CN202323659U - Leveling sensing device and leveling control system - Google Patents
Leveling sensing device and leveling control system Download PDFInfo
- Publication number
- CN202323659U CN202323659U CN2011204710980U CN201120471098U CN202323659U CN 202323659 U CN202323659 U CN 202323659U CN 2011204710980 U CN2011204710980 U CN 2011204710980U CN 201120471098 U CN201120471098 U CN 201120471098U CN 202323659 U CN202323659 U CN 202323659U
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- China
- Prior art keywords
- levelling
- signal
- sensing device
- main shaft
- sensor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model discloses a leveling sensing device, which comprises a signal acquisition device, a signal processor and an external interface, wherein the signal acquisition device comprises a sensor and transmits a signal which is acquired to the signal processor; the signal processor processes the signal and transmits the signal through the external interface; the sensor comprises a stator and a rotor, which are coaxial; by relative rotation of the stator and the rotor, the sensor acquires the signal; the signal acquisition device transmits ground information which is acquired to the signal processor; the signal processor computes the specific condition of the ground and transmits the specific condition to an external controller; and the controller levels the ground. The sensor acquires the signal, transmission of a belt structure or other devices is not required, and the leveling sensing device is high in accuracy and reliability. The utility model also discloses a leveling control system which comprises the leveling sensing device.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of levelling control device.In addition, the utility model also relates to a kind of levelling control system that comprises above-mentioned levelling sensing device.
Background technology
Existing automatic construction machinery, automatic paving machine for example, need pave forms the plane, need have levelling control system.
Said levelling control system comprises levelling sensing device, controller and levelling oil cylinder.Said levelling control system detects the flat condition on ground through said levelling sensing device, and detected ground signal is passed to said controller, and said controller is controlled said levelling oil cylinder, the final levelling that realizes construction ground.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is a kind of sectional view of typical levelling sensing device, and Fig. 2 is the axonometric drawing of levelling sensing device shown in Figure 1.
Said levelling sensing device connects piston shoes and main shaft 2 through suspension arrangement 1 lifting by swing arm.Whether said piston shoes can to respond to said ground smooth if having the plane that contacts with ground, said swing arm one end and said piston shoes are hinged, and the other end is fixedly connected with said main shaft 2.
Moving direction along with said levelling sensing device; If said ground is uneven; Said piston shoes will drive said main shaft 2 through said swing arm and rotate; And obtain the rotational angle of said main shaft 2 by sensor 7, and can obtain the irregular concrete condition in said ground through calculating, realize the levelling on said ground again through said controller.
Common said swing arm and said piston shoes are hinged, and by said swing arm of counterweigh and said piston shoes.In the traveling process of said levelling sensing device, said swing arm will be rotated with landing ground is rough and uneven in surface.The angle that the length of the angle of said swing arm and said bottom surface, said swing arm, said main shaft 2 rotated when said ground was smooth and the data such as height of said main shaft 2 can draw the height situation on said ground.
A kind of typical levelling sensing device is connected sensor 7 and said main shaft 2 through belt 9 with belt pulley 8; The rotation of said main shaft 2 drives said sensor 7 through said belt 9 and said belt pulley and rotates, and makes said sensor 7 obtain the rotational angle of said main shaft 2.
Adopt belt composition to connect said main shaft 2 and said sensor 7, there is error in the transmission of said main shaft 2 anglecs of rotation, has reduced the accuracy of detection of said sensor 7.Said belt 9 easy ageing, in the work of said levelling sensing device, said main shaft 2 is frequent movement in a rotating range usually, so more can aggravate the aging of said belt 9.
Therefore, how to solve said levelling sensing device precision low with problems such as reliability is low, be that those skilled in the art are badly in need of the technical problem that solves at present.
The utility model content
The purpose of the utility model provides a kind of levelling sensing device, and this levelling sensing device has high accuracy and high reliability simultaneously.Another purpose of the utility model provides a kind of levelling control system that comprises above-mentioned levelling sensing device.
In order to solve the problems of the technologies described above, the utility model provides a kind of levelling sensing device, comprises signal pickup assembly, signal processor and external interface; Said signal processor links to each other with said external interface with said signal pickup assembly respectively; Said signal pickup assembly comprises sensor, and said signal pickup assembly passes to said signal processor with the signal that collects, and the signal of the said signal processor processes of process is through said external interface transmission; Said sensor comprises coaxial stator and rotor, and said sensor is through the acquired signal that relatively rotates of said stator and said rotor.
