CN210949325U - Integrated servo pump station hydraulic system of electro-hydraulic servo universal testing machine - Google Patents
Integrated servo pump station hydraulic system of electro-hydraulic servo universal testing machine Download PDFInfo
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- CN210949325U CN210949325U CN201922193827.XU CN201922193827U CN210949325U CN 210949325 U CN210949325 U CN 210949325U CN 201922193827 U CN201922193827 U CN 201922193827U CN 210949325 U CN210949325 U CN 210949325U
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Abstract
The utility model relates to a hydraulic system technical field, especially relate to integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, when using the integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, filter the oil return through the oil strain tank, impurity mixed in the filtering hydraulic oil, make the hydraulic oil in the oil tank keep pure, ensure the normal operating of system, observe everywhere pressure in the system simultaneously through first manometer, second manometer, main pressure gauge and centre gripping manometer, and adjust pressure through first regulating valve and second regulating valve, compact overall structure, be convenient for observe the adjustment to pressure; the hydraulic oil recovery device comprises an oil tank, a first hydraulic pump, a first hydraulic valve, a main hydraulic cylinder, a first oil return valve, a second hydraulic pump, a second hydraulic valve, a clamping hydraulic cylinder, a second oil return valve, an oil filter tank, a first adjusting valve, a second adjusting valve, a first pressure gauge, a main pressure gauge, a second pressure gauge and a clamping pressure gauge.
Description
Technical Field
The utility model relates to a hydraulic system technical field especially relates to servo pump station hydraulic system of integration of servo universal tester of electricity liquid.
Background
As is well known, an integrated servo pump station hydraulic system of an electro-hydraulic servo universal testing machine is an auxiliary device which is used for providing kinetic energy for the testing machine in the using process of the electro-hydraulic servo universal testing machine so that the testing machine can be better used, and the integrated servo pump station hydraulic system is widely used in the technical field of hydraulic systems; the hydraulic oil in the integrated servo pump station hydraulic system of the existing electro-hydraulic servo universal testing machine can be mixed with impurities after being used for a long time to influence the normal operation of the hydraulic system, and meanwhile, the existing hydraulic system is not convenient for detecting the pressure in each part inside the system.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an in effectively preventing impurity sneaking into hydraulic system, guarantee system normal operating to can carry out real-time detection's servo pump station hydraulic system of integration of the servo universal tester of electricity liquid to each pressure.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, which comprises an oil tank, a first hydraulic pump, a first hydraulic valve, a main hydraulic cylinder, a first oil return valve, a second hydraulic pump, a second hydraulic valve, a clamping hydraulic cylinder, a second oil return valve, an oil filter box, a first regulating valve, a second regulating valve, a first pressure gauge, a main pressure gauge, a second pressure gauge and a clamping pressure gauge, wherein the oil outlet end of the oil tank is provided with a first oil outlet pipe and a second oil outlet pipe, the oil outlet ends of the first oil outlet pipe and the second oil outlet pipe are respectively fixedly connected with the oil inlet ends of the first hydraulic pump and the second hydraulic pump, the oil outlet ends of the first hydraulic pump and the second hydraulic pump are respectively provided with a first connecting pipe and a second connecting pipe, the oil outlet ends of the first connecting pipe and the second connecting pipe are respectively fixedly connected with the oil inlet ends of the main hydraulic cylinder and the clamping hydraulic cylinder, the oil outlet ends of the main hydraulic cylinder, the first hydraulic valve is fixedly arranged in the middle of the first connecting pipe, the second hydraulic valve is fixedly arranged in the middle of the second connecting pipe, the first oil return valve is fixedly arranged in the middle of the first oil return pipe, the second oil return valve is fixedly arranged in the middle of the second oil return pipe, the oil outlet ends of the first oil return pipe and the second oil return pipe are fixedly connected with the oil inlet end of the oil filter box, the oil outlet end of the oil filter box is fixedly connected with the oil inlet end of the oil tank, the first adjusting valve and the second adjusting valve are respectively and fixedly arranged in the middle of the first connecting pipe and the second connecting pipe, the first pressure gauge and the second pressure gauge are respectively arranged at the oil outlet ends of the first hydraulic pump and the second hydraulic pump, and the book number master pressure gauge and the clamping pressure gauge are respectively arranged.
The utility model discloses a servo pump station hydraulic system of integration of servo universal tester of electricity liquid still includes temperature sensor, and temperature sensor sets up in the outside of oil tank, and temperature sensor's measuring terminal inserts in the oil tank.
