CN201661566U - Engineering machine and pin shaft component thereof - Google Patents
Engineering machine and pin shaft component thereof Download PDFInfo
- Publication number
- CN201661566U CN201661566U CN2010201672319U CN201020167231U CN201661566U CN 201661566 U CN201661566 U CN 201661566U CN 2010201672319 U CN2010201672319 U CN 2010201672319U CN 201020167231 U CN201020167231 U CN 201020167231U CN 201661566 U CN201661566 U CN 201661566U
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- engineering machinery
- assembly
- bearing pin
- pin
- pin body
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Abstract
The utility model discloses an engineering machine and a pin shaft component thereof, wherein, the pin shaft component comprises a pin shaft body (21), and a power part (22) used for detaching the pin shaft body (21); a mounting hole formed on the pin shaft body (21) extends in the axial direction of the pin shaft body (21); and the power part (22) is detachably mounted in the mounting hole. The power part (22) is mounted in the mounting hole formed on the pin shaft body (21), so that the small occupied mounting space of the pin shaft component is ensured; and meanwhile, the power part (22) is detachably mounted in the mounting hole, so that when damaged, the power part (22) can be detached, maintained and replaced independently, which remarkably reduces the maintenance cost of the pin shaft component.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of Assembly of pin that is used for engineering machinery.The utility model also relates to a kind of engineering machinery that comprises above-mentioned Assembly of pin.
Background technique
Fast development along with China's economic construction, market increases day by day for the demand of various engineering machinery, engineering machinery also constantly develops towards the direction of large-tonnage, super-tonnage, the weight of its car load also constantly increases thereupon, and structural type is huge day by day and complicated, and the complete machine transition is difficulty comparatively, therefore, when cutting to than the large-tonnage engineering machinery, engineering machinery need be disassembled into some parts usually, re-assembly again after being transported to the operation place.
Normally connect by Assembly of pin between each parts that links together removably in engineering machinery, when two adjacent parts transport respectively, bearing pin is extracted in pin-and-hole, two parts realize splitting; After parts are transported to the operation place, bearing pin is inserted pin-and-hole, realize the assembling between each parts.But, in relatively large engineering machinery, bearing pin need bear bigger pressure and moment of torsion as stressed member, the physical dimension of bearing pin and own wt are all bigger, be difficult to finish disassembling and assembling operation between the plug of bearing pin and each parts by manpower, therefore, in large tonnage engineering machinery, use Assembly of pin to realize the dismounting and the assembling of each parts usually with automatic plug function.
A kind of typical Assembly of pin comprises the bearing pin body and the oil cylinder of power is provided for the bearing pin body, oil cylinder is installed in the appropriate location of bearing pin body between body, the Plug Action of the flexible realization bearing pin body by oil cylinder, this typical Assembly of pin needs enough spaces to satisfy its stroke needs at work, in large tonnage engineering machinery, use this kind Assembly of pin to need bigger installing space, make that the volume and weight of engineering machinery self is bigger, appreciable impact the service behaviour of engineering machinery.In order to reduce the working space of Assembly of pin, Assembly of pin in the large tonnage engineering machinery can be power pin, this power pin is specially the structure that oil cylinder and bearing pin body is processed into integral type, the cylinder barrel of oil cylinder forms the bearing pin body, the automatic Plug Action of the flexible realization bearing pin body by oil cylinder.But, in this power pin that oil cylinder and bearing pin body are processed as one, when oil cylinder damages, can only be with the Assembly of pin integral replacing, maintaining is difficulty relatively, and maintenance expenses is higher.
Therefore, how in guaranteeing engineering machinery, under the less situation of Assembly of pin working space, reduce the difficulty and the maintenance cost of its maintaining, just become the problem that those skilled in the art need solve.
The model utility content
The purpose of this utility model provides a kind of Assembly of pin that is used for engineering machinery, and its working space that takies is less, and has lower maintaining difficulty and maintenance cost.Another purpose of the present utility model provides a kind of engineering machinery that comprises above-mentioned Assembly of pin.
