CN204324770U - There is revolution hydraulic control system and the hoisting crane of sectional control function - Google Patents
There is revolution hydraulic control system and the hoisting crane of sectional control function Download PDFInfo
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- CN204324770U CN204324770U CN201420721939.2U CN201420721939U CN204324770U CN 204324770 U CN204324770 U CN 204324770U CN 201420721939 U CN201420721939 U CN 201420721939U CN 204324770 U CN204324770 U CN 204324770U
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Abstract
The utility model relates to a kind of revolution hydraulic control system and the hoisting crane with sectional control function, wherein, the revolution hydraulic control system with sectional control function comprises rotary motor, for the trainstop braked rotary motor, for controlling the brake control valve whether trainstop is braked, and rotovalve, rotovalve comprises the first change-over valve and the second change-over valve; In turning course, the oil circuit at the first change-over valve place, for controlling the first hydraulic fluid port oil-feed or the second hydraulic fluid port oil-feed of rotary motor, realizes right-hand rotation or the left-hand rotation of rotary motor; First hydraulic fluid port of rotary motor is communicated with by the second change-over valve with the second hydraulic fluid port; In revolution stopped process, the first change-over valve is closed, and the first hydraulic fluid port of rotary motor is communicated with by the second change-over valve with the second hydraulic fluid port; After revolution stops, the second change-over valve is closed, and the first hydraulic fluid port of rotary motor and the second hydraulic fluid port disconnect.The utility model can ensure that revolution steadily, and automatic capturing after preventing revolution from stopping, improve safe reliability.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of revolution hydraulic control system and the hoisting crane with sectional control function.
Background technology
Rough terrain wheeled crane is the wheel-mounted crane of a kind of Function Extension inheriting the advantage such as car hosit maneuverability and crawler crane lift heavy traveling, there are three kinds of working conditions, be respectively supporting leg working condition, Tire support working condition and lift heavy driving cycle, wherein supporting leg working condition and Tire support working condition can carry out getting on the bus operation.
Along with the exploitation of rough terrain wheeled crane, more and more higher to the requirement of its revolution safe reliability.The rotary system of the medium and small tonnage rough terrain wheeled crane of tradition generally adopts hydraulic control mode, in revolution stopped process, make rotary motor A, B mouth through to realize the steady stopping of revolution, the rear system of stopping is by the complete locking of trainstop, and its feature is that control is stablized, cost is lower.But when traditional revolution hydraulic control system cannot avoid other system works, trainstop is opened, now, if car load occurs uneven, counterweight by automatic rotary centering (because car load supports uneven, outside counterweight oblique pull makes rotary motor turn round, whole getting on the bus is driven to be in center position), affect the safe reliability of car load, particularly when Tire support lift heavy working condition, revolution automatic capturing may overturn, and have a strong impact on vehicle security.
Utility model content
The purpose of this utility model proposes a kind of revolution hydraulic control system and hoisting crane with sectional control function, and it can either ensure to turn round steady stopping, can preventing from again turning round the generation of automatic capturing phenomenon after stopping, effectively improve the safe reliability of car load.
For achieving the above object, the utility model provides a kind of revolution hydraulic control system with sectional control function, it comprises rotary motor, for the trainstop braked described rotary motor, for controlling the brake control valve whether described trainstop is braked, and rotovalve, described rotovalve comprises the first change-over valve and the second change-over valve;
In turning course, the oil circuit at described first change-over valve place, for controlling the first hydraulic fluid port oil-feed or the second hydraulic fluid port oil-feed of described rotary motor, realizes right-hand rotation or the left-hand rotation of described rotary motor; First hydraulic fluid port of described rotary motor is communicated with by described second change-over valve with the second hydraulic fluid port;
In revolution stopped process, described first change-over valve is closed, and the first hydraulic fluid port of described rotary motor is communicated with by described second change-over valve with the second hydraulic fluid port;
After revolution stops, described second change-over valve is closed, and the first hydraulic fluid port of described rotary motor and the second hydraulic fluid port disconnect.
One preferably or in embodiment, described first change-over valve at least comprises meta, the first working position and the second working position, described first change-over valve is when described meta, first hydraulic fluid port and second hydraulic fluid port of described rotary motor all enter without hydraulic oil, described first change-over valve is when described first working position, first hydraulic fluid port oil-feed of described rotary motor, second hydraulic fluid port oil return of described rotary motor, described first change-over valve is when described second working position, second hydraulic fluid port oil-feed of described rotary motor, the first hydraulic fluid port oil return of described rotary motor.