The utility model discloses an integration servo pump station hydraulic system of servo universal tester of electricity liquid, the oil strain tank includes a filter screen section of thick bamboo, including a motor, an end cap, a controller, and a cover plate, the pivot, the connecting rod, montant and cleaning brush, the inside inner chamber that is provided with of oil strain tank, the filter screen section of thick bamboo is fixed to be set up in the top of inner chamber, the motor is fixed to be set up in the top of oil strain tank, the pivot is fixed to be set up in the bottom of motor, the inside of a filter screen section of thick bamboo is inserted at the bottom of pivot from the top of filter screen section of thick bamboo, the connecting rod is fixed to be set up in the middle part of.
The utility model discloses an integration servo pump station hydraulic system of servo universal tester of electricity liquid still includes horizontal pole, scraper blade, arranges miscellaneous mouthful and arranges miscellaneous pipe, and the horizontal pole is fixed to be set up in the bottom of pivot, and the scraper blade is fixed to be set up in the bottom of horizontal pole, and the bottom of scraper blade and the inside bottom contact of filter screen section of thick bamboo arrange miscellaneous mouthful and set up in the bottom right side of filter screen section of thick bamboo, arrange miscellaneous top and row miscellaneous mouthful fixed connection of pipe, arrange the bottom of miscellaneous pipe and outwards wear out the oil strain tank from the inner chamber.
The utility model discloses a servo pump station hydraulic system of integration of servo universal tester of electricity liquid still includes the trash valve of row, arranges the trash valve fixed the setting in the middle part of arranging the miscellaneous pipe.
The utility model discloses a servo pump station hydraulic system of integration of servo universal tester of electricity liquid still includes heater and cooler, and the heater is fixed to be set up in the oil tank, and the cooler is fixed to be set up in the oil tank.
The utility model discloses a servo pump station hydraulic system of integration of servo universal tester of electricity liquid still includes level sensor, and level sensor is fixed to be set up inside the oil tank.
The utility model discloses a servo universal tester's of electricity liquid integration servo pump station hydraulic system still includes first filter screen and second filter screen, and inside first filter screen set up in the oil feed end of first oil pipe and lie in the oil tank, the second filter screen set up in the second oil pipe the oil feed end and lie in the oil tank.
Compared with the prior art, the beneficial effects of the utility model are that: when using servo pump station hydraulic system of integration of servo universal tester of electricity liquid, filter the oil return through the oil strain tank, the impurity of mixing in the filtering hydraulic oil, make the hydraulic oil in the oil tank keep pure, ensure system normal operating, observe pressure everywhere in the system simultaneously through first manometer, the second manometer, main manometer and centre gripping manometer to adjust pressure through first adjusting valve and second adjusting valve, overall structure is compact, be convenient for observe the adjustment to pressure.
Drawings
Fig. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the internal structure of the oil filter tank of the present invention;
FIG. 3 is a schematic view of the internal structure of the fuel tank of the present invention;
in the drawings, the reference numbers: 1. an oil tank; 2. a first hydraulic pump; 3. a first hydraulic valve; 4. a master cylinder; 5. a first oil return valve; 6. a second hydraulic pump; 7. a second hydraulic valve; 8. a clamping hydraulic cylinder; 9. a second oil return valve; 10. an oil filter box; 11. a first regulating valve; 12. a second regulating valve; 13. a first pressure gauge; 14. a main pressure gauge; 15. a second pressure gauge; 16. clamping a pressure gauge; 17. a temperature sensor; 18. a filter screen cylinder; 19. a motor; 20. a rotating shaft; 21. a connecting rod; 22. a vertical rod; 23. cleaning a brush; 24. a cross bar; 25. a squeegee; 26. a trash discharge port; 27. a trash removal pipe; 28. a trash valve; 29. a heater; 30. a cooler; 31. a liquid level sensor; 32. a first filter screen; 33. and a second filter screen.