For solving the problems of the technologies described above, the utility model provides a kind of Assembly of pin that is used for engineering machinery, comprises the bearing pin body, and the power unit that is used for the described bearing pin body of dismounting; Described bearing pin body offers mounting hole, and described mounting hole extends axially along described bearing pin body, and described power unit is installed in the described mounting hole removably.
Preferably, described power unit is an oil cylinder.
Preferably, also comprise supporting part on the body that is installed on described engineering machinery; In the cylinder barrel of described oil cylinder and the cylinder bar one is connected with described bearing pin body, and another person is connected with described supporting part.
Preferably, described supporting part comprises the support frame on the body that is installed on described engineering machinery, described support frame offers the axially extended slideway along described bearing pin body, in the described slideway guide runner is installed, and first positioning element that selectively locks described guide runner position; Described cylinder barrel or cylinder bar connect described guide runner.
Preferably, described support frame comprises the bearing of the body that is installed on described engineering machinery, with by hinging shaft and the hinged support of described bearing, described slideway is opened in the both sides of described support, the axis of described hinging shaft is substantially perpendicular to the axis of described bearing pin body; Also be provided with second positioning element of selectively both being fixed between described bearing and the described support.
Preferably, described bearing is installed on one in two parts that described bearing pin body connected.
Preferably, described hinging shaft is arranged at the side near described bearing.
Preferably, also comprise the baffle plate that is installed on described bearing pin body end face, described cylinder barrel is fixedly connected on described bearing pin body by described baffle plate.
The utility model also provides a kind of engineering machinery, comprises above-mentioned each described Assembly of pin.
Further, be specially hoist.
The Assembly of pin that is used for engineering machinery provided by the utility model comprises bearing pin body and power unit, the bearing pin body selectively connects two parts that need dismounting of engineering machinery, power unit is used to drive the bearing pin body and finishes Plug Action, offer mounting hole on the bearing pin body, this mounting hole extends axially along the bearing pin body, and power unit is installed in this mounting hole removably.Like this, power unit is installed in the mounting hole of offering on the bearing pin body, guaranteed that the shared installing space of Assembly of pin is less, simultaneously, power unit and bearing pin body are split type structure, are installed on removably on the bearing pin body, when power unit is damaged by link, power unit can be pulled down and keep in repair separately and change, thereby significantly reduce the maintenance cost of Assembly of pin; And power unit can be pulled down, thereby is convenient to power unit is carried out care and maintenance.
A kind of preferred embodiment in, Assembly of pin provided by the utility model can also comprise the supporting part on the body that is installed on engineering machinery, above-mentioned power unit can be oil cylinder, and one in the cylinder barrel of this oil cylinder and the cylinder bar is connected with the bearing pin body, and another person is connected with above-mentioned supporting part.When two parts that are connected by Assembly of pin on the engineering machinery need be dismantled, oil cylinder stretches out, because cylinder barrel is fixedlyed connected with the bearing pin body, this moment, cylinder barrel maintained static, the cylinder bar stretches out with respect to cylinder barrel and bearing pin body, the cylinder bar is fixed on the above-mentioned supporting part by first positioning element after extending out to the appropriate location, then, control oil cylinder retraction, because the cylinder bar is fixed on the body of engineering machinery by supporting part, the weight of the body of engineering machinery is far longer than the weight of bearing pin body, and the bearing pin body is being deviate from its pin shaft hole under the effect of oil cylinder, thereby finishes the action of pulling pin; When needs were installed bearing pin, the control oil cylinder stretched out, and cylinder barrel drives the bearing pin body and stretches out, and the bearing pin body is plugged in its pin shaft hole, then removed fixedlying connected between cylinder bar and the supporting part, and the oil cylinder retraction is regained the cylinder bar, thereby realizes the latch action.Realize the inserted pin action by the oil cylinder under the HYDRAULIC CONTROL SYSTEM, control comparatively stable, thereby improved the operational stability that the Assembly of pin inserted pin moves.