Preferably, said signal pickup assembly also comprises piston shoes, swing arm and main shaft, and said piston shoes contact with ground; Said swing arm one end and said piston shoes are hinged, and the other end is fixedly connected with said main shaft; The rotating level of said main shaft is installed in the through hole of housing; Said stator is fixed on the said housing, and said rotor is fixed on position corresponding with said stator on the said main shaft.
Preferably, the through hole of said housing is installed support member, and said stator is fixedly mounted on the said support member.
Preferably, said rotor and said main shaft interference fit.
Preferably, said main shaft is installed in the through hole of said support member through bearing.
Preferably, said signal processor is fixed on the base plate of said housing.
Preferably, said external interface is positioned at the side of said housing.
Preferably, said sensor has the control function, and said sensor can carry out levelling control according to the signal that collects.
Preferably, said levelling sensing device also comprises Levelling Controller, and said external interface passes to said Levelling Controller with said signal, and said Levelling Controller is carried out levelling control through said signal.
The utility model also provides a kind of levelling to control system, comprises controller and levelling sensing device, and said levelling sensing device is above-mentioned each described levelling sensing device.
The levelling sensing device that the utility model provides comprises signal pickup assembly, signal processor and external interface; Said signal processor links to each other with said external interface with said signal pickup assembly respectively; Said signal pickup assembly comprises sensor, and said signal pickup assembly passes to said signal processor with the signal that collects, and the signal of the said signal processor processes of process is through said external interface transmission; Said sensor comprises coaxial stator and rotor, and said sensor is through the acquired signal that relatively rotates of said stator and said rotor.
Whether smooth said signal pickup assembly through the said sensor acquisition information to ground; And said signal passed to said signal processor; Said signal processor calculates the concrete condition on said ground; And pass to said levelling sensing control controller outside through said external interface, the final levelling that realizes said ground of said controller.
When whether smooth said sensor obtain said ground signal through relatively rotating of said stator and rotor; Do not need the transmission of belt and belt pulley or other devices; Directly just can obtain effective information; The precision and the reliability of said sensor are higher, and then the precision of said levelling sensing device and reliability are also all higher.
In a kind of mode, said signal pickup assembly also comprises piston shoes, swing arm and main shaft, and said piston shoes contact with ground; Said swing arm one end and said piston shoes are hinged, and the other end is fixedly connected with said main shaft; The rotating level of said main shaft is installed in the through hole of housing; Said stator is fixed on the said housing, and said rotor is fixed on position corresponding with said stator on the said main shaft.
Said piston shoes contact with said ground and whether can respond to said ground smooth, and when the out-of-flatness of said ground, said piston shoes will have identical slope trend with said ground.Along with advancing of said levelling sensing device, said swing arm will be swung along with the slope trend on said ground, and drive said main shaft co-rotation.Said sensor can obtain the rotational angle of said main shaft and pass to said signal processor, and said signal processor can draw the inclination situation on said ground to the Signal Processing that obtains.
Said main shaft can be perpendicular to the perpendicular at said swing arm place.Said stator and said rotor coaxial, the angle of rotating each other between said stator and the said rotor is the angle that said main shaft rotates.
In the mode further, the through hole of said housing is installed support member, and said stator is fixedly mounted on the said support member.
Said stator is fixed on the support member of said housing, can guarantee that said stator is fixedly connected and all is fine with the mounting means of said rotor coaxial.
In the further preferred mode, said rotor and said main shaft interference fit.
Said rotor and said main shaft interference fit can guarantee said rotor and said main shaft co-rotation, and the angle of said rotor rotation is the angle that said main shaft rotates.
In the another kind of mode, said main shaft is installed in the through hole of said support member through bearing.
Said main shaft is installed the smoothness that can guarantee said main axis rotation through bearing.
In another kind of mode, said signal processor is fixed on the base plate of said housing.
Said signal processor is fixed on the base plate of said housing and makes it have definite station.
In the another kind of mode, said external interface is positioned at the side of said housing.
Said external interface is installed in the side of said housing, is used to connect the controller of said hull outside, and signal is passed to said controller.
In a kind of preferred mode, said sensor has the control function, and said sensor can carry out levelling control according to the signal that collects.
Said sensor has the control function simultaneously, can in acquired signal, carry out levelling control.
In the another kind of preferred mode, said levelling sensing device also comprises Levelling Controller, and said external interface passes to said Levelling Controller with said signal, and said Levelling Controller is carried out levelling control through said signal.
Said levelling sensing device also comprises Levelling Controller, and said Levelling Controller can be carried out levelling control, and whether smooth said levelling sensing device can carry out levelling to said ground when obtaining ground signal.