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in FIGS. 1 to 3, the integrated servo pump station hydraulic system of the electro-hydraulic servo universal tester of the present invention comprises an oil tank 1, a first hydraulic pump 2, a first hydraulic valve 3, a main hydraulic cylinder 4, a first oil return valve 5, a second hydraulic pump 6, a second hydraulic valve 7, a clamping hydraulic cylinder 8, a second oil return valve 9, an oil filter tank 10, a first regulating valve 11, a second regulating valve 12, a first pressure gauge 13, a main pressure gauge 14, a second pressure gauge 15 and a clamping pressure gauge 16, wherein the oil outlet end of the oil tank 1 is provided with a first oil outlet pipe and a second oil outlet pipe, the oil outlet ends of the first oil outlet pipe and the second oil outlet pipe are respectively fixedly connected with the oil inlet ends of the first hydraulic pump 2 and the second hydraulic pump 6, the oil outlet ends of the first hydraulic pump 2 and the second hydraulic pump 6 are respectively provided with a first connecting pipe and a second connecting pipe, the oil outlet ends of the first connecting pipe and the second connecting pipe are respectively fixedly connected with the oil inlet ends of the main, the oil outlet ends of a main hydraulic cylinder 4 and a clamping hydraulic cylinder 8 are respectively arranged in a first oil return pipe and a second oil return pipe, a first hydraulic valve 3 is fixedly arranged in the middle of a first connecting pipe, a second hydraulic valve 7 is fixedly arranged in the middle of a second connecting pipe, a first oil return valve 5 is fixedly arranged in the middle of the first oil return pipe, a second oil return valve 9 is fixedly arranged in the middle of the second oil return pipe, the oil outlet ends of the first oil return pipe and the second oil return pipe are both fixedly connected with the oil inlet end of an oil filter box 10, the oil outlet end of the oil filter box 10 is fixedly connected with the oil inlet end of an oil tank 1, a first regulating valve 11 and a second regulating valve 12 are respectively fixedly arranged in the middle connecting pipes of the first connecting pipe and the second connecting pipe, a first pressure gauge 13 and a second pressure gauge 15 are respectively arranged at the oil outlet ends of a first hydraulic pump 2 and a second hydraulic pump 6, and a cable book number main pressure; when using servo pump station hydraulic system of integration of servo universal tester of electricity liquid, filter the oil return through the oil strain tank, the impurity of mixing in the filtering hydraulic oil, make the hydraulic oil in the oil tank keep pure, ensure system normal operating, observe pressure everywhere in the system simultaneously through first manometer, the second manometer, main manometer and centre gripping manometer to adjust pressure through first adjusting valve and second adjusting valve, overall structure is compact, be convenient for observe the adjustment to pressure.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, still include temperature sensor 17, temperature sensor 17 sets up in the outside of oil tank 1, and the measuring end of temperature sensor 17 inserts in oil tank 1; the temperature of the oil in the oil tank is monitored by a temperature sensor.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, the oil strain tank 10 includes filter screen cylinder 18, motor 19, pivot 20, connecting rod 21, montant 22 and cleaning brush 23, the inside inner chamber that is provided with of oil strain tank 10, filter screen cylinder 18 is fixed to be set up in the top of inner chamber, motor 19 is fixed to be set up in the top of oil strain tank 10, pivot 20 is fixed to be set up in motor 19's bottom, the bottom of pivot 20 inserts filter screen cylinder 18's inside from the top of oil strain tank 10, connecting rod 21 is fixed to be set up in the middle part of pivot 20, montant 22 is fixed to be set up in the outer end of connecting rod 21, cleaning brush 23 is fixed to be set up in montant 22's outer end, the outer end of; the cleaning brush is driven to rotate through the transmission of the motor, so that the filter screen cylinder is prevented from being blocked.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, still include horizontal pole 24, scraper blade 25, arrange miscellaneous mouthful 26 and arrange miscellaneous pipe 27, horizontal pole 24 is fixed to be set up in the bottom of pivot 20, scraper blade 25 is fixed to be set up in the bottom of horizontal pole 24, the bottom of scraper blade 25 contacts with the inside bottom of filter screen cylinder 18, arrange miscellaneous mouthful 26 and set up in the right side of the bottom of filter screen cylinder 18, arrange the top of miscellaneous pipe 27 and arrange miscellaneous mouthful 26 fixed connection, arrange the bottom of miscellaneous pipe 27 and outwards wear out oil strain tank 10 from the inner chamber; the impurities are scraped to the impurity discharging pipe through the scraping plate and discharged.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, still include trash valve 28, trash valve 28 is fixed to be set up in the middle part of trash pipe 27; and controlling impurity removal through an impurity removal valve.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, still include heater 29 and cooler 30, heater 29 is fixed to be set up in oil tank 1, cooler 30 is fixed to be set up in oil tank 1; the oil temperature in the oil tank is controlled by the heater and the cooler matched with the temperature sensor.
The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine further comprises a liquid level sensor 31, and the liquid level sensor 31 is fixedly arranged inside the oil tank 1; the oil level in the oil tank is detected by a liquid level sensor.