One preferably or in embodiment, described first change-over valve is pilot operated directional control valve, first hydraulic control end of described first change-over valve is communicated with the first pilot control opening of described rotovalve, and the second hydraulic control end of described first change-over valve is communicated with the second pilot control opening of described rotovalve.
One preferably or in embodiment, described second change-over valve at least comprises cut-off position and working position, described second change-over valve is in described cut-off position, first hydraulic fluid port of described rotary motor and the second hydraulic fluid port disconnect, described second change-over valve is in described working position, and the first hydraulic fluid port of described rotary motor is communicated with by described second change-over valve with the second hydraulic fluid port.
One preferably or in embodiment, the oil circuit that the first hydraulic fluid port of described rotary motor and the second hydraulic fluid port are communicated with by described second change-over valve is provided with damping.
One preferably or in embodiment, described second change-over valve is pilot operated directional control valve, the hydraulic control end of described second change-over valve is communicated with the oil outlet of shuttle valve, and two oil inlets of described shuttle valve are corresponding to be respectively communicated with the second pilot control opening with the first pilot control opening of described rotovalve.
One preferably or in embodiment, the hydraulic control response pressure of described second change-over valve is less than the hydraulic control response pressure of described first change-over valve.
For achieving the above object, the utility model provides a kind of hoisting crane, and it comprises the revolution hydraulic control system with sectional control function in above-mentioned any embodiment.
Based on technique scheme, the utility model at least has following beneficial effect:
The utility model is by the Discrete control to the first change-over valve in rotovalve and the second change-over valve opening and closing, achieve the first hydraulic fluid port of rotary motor in turning course and the through of the second hydraulic fluid port, and after revolution stopping, making the second change-over valve cut-off, first hydraulic fluid port of rotary motor and the disconnection of the second hydraulic fluid port, therefore, even if brake control valve energising makes trainstop open, under there is uneven oblique pull counterweight situation in car load, rotary system also can not realize automatic capturing under uncontrolled, ensure that revolution steadily stops, effectively improve the safe reliability of system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
The principle schematic with the revolution hydraulic control system of sectional control function that Fig. 1 provides for the utility model.
Attached number in the figure:
1-rotary motor; 2-trainstop; 3-brake control valve; 4-rotovalve; 5-shuttle valve; 6-first change-over valve; 7-second change-over valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present 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.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
As shown in Figure 1, for the illustrative examples with the revolution hydraulic control system of sectional control function that the utility model provides, in this illustrative examples, the revolution hydraulic control system with sectional control function comprises rotary motor 1, for the trainstop 2 braked rotary motor 1, for controlling the brake control valve 3 whether trainstop 2 is braked rotary motor 1, and the rotovalve 4 of work whether is turned round for controlling rotary motor 1, rotovalve 4 at least comprises the first change-over valve 6 and the second change-over valve 7.
Turn round in working process at rotary motor 1, the oil circuit at the first change-over valve 6 place, for controlling the first hydraulic fluid port A oil-feed or the second hydraulic fluid port B oil-feed of rotary motor 1, realizes right-hand rotation or the left-hand rotation of rotary motor 1; First hydraulic fluid port A of rotary motor 1 is communicated with by the second change-over valve 7 with the second hydraulic fluid port B; Impulsive force in revolution working process can be eliminated by the connection power consumption between the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B, realizes steadily turning round.
Turn round in work stopped process at rotary motor 1, first change-over valve 6 is closed, rotary system continues revolution under effect of inertia, first hydraulic fluid port A of rotary motor 1 is communicated with by the second change-over valve 7 with the second hydraulic fluid port B, the connection power consumption that force of inertia passes through between the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B is eliminated, and realizes steadily stopping.
After rotary motor 1 stops revolution work, the second change-over valve 7 is closed, and the first hydraulic fluid port A and the second hydraulic fluid port B of rotary motor 1 disconnect.Even if brake control valve 3 energising makes trainstop 2 open, under car load exists uneven oblique pull counterweight situation, rotary system also can not realize automatic capturing under uncontrolled, improves the safe reliability of car load.
What provide at the utility model has in the illustrative examples of revolution hydraulic control system of sectional control function, the oil inlet of the first change-over valve 6 is communicated with the oil inlet P of rotovalve 4, the return opening of the first change-over valve 6 is communicated with the oil return inlet T of rotovalve 4, first actuator port of the first change-over valve 6 can be communicated with the first hydraulic fluid port A of rotary motor 1, and the second actuator port of the first change-over valve 6 can be communicated with the second hydraulic fluid port B of rotary motor 1.
What provide at the utility model has in the illustrative examples of revolution hydraulic control system of sectional control function, first change-over valve 6 at least can comprise meta, the first working position and the second working position, first change-over valve 6 is when meta, first hydraulic fluid port A and the second hydraulic fluid port B of rotary motor 1 all enter without hydraulic oil, first change-over valve 6 is when the first working position, first hydraulic fluid port A oil-feed of rotary motor 1, second hydraulic fluid port B oil return of rotary motor 1, first change-over valve 6 is when the second working position, second hydraulic fluid port B oil-feed of rotary motor 1, the first hydraulic fluid port A oil return of rotary motor 1.
What provide at the utility model has in the illustrative examples of revolution hydraulic control system of sectional control function, first change-over valve 6 is pilot operated directional control valve, first hydraulic control end of the first change-over valve 6 can be communicated with the first pilot control opening a of rotovalve 4, and the second hydraulic control end of the first change-over valve 6 can be communicated with the second pilot control opening b of rotovalve 4.The first hydraulic control end or the second hydraulic control end of the first change-over valve 6 is entered by the first pilot control opening a of rotovalve 4 or the pressure oil of the second pilot control opening b, open the first change-over valve 6, make the first change-over valve 6 be in the first working position or the second working position, realize right-hand rotation or the left-hand rotation of rotary motor 1.
What provide at the utility model has in the illustrative examples of revolution hydraulic control system of sectional control function, second change-over valve 7 at least can comprise cut-off position and working position, second change-over valve 7 is in cut-off position, first hydraulic fluid port A and the second hydraulic fluid port B of rotary motor 1 disconnect, second change-over valve 7 is in working position, and the first hydraulic fluid port A of rotary motor 1 is communicated with by the second change-over valve 7 with the second hydraulic fluid port B.
In above-mentioned illustrative examples, the oil circuit that the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B are communicated with by the second change-over valve 7 can be provided with damping.Revolution start-up course in impulsive force can by the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B between be communicated with damping throttling power consumption eliminate, realize smooth starting.Impulsive force in turning course can be eliminated by the damping throttling power consumption be communicated with between the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B, realizes steadily turning round.Revolution stopped process in force of inertia can by the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B between be communicated with damping throttling power consumption eliminate, realize steadily stop.
What provide at the utility model has in the illustrative examples of revolution hydraulic control system of sectional control function, second change-over valve 7 can be electric control reversing valve or pilot operated directional control valve, when the second change-over valve 7 is pilot operated directional control valve, the hydraulic control end of the second change-over valve 7 is communicated with the oil outlet of shuttle valve 5, and two oil inlets of shuttle valve 5 are corresponding to be respectively communicated with the second pilot control opening b with the first pilot control opening a of rotovalve 4.A wherein oil inlet of shuttle valve 5 is entered by the first pilot control opening a of rotovalve 4 or the pressure oil of the second pilot control opening b, open the second change-over valve 7, make the second change-over valve 7 be in working position, realize the first hydraulic fluid port A of rotary motor 1 and being communicated with of the second hydraulic fluid port B.
In above-mentioned illustrative examples, the hydraulic control response pressure of the second change-over valve 7 is less than the hydraulic control response pressure of the first change-over valve 6.In revolution start-up course, first pilot control opening a of rotovalve 4 or the pressure of the second pilot control opening b increase gradually, first the second change-over valve 7 is opened by shuttle valve 5, realize the first hydraulic fluid port A of rotary motor 1 and the through of the second hydraulic fluid port B, open the first change-over valve 6 again, realize the first hydraulic fluid port A or the second hydraulic fluid port B oil-feed of rotary motor 1, drive rotary motor 1 turn right or turn left.
Enumerate the specific embodiment with the revolution hydraulic control system of sectional control function that the utility model provides below, in this specific embodiment, first change-over valve 6 and the second change-over valve 7 are pilot operated directional control valve, the hydraulic control response pressure of the second change-over valve 7 is less than the hydraulic control response pressure of the first change-over valve 6, the control oil sources of the first change-over valve 6 and the commutation of the second change-over valve 7 is all taken at the first pilot control opening a and the second pilot control opening b of rotovalve 4, by to the control of the second change-over valve 7 relative to the first change-over valve 6 opening and closing sequential, realize the first hydraulic fluid port A of rotary motor 1 in turning course and the through of the second hydraulic fluid port B, revolution makes the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B end after stopping, ensure that revolution steadily stops, uncontrolled automatic capturing after preventing revolution from stopping, effectively improve the safe reliability of system, the detailed operation of this specific embodiment is as follows:
In revolution start-up course, handle revolution hydraulic control handle, first pilot control opening a of rotovalve 4 or the pressure of the second pilot control opening b increase gradually, first the second change-over valve 7 is opened by shuttle valve 5, realize the first hydraulic fluid port A of rotary motor 1 and the through of the second hydraulic fluid port B, open the first change-over valve 6 again, realize the first hydraulic fluid port A or the second hydraulic fluid port B oil-feed of rotary motor 1, rotary motor 1 is driven to turn right or turn left, impulsive force in start-up course can be eliminated by the damping throttling power consumption be communicated with between rotary motor 1 first hydraulic fluid port A and the second hydraulic fluid port B, realizes smooth starting;
In turning course, second change-over valve 7 is in commutation states (working position) always, realize the first hydraulic fluid port A of rotary motor 1 and the through of the second hydraulic fluid port B, impulsive force in turning course can be eliminated by the damping throttling power consumption be communicated with between the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B, realizes steadily turning round;
In revolution stopped process, handle revolution hydraulic control handle, first pilot control opening a of rotovalve 4 or the pressure of the second pilot control opening b reduce gradually, first the first change-over valve 6 is made to close, and the second change-over valve 7 is not closed, make the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B still be in connected state, rotary system continues revolution under effect of inertia, force of inertia is eliminated by the damping throttling power consumption be communicated with between the first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B, realizes steadily stopping;
After revolution stops, second change-over valve 7 ends, first hydraulic fluid port A of rotary motor 1 and the second hydraulic fluid port B is disconnected, now, even if brake control valve 3 energising makes trainstop 2 open, under car load exists uneven oblique pull counterweight situation, rotary system also can not realize automatic capturing under uncontrolled, avoid occurring rollover phenomenon, improve the safe reliability of car load.
By the description of each embodiment above-mentioned, the utility model can be derived and at least have the following advantages:
1) controller performance is high: pilot control pressure achieves the opening and closing time schedule control of the first change-over valve 6 and the second change-over valve 7, ensure that revolution stationarity, prevents rotary system automatic rotary centering.
2) improve the safe reliability of car load: the second change-over valve 7 is remain off state after revolution stops, even if brake control valve 3 energising makes trainstop 2 open, under car load exists uneven oblique pull counterweight situation, rotary system also can not automatic capturing, improves the safe reliability of car load.
The revolution hydraulic control system of what the utility model provided have sectional control function can be applied on hoisting crane.
In the illustrative examples of the hoisting crane provided at the utility model, hoisting crane comprises the revolution hydraulic control system with sectional control function in above-mentioned any embodiment.
The hoisting crane that the utility model provides possesses the beneficial effect with the revolution hydraulic control system of sectional control function that the utility model provides accordingly.
The revolution hydraulic control system of what the utility model provided have sectional control function comprises the first change-over valve 6 and the second change-over valve 7, first change-over valve 6 and the second change-over valve 7 are pilot operated directional control valve, it controls oil sources and is taken at rotovalve 4 pilot control opening, by to the control of the second change-over valve 7 relative to the first change-over valve 6 opening and closing sequential, realize the first hydraulic fluid port A of rotary motor 1 in turning course and being communicated with of the second hydraulic fluid port B, revolution makes the second change-over valve 7 end after stopping, first hydraulic fluid port A and the second hydraulic fluid port B of rotary motor 1 disconnect, ensure that revolution steadily stops, uncontrolled automatic capturing after preventing revolution from stopping, effectively improve the safe reliability of system.
In description of the present utility model; it will be appreciated that; the word such as " first ", " second " is used to limit parts; be only used to be convenient to distinguish above-mentioned parts; as there is no Stated otherwise; above-mentioned word does not have particular meaning, therefore can not be interpreted as the restriction to the utility model protection domain.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (8)
1. one kind has the revolution hydraulic control system of sectional control function, comprise rotary motor (1), for the trainstop (2) braked described rotary motor (1), for controlling the brake control valve (3) whether described trainstop (2) is braked, and rotovalve (4), it is characterized in that: described rotovalve (4) comprises the first change-over valve (6) and the second change-over valve (7);
In turning course, the oil circuit at described first change-over valve (6) place, for controlling the first hydraulic fluid port oil-feed or the second hydraulic fluid port oil-feed of described rotary motor (1), realizes right-hand rotation or the left-hand rotation of described rotary motor (1); First hydraulic fluid port of described rotary motor (1) is communicated with by described second change-over valve (7) with the second hydraulic fluid port;
In revolution stopped process, described first change-over valve (6) is closed, and the first hydraulic fluid port of described rotary motor (1) is communicated with by described second change-over valve (7) with the second hydraulic fluid port;
After revolution stops, described second change-over valve (7) is closed, and the first hydraulic fluid port of described rotary motor (1) and the second hydraulic fluid port disconnect.
2. there is the revolution hydraulic control system of sectional control function as claimed in claim 1, it is characterized in that: described first change-over valve (6) at least comprises meta, first working position and the second working position, described first change-over valve (6) is when described meta, first hydraulic fluid port and second hydraulic fluid port of described rotary motor (1) all enter without hydraulic oil, described first change-over valve (6) is when described first working position, first hydraulic fluid port oil-feed of described rotary motor (1), second hydraulic fluid port oil return of described rotary motor (1), described first change-over valve (6) is when described second working position, second hydraulic fluid port oil-feed of described rotary motor (1), first hydraulic fluid port oil return of described rotary motor (1).
3. there is the revolution hydraulic control system of sectional control function as claimed in claim 2, it is characterized in that: described first change-over valve (6) is pilot operated directional control valve, first hydraulic control end of described first change-over valve (6) is communicated with the first pilot control opening of described rotovalve (4), and the second hydraulic control end of described first change-over valve (6) is communicated with the second pilot control opening of described rotovalve (4).
4. the revolution hydraulic control system with sectional control function as described in any one of claim 1-3, it is characterized in that: described second change-over valve (7) at least comprises cut-off position and working position, described second change-over valve (7) is in described cut-off position, first hydraulic fluid port of described rotary motor (1) and the second hydraulic fluid port disconnect, described second change-over valve (7) is in described working position, and the first hydraulic fluid port of described rotary motor (1) is communicated with by described second change-over valve (7) with the second hydraulic fluid port.
5. there is the revolution hydraulic control system of sectional control function as claimed in claim 4, it is characterized in that: the oil circuit that the first hydraulic fluid port of described rotary motor (1) and the second hydraulic fluid port are communicated with by described second change-over valve (7) is provided with damping.
6. there is the revolution hydraulic control system of sectional control function as claimed in claim 5, it is characterized in that: described second change-over valve (7) is pilot operated directional control valve, the hydraulic control end of described second change-over valve (7) is communicated with the oil outlet of shuttle valve (5), and two oil inlets of described shuttle valve (5) are corresponding to be respectively communicated with the second pilot control opening with the first pilot control opening of described rotovalve (4).
7. there is the revolution hydraulic control system of sectional control function as claimed in claim 6, it is characterized in that: the hydraulic control response pressure of described second change-over valve (7) is less than the hydraulic control response pressure of described first change-over valve (6).
8. a hoisting crane, is characterized in that: comprise the revolution hydraulic control system with sectional control function as described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721939.2U CN204324770U (en) | 2014-11-26 | 2014-11-26 | There is revolution hydraulic control system and the hoisting crane of sectional control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721939.2U CN204324770U (en) | 2014-11-26 | 2014-11-26 | There is revolution hydraulic control system and the hoisting crane of sectional control function |
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| Publication Number | Publication Date |
|---|---|
| CN204324770U true CN204324770U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420721939.2U Expired - Fee Related CN204324770U (en) | 2014-11-26 | 2014-11-26 | There is revolution hydraulic control system and the hoisting crane of sectional control function |
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| CN (1) | CN204324770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
| CN105439018A (en) * | 2014-11-26 | 2016-03-30 | 徐州重型机械有限公司 | Rotary hydraulic control system with segmented control function and crane |
-
2014
- 2014-11-26 CN CN201420721939.2U patent/CN204324770U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439018A (en) * | 2014-11-26 | 2016-03-30 | 徐州重型机械有限公司 | Rotary hydraulic control system with segmented control function and crane |
| CN105439018B (en) * | 2014-11-26 | 2018-02-16 | 徐州重型机械有限公司 | Revolution hydraulic control system and crane with sectional control function |
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20181126 |