The utility model also provides a kind of levelling to control system, comprises the levelling sensing device, and the levelling sensing device that system is controlled in said levelling has higher precision and reliability.
Description of drawings
Fig. 1 is a kind of sectional view of typical levelling sensing device;
Fig. 2 is the axonometric drawing of levelling sensing device shown in Figure 1;
Fig. 3 is the levelling sensing device working state schematic representation that the utility model provided;
Fig. 4 is the sectional view of a kind of embodiment of levelling sensing device shown in Figure 3;
Fig. 5 is the sketch map of a kind of mounting means of levelling sensing device external interface shown in Figure 3;
Fig. 6 is the stator of levelling sensing device shown in Figure 3 and the structural representation of rotor.
The specific embodiment
The core of the utility model provides a kind of levelling sensing device, and this levelling sensing device not only has higher precision but also have higher reliability.Another core of the utility model provides a kind of levelling control system that comprises above-mentioned levelling sensing device.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is done further to specify below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 3 to Fig. 6; Fig. 3 is the levelling sensing device working state schematic representation that the utility model provided; Fig. 4 is the sectional view of a kind of embodiment of levelling sensing device shown in Figure 3; Fig. 5 is the sketch map of a kind of mounting means of levelling sensing device external interface shown in Figure 3, and Fig. 6 is the stator of levelling sensing device shown in Figure 3 and the structural representation of rotor.
In a kind of concrete embodiment, the levelling sensing device that the utility model provides comprises signal pickup assembly, signal processor 11 and external interface 12; Said signal processor 11 links to each other with said external interface 12 with said signal pickup assembly respectively; Said signal pickup assembly comprises sensor 71, and said signal pickup assembly passes to said signal processor 11 with the signal that collects, and the signal of handling through said signal processor 11 transmits through said external interface 12; Said sensor 71 comprises coaxial stator 72 and rotor 73, and said sensor 71 is through the relatively rotate acquired signal of said stator 72 with said rotor 73.
Whether smooth said signal pickup assembly can collect ground 6 information through said sensor 71; And said signal passed to said signal processor 11; 11 pairs of said Signal Processing of said signal processor can draw the smooth situation on said ground 6; And pass to controller outside through said external interface 12, the final levelling that realizes said ground 6 of said controller.
When whether smooth said sensor 71 obtain said ground 6 signal through relatively rotating of said stator 72 and rotor 73; Do not need the transmission of belt composition or other devices; Directly just can obtain effective information; The precision and the reliability of said sensor 71 are higher, and then the precision of said levelling sensing device and reliability are also all higher.
In the another kind of concrete embodiment, said signal pickup assembly also comprises piston shoes 5, swing arm 3 and main shaft 2, and said piston shoes 5 contact with ground 6; Said swing arm 3 one ends and said piston shoes 5 are hinged, and the other end is fixedly connected with said main shaft 2; Said main shaft 2 rotating levels are installed in the through hole of housing 10; Said stator 72 is fixed on the said housing 10, and said rotor 73 is fixed on the said main shaft 2 position corresponding with said stator 72.
Said piston shoes 5 contact with said ground 6 and whether can respond to said ground 6 smooth, and when 6 out-of-flatnesses of said ground, said piston shoes 5 will have identical slope trend with said ground 6.Along with advancing of said levelling sensing device, said swing arm 3 will be swung along with the slope trend on said ground 6, and drive said main shaft 2 co-rotation.Said sensor 71 can obtain the rotational angle of said main shaft 2 and pass to said signal processor 11, and the Signal Processing of 11 pairs of acquisitions of said signal processor can draw the inclination situation on said ground 6.
During the work of said levelling sensing device, by suspension arrangement 1 lifting on its top, and all the time to the operator to advancing.Common said swing arm 3 is for what tilt, and said levelling sensing device is provided with the said swing arm 3 of counterweight 4 balances.
Said main shaft 2 can be perpendicular to the perpendicular at said swing arm 3 places.Said piston shoes 5 have the plane that contacts with said ground 6, and said swing arm 3 and said piston shoes 5 are hinged, said main shaft 2 levels and the perpendicular that belongs to perpendicular to said swing arm 3.
Said swing arm 3 can draw the inclination situation on said ground 6 with angle, the length of said swing arm 3, the height of said main shaft 2 and the data such as rotational angle of said main shaft 2 on said ground 6 when said ground 6 was smooth.
Said main shaft 2 is confirmed to the distance on the standard water plane on said ground 6; Said swing arm 3 is confirmed with the angle on said standard water plane; The length of said swing arm 3 is confirmed; When the position of said swing arm 3 changes, be easy to calculate the change in location of said swing arm 3 lower ends, the height on promptly said ground 6 changes.
Said stator 72 and said rotor 73 are coaxial, and the angle of rotating each other between said stator 72 and the said rotor 73 is the angle that said main shaft 2 rotates.The fixed-site of said stator 72, the angle that said rotor 73 rotates is the angle that said main shaft 2 rotates.Said sensor 71 can pass to said signal processing apparatus 11 with the rotational angle that changes between said stator 72 and the said rotor 73, and said rotational angle and known information can draw the height situation of change on said ground 6.
In the further concrete embodiment, the through hole of said housing 10 is installed support member 21, and said stator 72 is fixedly mounted on the said support member 21.
Said support member 21 is fixedly mounted on said stator 72 in the said housing 10.
Obviously, the installation form of said stator 72 not only is confined to the described situation of the foregoing description, can guarantee that said stator 72 fixedly mounts and also can be applied in the utility model with said rotor 73 other coaxial mounting meanss.
In the further preferred embodiment, said rotor 73 and said main shaft 2 interference fit.
Said rotor 73 and said main shaft 2 interference fit can guarantee said rotor 73 and said main shaft 2 co-rotation.Said stator 72 is fixed, and the angle that then said rotor 73 rotates is the angle that said main shaft 2 rotates.
Certainly, said rotor 73 not only is confined to the described situation of the foregoing description with the type of attachment of said main shaft 2, can guarantee that said rotor 73 and other connected modes that said main shaft 2 rotates synchronously also are fine, and for example bolt connects or gluing connecing.
In the another kind of concrete embodiment, said main shaft 2 is installed in the through hole of said support member 21 through bearing 22.
Said main shaft 2 can be installed in the through hole of said support member 21 through bearing 22, and said support member 21 can be easy to guarantee that said stator 72 is coaxial with said rotor 73.Simultaneously, said bearing 22 also can guarantee the smoothness of said main shaft 2 rotations.
Obviously, the installation form of said main shaft also not only is confined to this, can realize the rotating installation of said main shaft and can guarantee simultaneously that said stator 72 and said rotor 73 other coaxial installation forms also can use in the utility model.
In the concrete embodiment of another kind, said signal processor 11 is fixed on the base plate of said housing 10.
Said signal processor 11 is fixed on the base plate of said housing 2, makes said signal processor 11 have definite operating position.When said levelling sensing device moves, confirm can not be moved in the position of said signal processor 11.Certainly, the installation site of said signal processor 11 closely is not confined to this.
In the another kind of concrete embodiment, said external interface 12 is positioned at the side of said housing 10.
Said external interface 12 is installed in the side of said housing 10, is used to connect the controller in said housing 10 outsides, and signal is passed to said controller.Obviously, the installation site of said external interface 12 also not only is confined to this.
A kind of preferred embodiment in, said sensor 71 has the control function, said sensor 71 can carry out levelling control according to the signal that collects.
Said sensor 71 has the control function, and said sensor 71 can carry out levelling control, and whether smooth said levelling sensing device can carry out levelling to said ground 6 when obtaining ground 6 signal.
In another preferred embodiment, said levelling sensing device also comprises Levelling Controller, and said external interface 12 passes to said Levelling Controller with said signal, and said Levelling Controller is carried out levelling control through said signal.
Said levelling sensing device also comprises Levelling Controller, and said Levelling Controller can be carried out levelling control, and whether smooth said levelling sensing device can carry out levelling to said ground 6 when obtaining ground 6 signal.
Said Levelling Controller can be positioned on the said piston shoes 5 executive component of said ground 6 levellings, and the levelling sensing device of this structure merges sensing element and executive component, when the said ground of induction 6 is whether smooth, levelling is carried out on said ground 6.
Can said sensing element and said executive component be merged; Also said executive component can be set separately; Can said sensing element and said executive component be arranged to one in front and one in back; Obtain signal by said sensing element in front, the executive component of back can carry out levelling control according to said signal.
Certainly, said Levelling Controller not only is confined to the described situation of the foregoing description, and other form of structure that can realize levelling control also are fine.
Except above-mentioned levelling sensing device, the utility model also provides a kind of levelling control system that comprises above-mentioned levelling sensing device, and the structure of these other each several parts of levelling control system please refer to prior art, and this paper repeats no more.