The utility model discloses an integrated servo pump station hydraulic system of electro-hydraulic servo universal tester, still include first filter screen 32 and second filter screen 33, first filter screen 32 sets up in the oil inlet end of first oil pipe and lies in oil tank 1 inside, second filter screen 33 sets up in the oil inlet end of second oil pipe and lies in oil tank 1 inside; the impurities are prevented from entering the first hydraulic pump and the second hydraulic pump by the first filter screen and the second filter screen.
The utility model discloses an integration servo pump station hydraulic system of electro-hydraulic servo universal tester, when using the integration servo pump station hydraulic system of electro-hydraulic servo universal tester, filter the oil return through the oil strain tank, the impurity mixed in the filtering hydraulic oil, make the hydraulic oil in the oil tank keep pure, ensure the normal operating of system, simultaneously observe each pressure in the system through first manometer, the second manometer, the main pressure table and centre gripping manometer, and adjust the pressure through first regulating valve and second regulating valve, compact overall structure, be convenient for observe the adjustment to the pressure, drive the rotation of clearance brush through motor drive, prevent the filter screen section of thick bamboo jam, monitor the oil temperature in the oil tank through temperature sensor, scrape impurity to the pipe of excluding impurity through the scraper blade and discharge, control the trash removal through the valve, control the oil temperature in the oil tank through heater and cooler cooperation temperature sensor, the oil level in the oil tank is detected through the liquid level sensor, impurities are prevented from entering the first hydraulic pump and the second hydraulic pump through the first filter screen and the second filter screen, and before the actions are completed, the oil level sensor firstly moves to a position required by a user.
The utility model discloses a servo pump station hydraulic system of integration of servo universal tester of electricity liquid, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to concrete structure, model and the coefficient index of all its parts are its from taking the technique, as long as can reach all can implement of its beneficial effect, so do not add at many and give unnecessary details.
The integrated servo pump station hydraulic system of the electro-hydraulic servo universal tester of the present invention, unless otherwise stated, the terms "upper, lower, left, right, front, back, inner, outer, vertical and horizontal" and the like included in the terms only represent the orientation of the term in the normal use state, or are colloquially understood by those skilled in the art, and should not be considered as limiting the term, meanwhile, the terms "first", "second" and "third" do not represent the specific quantity and sequence, but are used only for name differentiation, and the terms "include", "include" or any other variants thereof are intended to cover the non-exclusive inclusion, so that the process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes other elements for such process, A method, article, or apparatus that is inherent to the element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine is characterized by comprising an oil tank (1), a first hydraulic pump (2), a first hydraulic valve (3), a main hydraulic cylinder (4), a first oil return valve (5), a second hydraulic pump (6), a second hydraulic valve (7), a clamping hydraulic cylinder (8), a second oil return valve (9), an oil filter tank (10), a first adjusting valve (11), a second adjusting valve (12), a first pressure gauge (13), a main pressure gauge (14), a second pressure gauge (15) and a clamping pressure gauge (16), wherein the oil outlet end of the oil tank (1) is provided with a first oil outlet pipe and a second oil outlet pipe, the oil outlet ends of the first oil outlet pipe and the second oil outlet pipe are fixedly connected with the oil inlet ends of the first hydraulic pump (2) and the second hydraulic pump (6) respectively, the oil outlet ends of the first hydraulic pump (2) and the second hydraulic pump (6) are provided with a first connecting pipe and a second connecting pipe respectively, the oil outlet ends of the first connecting pipe and the second connecting pipe are fixedly connected with the oil inlet ends of a main hydraulic cylinder (4) and a clamping hydraulic cylinder (8) respectively, the oil outlet ends of the main hydraulic cylinder (4) and the clamping hydraulic cylinder (8) are arranged on a first oil return pipe and a second oil return pipe respectively, a first hydraulic valve (3) is fixedly arranged in the middle of the first connecting pipe, a second hydraulic valve (7) is fixedly arranged in the middle of the second connecting pipe, a first oil return valve (5) is fixedly arranged in the middle of the first oil return pipe, a second oil return valve (9) is fixedly arranged in the middle of the second oil return pipe, the oil outlet ends of the first oil return pipe and the second oil return pipe are fixedly connected with the oil inlet end of an oil filter box (10), the oil outlet end of the oil filter box (10) is fixedly connected with the oil inlet end of an oil tank (1), a first regulating valve (11) and a second regulating valve (12) are fixedly arranged in the middle of the first connecting pipe and the second, first manometer (13) and second manometer (15) set up respectively in the end of producing oil of first hydraulic pump (2) and second hydraulic pump (6), and ask for book number main pressure table (14) and centre gripping manometer (16) set up respectively in main hydraulic cylinder (4) and centre gripping pneumatic cylinder (8).
2. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 1, further comprising a temperature sensor (17), wherein the temperature sensor (17) is arranged outside the oil tank (1), and a measuring end of the temperature sensor (17) is inserted into the oil tank (1).
3. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 2, wherein the oil filter box (10) comprises a filter screen cylinder (18), a motor (19), a rotating shaft (20), a connecting rod (21), a vertical rod (22) and a cleaning brush (23), an inner cavity is arranged inside the oil filter box (10), the filter screen cylinder (18) is fixedly arranged at the top of the inner cavity, the motor (19) is fixedly arranged at the top of the oil filter box (10), the rotating shaft (20) is fixedly arranged at the bottom end of the motor (19), the bottom end of the rotating shaft (20) is inserted into the filter screen cylinder (18) from the top of the oil filter box (10), the connecting rod (21) is fixedly arranged at the middle part of the rotating shaft (20), the vertical rod (22) is fixedly arranged at the outer end of the connecting rod (21), and the cleaning brush (23) is fixedly arranged at the outer end of the vertical rod (22), the outer end of the cleaning brush (23) is contacted with the inner end of the filter screen cylinder (18).
4. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 3, further comprising a cross rod (24), a scraper (25), a trash discharge port (26) and a trash discharge pipe (27), wherein the cross rod (24) is fixedly arranged at the bottom of the rotating shaft (20), the scraper (25) is fixedly arranged at the bottom of the cross rod (24), the bottom end of the scraper (25) is in contact with the bottom end of the inside of the filter screen cylinder (18), the trash discharge port (26) is arranged on the right side of the bottom of the filter screen cylinder (18), the top of the trash discharge pipe (27) is fixedly connected with the trash discharge port (26), and the bottom of the trash discharge pipe (27) penetrates out of the oil filter box (10) from the inner cavity.
5. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 4, further comprising an impurity discharging valve (28), wherein the impurity discharging valve (28) is fixedly arranged in the middle of the impurity discharging pipe (27).
6. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 5, further comprising a heater (29) and a cooler (30), wherein the heater (29) is fixedly arranged in the oil tank (1), and the cooler (30) is fixedly arranged in the oil tank (1).
7. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 6, further comprising a liquid level sensor (31), wherein the liquid level sensor (31) is fixedly arranged inside the oil tank (1).
8. The integrated servo pump station hydraulic system of the electro-hydraulic servo universal testing machine according to claim 7, further comprising a first filter screen (32) and a second filter screen (33), wherein the first filter screen (32) is arranged at the oil inlet end of the first oil outlet pipe and is located inside the oil tank (1), and the second filter screen (33) is arranged at the oil inlet end of the second oil outlet pipe and is located inside the oil tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193827.XU CN210949325U (en) | 2019-12-09 | 2019-12-09 | Integrated servo pump station hydraulic system of electro-hydraulic servo universal testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193827.XU CN210949325U (en) | 2019-12-09 | 2019-12-09 | Integrated servo pump station hydraulic system of electro-hydraulic servo universal testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949325U true CN210949325U (en) | 2020-07-07 |
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ID=71380685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922193827.XU Expired - Fee Related CN210949325U (en) | 2019-12-09 | 2019-12-09 | Integrated servo pump station hydraulic system of electro-hydraulic servo universal testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033772A (en) * | 2021-11-16 | 2022-02-11 | 杨坤 | Free piston hydraulic pump |
| CN118462683A (en) * | 2024-07-12 | 2024-08-09 | 江苏铠丰液压气动有限公司 | Combined piston oil cylinder suitable for extrusion type solid-liquid separator |
-
2019
- 2019-12-09 CN CN201922193827.XU patent/CN210949325U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033772A (en) * | 2021-11-16 | 2022-02-11 | 杨坤 | Free piston hydraulic pump |
| CN114033772B (en) * | 2021-11-16 | 2024-06-04 | 濮阳市宝利通石油机械有限公司 | Free piston hydraulic pump |
| CN118462683A (en) * | 2024-07-12 | 2024-08-09 | 江苏铠丰液压气动有限公司 | Combined piston oil cylinder suitable for extrusion type solid-liquid separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20211209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |