilhole 145, described second cylinder barrel 5 offers the 3rd oilhole 142 and the 5th oilhole 144 near two ends place, described second cylinder barrel 5 outer wall is welded with the corresponding with the 3rd oilhole 142 and the 5th oilhole 144 oil-collecting hole 23 and the second external hydraulic fluid port 21 all round, described first external hydraulic fluid port 2 connects the second external hydraulic fluid port 21 by the first oil pipe 4, described 3rd external hydraulic fluid port 22 connects the oil-collecting hole 23 all round by the second oil pipe 8.
First piston bar 7 is provided with in described first cylinder barrel 9, a part for described first piston bar 7 stretches out the outside of the first cylinder barrel 9, another part stretches in the first cylinder barrel 9, first piston 11 is installed in one end that described first piston bar 7 stretches into the first cylinder barrel 9, and it is fixing to be undertaken being threaded by the first rear nut 10, described first piston bar 7 stretches out one end of the first cylinder barrel 9 through the first guide sleeve 19 be provided with in the first cylinder barrel 9, and the outside thread on described first guide sleeve 19 is threaded with the internal thread that the first cylinder barrel 9 is offered.Described first piston 11 is provided with two the first seal grooves 12 in the cooperation place with the first cylinder barrel 9, dynamic seal ring is placed in described first seal groove 12, described first piston 11 is provided with two the second seal grooves 13 in the cooperation place with first piston bar 7, described first cylinder barrel 9 is provided with two the 3rd seal grooves 15 in the cooperation place with the first guide sleeve 19, all seal ring is placed in second seal groove 13 and the 3rd seal groove 15, described first guide sleeve 19 is provided with the first guiding trough of belt 16 from inside to outside successively in the cooperation place with first piston bar 7, 4th seal groove 18, first dust-proof ring recess 20, described first guiding trough of belt 16, 4th seal groove 18, guidance tape is placed respectively in first dust-proof ring recess 20, seal ring, dust ring.
The second piston rod 26 is provided with in described second cylinder barrel 5, a part for described second piston rod 26 stretches out the outside of the second cylinder barrel 5, another part stretches in the second cylinder barrel 5, the second piston 27 is installed in one end that described second piston rod 26 stretches into the second cylinder barrel 5, and it is fixing to be undertaken being threaded by the second rear nut 29, described second piston rod 26 stretches out one end of the second cylinder barrel 5 through the second guide sleeve 24 be provided with in the second cylinder barrel 5, and the outside thread on described second guide sleeve 24 is threaded with the internal thread that the second cylinder barrel 5 is offered.Described second piston 27 is provided with two the 7th seal grooves 40 in the cooperation place with the second cylinder barrel 5, described second piston 27 is provided with the 3rd guiding trough of belt 17 between two the 7th seal grooves 40, described 7th seal groove 40 and the 3rd guiding trough of belt 17 place dynamic seal ring respectively, guidance tape, described second piston 27 is provided with two the 8th seal grooves 28 in the cooperation place with the second piston rod 26, described second guide sleeve 24 is provided with two the 5th seal grooves 39 in the cooperation place with the second cylinder barrel 5, all seal ring is placed in described 8th seal groove 28 and the 5th seal groove 39, described second guide sleeve 24 is provided with the second dust-proof ring recess 37 from outside to inside successively in the cooperation place with the second piston rod 26, 6th seal groove 38, second guiding trough of belt 161, described second dust-proof ring recess 37, 6th seal groove 38, dust ring is placed respectively in second guiding trough of belt 161, dynamic seal ring, guidance tape.
One end inner chamber that described second piston rod 26 installs the second rear nut 29 is welded and fixed plug 30, weldless tube 25 is provided with in described second piston rod 26, hydraulic fluid port seat 1 is threaded with one end of described weldless tube 25, and be integrated by being welded to connect, the other end of described weldless tube 25 is placed in the endoporus of described plug 30, and be integrated by being welded to connect, meanwhile described hydraulic fluid port seat 1 is threaded with one end of the second piston rod 26, and is integrated by being welded to connect.
The both sides of described hydraulic fluid port seat 1 inside are respectively equipped with a 5th external hydraulic fluid port 34, the 6th external hydraulic fluid port 31, described 5th external hydraulic fluid port 34 is connected with the first oil duct 33, described first oil duct 33 is connected with the second oil duct 35, described second oil duct 35 aligns without with the inner chamber of slit-tube 25, described 6th external hydraulic fluid port 31 is connected with the 3rd oil duct 32, and described 3rd oil duct 32 is connected with the 4th oil duct 36.
Working method: when extending, first the 5th external hydraulic fluid port 34 is passed through through the first oil duct 33, second oil duct 35, the inner chamber of weldless tube 25, arrive the second rodless cavity 43 of the second cylinder barrel 9, promote the second piston 27 to left movement, thus drive the second piston rod 26 to be moved to the left, meanwhile part oil can enter the second external hydraulic fluid port 21 by the 5th oilhole 144, the first external hydraulic fluid port 2 is entered by the first oil pipe 4, and then the first rodless cavity 41 of the first cylinder barrel 5 is entered by the 6th oilhole 145, promote first piston 11 to move right, thus drive first piston bar 7 to move right, oil in first rod chamber 42 can enter the 3rd external hydraulic fluid port 22 through the first oilhole 14, the oil-collecting hole 23 is all round arrived through the second oil pipe 8, the second rod chamber 44 of the second cylinder barrel 9 is entered through the 3rd oilhole 142, through the 4th oil duct 36, 3rd oil duct 32 arrives the 6th external hydraulic fluid port 31, when first piston 11 touches the first guide sleeve 19, motion stops, when deflated, first entered the second rod chamber 44 of the second cylinder barrel 9 through the 3rd oil duct 32, the 4th oil duct 36 by the 6th external hydraulic fluid port 31, a part enters in the second rod chamber 44 of the second cylinder barrel 9 through the 4th oilhole 143, promote the second piston 27 to move right, thus drive the second piston rod 26 to move right, the oil in the second rodless cavity 43 is flowed out through the inner chamber of weldless tube 25, the second oil duct 35, first oil duct 33, the 5th external hydraulic fluid port 34, another part enters the oil-collecting hole 23 all round through the 3rd oilhole 142, the 3rd external hydraulic fluid port 22 is arrived through the second oil pipe 8, the first rod chamber is entered through the first oilhole 14, promote first piston 11 to left movement, thus drive first piston 11 bar to be moved to the left, oil in first rodless cavity 41 is arrived the second external hydraulic fluid port 21 through external hydraulic fluid port 2, first oil pipe 4 of the first oilhole 145, first, enter the second rodless cavity 43 from the 5th oilhole 144, flow out through weldless tube 25 inner chamber, the second oil duct 35, first oil duct 33, the 5th external hydraulic fluid port 34.First cylinder body and the second cylinder body are connected by connecting bottom board by the utility model, compact structure, the hydraulic fluid port interconnection of the first cylinder body and the second cylinder body, turnover oil duct is reasonable in design, piston rod can realize bi-directional expansion motion in integrated oil cylinders, increase the working stroke of oil cylinder, be suitable for practicality.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (7)
1. an integrated oil cylinders, comprise the first cylinder barrel (9), second cylinder barrel (5), it is characterized in that, one end of described first cylinder barrel (9) is welded and fixed the first cylinder barrel bonnet (61), one end of the relative first cylinder barrel bonnet (61) of described second cylinder barrel (5) is welded and fixed the second cylinder barrel bonnet (6), described first cylinder barrel (9), second cylinder barrel (5) is parallel, be oppositely arranged, described first cylinder barrel (9) is fixed together by some connecting bottom boards (3) with the outer wall of the second cylinder barrel (5), described first cylinder barrel (9) offers the first oilhole (14) and the 6th oilhole (145) respectively near two ends place, described first cylinder barrel (9) outer wall is welded with the three external hydraulic fluid port (22) corresponding with the first oilhole (14) and the 6th oilhole (145) and the first external hydraulic fluid port (2), described second cylinder barrel (5) offers the 3rd oilhole (142) and the 5th oilhole (144) near two ends place, described second cylinder barrel (5) outer wall is welded with the corresponding with the 3rd oilhole (142) and the 5th oilhole (144) oil-collecting hole (23) and the second external hydraulic fluid port (21) all round, described first external hydraulic fluid port (2) connects the second external hydraulic fluid port (21) by the first oil pipe (4), described 3rd external hydraulic fluid port (22) connects the oil-collecting hole (23) all round by the second oil pipe (8),
First piston bar (7) is provided with in described first cylinder barrel (9), first piston (11) is installed in one end of described first piston bar (7), and it is fixing to be undertaken being threaded by the first rear nut (10), the second piston rod (26) is provided with in described second cylinder barrel (5), the second piston (27) is installed in one end of described second piston rod (26), and it is fixing to be undertaken being threaded by the second rear nut (29), one end inner chamber installing the second rear nut (29) described second piston rod (26) is welded and fixed plug (30), weldless tube (25) is provided with in described second piston rod (26), hydraulic fluid port seat (1) is threaded with one end of described weldless tube (25), and be integrated by being welded to connect, the other end of described weldless tube (25) is placed in the endoporus of described plug (30), and be integrated by being welded to connect, meanwhile described hydraulic fluid port seat (1) is threaded with one end of the second piston rod (26), and be integrated by being welded to connect.
2. integrated oil cylinders according to claim 1, is characterized in that, described first piston bar (7) stretches out one end of the first cylinder barrel (9) through the first guide sleeve (19) be provided with in the first cylinder barrel (9).
3. integrated oil cylinders according to claim 1, is characterized in that, described second piston rod (26) stretches out one end of the second cylinder barrel (5) through the second guide sleeve (24) be provided with in the second cylinder barrel (5).
4. integrated oil cylinders according to claim 1, it is characterized in that, described connecting bottom board (3) quantity is four, and described four connecting bottom boards (3) lay respectively at the both sides of the outer wall of described first cylinder barrel (9) and the second cylinder barrel (5) between two for a pair.
5. integrated oil cylinders according to claim 2, it is characterized in that, described first piston (11) is provided with two the first seal grooves (12) in the cooperation place with the first cylinder barrel (9), dynamic seal ring is placed in described first seal groove (12), described first piston bar (7) is provided with two the second seal grooves (13) in the cooperation place with first piston (11), described first guide sleeve (19) is provided with two the 3rd seal grooves (15) in the cooperation place with the first cylinder barrel (9), all seal ring is placed in second seal groove (13) and the 3rd seal groove (15), described first guide sleeve (19) is provided with the first guiding trough of belt (16) from inside to outside successively in the cooperation place with first piston bar (7), 4th seal groove (18), first dust-proof ring recess (20), described first guiding trough of belt (16), 4th seal groove (18), guidance tape is placed respectively in first dust-proof ring recess (20), seal ring, dust ring.
6. integrated oil cylinders according to claim 3, it is characterized in that, described second piston (27) is provided with two the 7th seal grooves (40) in the cooperation place with the second cylinder barrel (5), described second piston (27) is provided with the 3rd guiding trough of belt (17) between two the 7th seal grooves (40), described 7th seal groove (40) and the 3rd guiding trough of belt (17) place dynamic seal ring respectively, guidance tape, described second piston (27) is provided with two the 8th seal grooves (28) in the cooperation place with the second piston rod (26), described second guide sleeve (24) is provided with two the 5th seal grooves (39) in the cooperation place with the second cylinder barrel (5), all seal ring is placed in described 8th seal groove (28) and the 5th seal groove (39), described second guide sleeve (24) is provided with the second dust-proof ring recess (37) from outside to inside successively in the cooperation place with the second piston rod (26), 6th seal groove (38), second guiding trough of belt (161), described second dust-proof ring recess (37), 6th seal groove (38), dust ring is placed respectively in second guiding trough of belt (161), dynamic seal ring, guidance tape.
7. integrated oil cylinders according to claim 1, it is characterized in that, the both sides that described hydraulic fluid port seat (1) is inner are respectively equipped with a 5th external hydraulic fluid port (34), 6th external hydraulic fluid port (31), described 5th external hydraulic fluid port (34) is connected with the first oil duct (33), described first oil duct (33) is connected with the second oil duct (35), described second oil duct (35) is without aliging with the inner chamber of slit-tube (25), described 6th external hydraulic fluid port (31) is connected with the 3rd oil duct (32), described 3rd oil duct (32) is connected with the 4th oil duct (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017325.0U CN204628145U (en) | 2015-01-09 | 2015-01-09 | A kind of integrated oil cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017325.0U CN204628145U (en) | 2015-01-09 | 2015-01-09 | A kind of integrated oil cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628145U true CN204628145U (en) | 2015-09-09 |
Family
ID=54047181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017325.0U Expired - Fee Related CN204628145U (en) | 2015-01-09 | 2015-01-09 | A kind of integrated oil cylinders |
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| Country | Link |
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| CN (1) | CN204628145U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061407A (en) * | 2017-02-14 | 2017-08-18 | 德迈智能装备有限公司 | A kind of dual-head conjoined asynchronous hydraulic cylinder, the hydraulic control method of grass-cutting head |
| CN107298409A (en) * | 2017-06-20 | 2017-10-27 | 安徽合力股份有限公司 | A kind of pallet fork with Telescopic |
-
2015
- 2015-01-09 CN CN201520017325.0U patent/CN204628145U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061407A (en) * | 2017-02-14 | 2017-08-18 | 德迈智能装备有限公司 | A kind of dual-head conjoined asynchronous hydraulic cylinder, the hydraulic control method of grass-cutting head |
| CN107298409A (en) * | 2017-06-20 | 2017-10-27 | 安徽合力股份有限公司 | A kind of pallet fork with Telescopic |
| CN107298409B (en) * | 2017-06-20 | 2023-03-14 | 安徽合力股份有限公司 | Fork with flexible function |
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Legal Events
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| 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: 20150909 Termination date: 20160109 |