More than levelling that the utility model provided control system and levelling sensing device thereof have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a levelling sensing device comprises signal pickup assembly, signal processor (11) and external interface (12); Said signal processor (11) links to each other with said external interface (12) with said signal pickup assembly respectively; Said signal pickup assembly comprises sensor (71), and said signal pickup assembly passes to said signal processor (11) with the signal that collects, and the signal of handling through said signal processor (11) transmits through said external interface (12); It is characterized in that said sensor (71) comprises coaxial stator (72) and rotor (73), said sensor (71) is through the relatively rotate acquired signal of said stator (72) with said rotor (73).
2. levelling sensing device as claimed in claim 1 is characterized in that, said signal pickup assembly also comprises piston shoes (5), swing arm (3) and main shaft (2), and said piston shoes (5) contact with ground (6); Said swing arm (3) one ends and said piston shoes (5) are hinged, and the other end is fixedly connected with said main shaft (2); The rotating level of said main shaft (2) is installed in the through hole of housing (10); Said stator (72) is fixed on the said housing (10), and said rotor (73) is fixed on said main shaft (2) and goes up and the corresponding position of said stator (72).
3. levelling sensing device as claimed in claim 2 is characterized in that, the through hole of said housing (10) is installed support member (21), and said stator (72) is fixedly mounted on the said support member (21).
4. levelling sensing device as claimed in claim 3 is characterized in that, said rotor (73) and said main shaft (2) interference fit.
5. levelling sensing device as claimed in claim 4 is characterized in that, said main shaft (2) is installed in the through hole of said support member (21) through bearing (22).
6. levelling sensing device as claimed in claim 5 is characterized in that, said signal processor (11) is fixed on the base plate of said housing (10).
7. levelling sensing device as claimed in claim 6 is characterized in that, said external interface (12) is positioned at the side of said housing (10).
8. like each described levelling sensing device of claim 1 to 7, it is characterized in that said sensor (71) has the control function, said sensor (71) can carry out levelling control according to the signal that collects.
9. like each described levelling sensing device of claim 1 to 7; It is characterized in that; Said levelling sensing device also comprises Levelling Controller, and said external interface (12) passes to said Levelling Controller with said signal, and said Levelling Controller is carried out levelling control through said signal.
10. a levelling control system comprises controller and levelling sensing device, it is characterized in that said levelling sensing device is each described levelling sensing device of claim 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710980U CN202323659U (en) | 2011-11-23 | 2011-11-23 | Leveling sensing device and leveling control system |
| PCT/CN2012/074317 WO2013075456A1 (en) | 2011-11-23 | 2012-04-18 | Leveling sensing device and leveling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710980U CN202323659U (en) | 2011-11-23 | 2011-11-23 | Leveling sensing device and leveling control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202323659U true CN202323659U (en) | 2012-07-11 |
Family
ID=46435643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204710980U Expired - Fee Related CN202323659U (en) | 2011-11-23 | 2011-11-23 | Leveling sensing device and leveling control system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202323659U (en) |
| WO (1) | WO2013075456A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3519770A (en) * | 1968-07-19 | 1970-07-07 | Long George | Switching apparatus for servo system |
| US3791452A (en) * | 1971-03-17 | 1974-02-12 | Grad Line | Control system for road grader |
| JPH10147910A (en) * | 1996-11-15 | 1998-06-02 | Fujio Takehara | Paving controller for finisher |
| JPH10227006A (en) * | 1997-02-14 | 1998-08-25 | Fujio Takehara | Paving controller of finisher |
| JPH10266118A (en) * | 1997-03-25 | 1998-10-06 | Fujio Takehara | Indication and control system for finisher |
| JPH11209919A (en) * | 1998-01-26 | 1999-08-03 | Fujio Takehara | Paving stabilization controller |
| CN2611423Y (en) * | 2003-03-25 | 2004-04-14 | 宝应县兴亚特种电器有限公司 | Automatic protectino controller of levelling gage |
| JP2006300704A (en) * | 2005-04-20 | 2006-11-02 | Hitachi Cable Ltd | Rotation angle detecting sensor |
| CN201155077Y (en) * | 2008-01-31 | 2008-11-26 | 吴骏 | Digital leveling instrument for road spreader |
-
2011
- 2011-11-23 CN CN2011204710980U patent/CN202323659U/en not_active Expired - Fee Related
-
2012
- 2012-04-18 WO PCT/CN2012/074317 patent/WO2013075456A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2013075456A1 (en) | 2013-05-30 |
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| Date | Code | Title | Description |
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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: 20120711 Termination date: 20181123 |