In another preferred embodiment, support frame provided by the present invention can comprise the bearing that is installed on described bearing pin body and by hinging shaft and the hinged support of described bearing; Perpendicular to the axis of bearing pin body, support can rotate with respect to support around hinging shaft the axis of this hinging shaft, also is provided with second positioning element of selectively both being fixed between bearing and support substantially.When supporting part was in running order, the relative position between the second positioning element fixed support and the bearing made support and bearing be in coaxial substantially position; When the bearing pin body is used to connect two assembling part of engineering machinery, supporting part is in off working state, at this moment, second positioning element is opened, support can rotate with respect to bearing, make supporting part be in folded state, thereby avoided supporting part when off working state, miscellaneous part to be caused interference, and then improved the job security of engineering machinery.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of Assembly of pin provided by the utility model;
Fig. 2 is the cross-sectional schematic of Assembly of pin shown in Figure 1;
Structural representation when Fig. 3 is in off working state for Assembly of pin shown in Figure 1;
Structural representation when Fig. 4 is in initial installment state before pulling pin for Assembly of pin shown in Figure 1;
Fig. 5 pulls pin for Assembly of pin shown in Figure 1 is in and carries out structural representation in the state;
Fig. 6 is in the structural representation of pulling pin when finishing state for Assembly of pin shown in Figure 1.
Embodiment
Core of the present utility model provides a kind of Assembly of pin that is used for engineering machinery, and its working space that takies is less, and has lower maintaining difficulty and maintenance cost.Another core of the present utility model provides a kind of engineering machinery that comprises above-mentioned Assembly of pin.
In order to make those skilled in the art person understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of embodiment of Assembly of pin provided by the utility model; Fig. 2 is the cross-sectional schematic of Assembly of pin shown in Figure 1.
In a kind of embodiment, Assembly of pin provided by the present invention is used for selectively connecting needs dismounting on the engineering machinery and two parts of assembling, two parts that connect by Assembly of pin can be for than arbitrary joint arm and turntable on the hoister in large tonnage, perhaps other adjacent two parts that need split and assemble.Below be example with arbitrary arm on the hoist and the Assembly of pin between the turntable, introduce the structure and the working procedure of Assembly of pin provided by the present invention.
Above-mentioned Assembly of pin comprises bearing pin body 21 and power unit 22, wherein bearing pin body 21 is used for selectively connecting above-mentioned arm and turntable, power unit 22 is used to plug bearing pin body 21, the Plug Action that also is bearing pin body 21 provides driving force, offer mounting hole on this bearing pin body 21, this mounting hole extends axially along bearing pin body 21, also is that its axis is parallel substantially with the axis of bearing pin body 21, and power unit 22 is installed in this mounting hole removably.
Above-mentioned bearing pin body 21 selectively connects arm and turntable is meant, bearing pin body 21 is connected arm under predetermined situation with turntable, and under other situation, do not connect arm and turntable, particularly, when hoist need split transition, bearing pin body 21 does not connect arm and turntable, arm is pulled down on turntable, so that realize splitting and transportation transition respectively, transition finishes when needing assembling, bearing pin body 21 is connected in arm on the turntable, and mechanism realizes assembling and can successfully enter working state.
Above-mentioned mounting hole is axially offered along bearing pin body 21, and its concrete size should be determined according to the size of power unit 22 and the stressing conditions of bearing pin body 21, not do qualification at this.It is to be noted, the axis of above-mentioned mounting hole can coincide with the axis of bearing pin body 21, it also is the centre that mounting hole is opened in bearing pin body 21, the axis of mounting hole can be not coincide with the axis of bearing pin body 21 yet, is that mounting hole can be opened in the appropriate location on the side of bearing pin body 21 yet.In addition, mounting hole is opened in the exterior edge face of bearing pin body 21, and it also can extend to the interior edge face of bearing pin body 21, forms the through hole that runs through bearing pin body 21, can certainly be the blind hole that is opened on exterior edge face or the interior edge face.
The exterior edge face of above-mentioned bearing pin body 21 is meant when bearing pin body 21 is deviate from, and the end face of at first deviating from is obvious, and its interior edge face is meant and above-mentioned exterior edge face opposing end faces.
Like this, power unit 22 is installed in the mounting hole of offering on the bearing pin body 21, guaranteed that the shared installing space of Assembly of pin is less, simultaneously, power unit 22 is split type structure with bearing pin body 21, is installed on the bearing pin body 21 by link is removable, when power unit 22 is damaged, power unit 22 can be pulled down and keep in repair separately and change, thereby significantly reduce the maintenance cost of Assembly of pin; And power unit 22 can be pulled down, thereby is convenient to power unit 22 is carried out care and maintenance.
Please continue with reference to figure 1 and Fig. 2, can also be further improved Assembly of pin provided by the present invention.
Above-mentioned power unit 22 can be oil cylinder, and by the flexible Plug Action of finishing bearing pin body 21 of oil cylinder, the flexible of oil cylinder can be by the HYDRAULIC CONTROL SYSTEM of hoist self, and control is stable and cost is lower.
This Assembly of pin can also comprise the supporting part on the body that is installed on hoist, and the cylinder barrel 221 of oil cylinder and cylinder bar 222 one among both be connected with bearing pin body 21, and another person is connected with supporting part.Like this, when bearing pin body 21 need be extracted, the withdrawal of control oil cylinder, because the weight of supporting part is much larger than the weight of bearing pin body 21, then in cylinder barrel 221 and the cylinder bar 222, what be connected with supporting part one maintains static, and another person who is connected with bearing pin body 21 drives bearing pin body 21 and deviates from; When bearing pin body 21 needed to insert, in cylinder barrel 221 and the cylinder bar 222, what is connected with supporting part one maintained static another person who is connected with bearing pin body 21,21 insertions of drive bearing pin body.
It is pointed out that above-mentioned cylinder barrel 221 or cylinder bar 222 and supporting part ways of connecting can be specially, cylinder barrel 221 or cylinder bar 222 one among both fixedly connected with supporting part all the time, and another person stretches out with respect to supporting part or withdraws; Also can make cylinder barrel 221 or cylinder bar 222 one among both selectively fix with supporting part.
Above-mentioned supporting part can comprise the support frame on the body that is installed on engineering machinery, offer axially extended slideway on this support frame along bearing pin body 21, guide runner 23 is installed in the slideway, and first positioning element 251 that selectively locks guide runner 23 positions; Cylinder barrel 221 or cylinder bar 222 connect guide runner 23.
When the cylinder barrel 221 that is connected with guide runner 23 or cylinder bar 222 are flexible, driving the guide runner 23 of fixedlying connected with it slides on slideway, when guide runner 23 slides into the precalculated position, by first positioning element 251 guide runner 23 is locked in appropriate location on the support frame, like this, under the restriction of guide runner 23, cylinder barrel 221 or cylinder bar 222 are being restricted perpendicular to the motion on the flexible direction, also avoided simultaneously cylinder barrel 221 or cylinder bar 222 effect lower swing, thereby improved the functional reliability of Assembly of pin in external force.
Above-mentioned first positioning element can be specially locating stud, at this moment, need offer positioning pin hole in the appropriate location of support frame and guide runner 23.Locating stud can be plugged in by manual mode in the pin-and-hole, also can carry out plug-in mounting by conventional other plug-in mounting modes of using in related domain.First positioning element also is not limited to locating stud, also can be conventional other positioning elements that use in related domain.
It is pointed out that the axial dimension of support frame should equal the stroke of oil cylinder at least, guaranteeing secure support, and can not interfere the extrusion of oil cylinder oil cylinder.In addition, the radial dimension of support frame should be greater than the diameter of axle of bearing pin, to guarantee that bearing pin can stretch out smoothly.
Above-mentioned Assembly of pin can also comprise the baffle plate 24 of the exterior edge face that is installed on bearing pin body 21, and cylinder barrel 221 is fixedly connected on bearing pin body 21 by baffle plate 24.Like this, the baffle plate 24 that is provided with in the exterior edge face has further limited cylinder barrel 221 motion in the axial direction, thereby has further improved the functional reliability of Assembly of pin.Apparently, in order to guarantee the proper functioning of oil cylinder, baffle plate 24 should not hinder the flexible of cylinder bar 222.This baffle plate 24 can be cirque structure, and its annular entity part is blocked cylinder barrel 221, and the center hole of cylinder bar 222 process baffle plates 24 stretches out or withdraws.
Please refer to Fig. 3, the structural representation when Fig. 3 is in off working state for Assembly of pin shown in Figure 1.
Above-mentioned support frame comprises the bearing 261 of the body that is installed on engineering machinery and by the hinged support 262 of hinging shaft 27 and bearing 261, slideway is opened in the both sides of support 262, and the axis of hinging shaft 27 is substantially perpendicular to the axis of bearing pin body 21; Also be provided with second positioning element of selectively both being fixed 252 between bearing 261 and the support 262.Like this, when supporting part was in running order, the relative position between second positioning element, 252 fixed supports 262 and the bearing 261 made this position can make things convenient for bearing pin body 21 and oil cylinder to stretch out; When supporting part is in off working state, at this moment, second positioning element 252 is opened, support 262 can rotate with respect to bearing 261, make supporting part be in folded state, thereby avoided supporting part when off working state, miscellaneous part to be caused interference, and then improved the job security of engineering machinery.
Above-mentioned bearing 261 can be installed on one in two parts that bearing pin body 21 connected.Like this, bearing 261 is relatively near Assembly of pin, and it is less to take up room.Bearing 261 can also be installed on other positions of the body of engineering machinery, and for example turntable etc. is located.
Above-mentioned hinging shaft 27 can be arranged at the side near bearing 261, and like this, support 262 is arranged near one of two parts that are connected after folding with respect to bearing 261, has further reduced the working space of Assembly of pin.
Please refer to Fig. 4, Fig. 5 and Fig. 6, the structural representation when Fig. 4 is in initial installment state before pulling pin for Assembly of pin shown in Figure 1; Fig. 5 pulls pin for Assembly of pin shown in Figure 1 is in and carries out structural representation in the state; Fig. 6 is in the structural representation of pulling pin when finishing state for Assembly of pin shown in Figure 1.
Below selectively being connected with support 262 by cylinder bar 222 in the Assembly of pin between crane arm and the turntable, and the situation that cylinder barrel 221 is fixedlyed connected with bearing pin body 21 is example, introduces the working procedure of Assembly of pin.
When the arm that is connected by Assembly of pin on the hoist and turntable need be dismantled, the oil cylinder elongation, because cylinder barrel 221 is fixedlyed connected with bearing pin body 21, this moment, cylinder barrel 221 maintained static, cylinder bar 222 stretches out with respect to cylinder barrel 221 and bearing pin body 21, driving guide runner 23 simultaneously outwards moves along the slide rail of support 262 both sides, after extending out to the appropriate location, cylinder bar 222 is fixed on the precalculated position of support 262 by first positioning element 251, then, control oil cylinder retraction, because cylinder bar 222 is fixed on the body of hoist by support 262, the quality of the body of hoist is far longer than the weight of bearing pin body 21, bearing pin body 21 is being deviate from its pin shaft hole under the effect of oil cylinder, thereby finishes the action of pulling pin; When needs are installed bearing pin, the elongation of control oil cylinder, cylinder barrel 221 drives bearing pin body 21 and stretches out, and bearing pin body 21 is plugged in its pin shaft hole, at this moment, the gravity of arm puts on the bearing pin body 21, it is formed shearing force radially, then remove the positioning action of 251 pairs of cylinder bars of first positioning element 221 and support 262, because the gravity of two arms is much larger than the gravity of cylinder bar 222 and guide runner 23, therefore, the oil cylinder retraction is regained cylinder bar 222 and guide runner 23, the slideway that makes guide runner 23 break away from the support 262, then, second positioning element 252 between support 262 and the bearing 261 is thrown off, and support 262 turns to suitable position with respect to bearing 261, thereby finishes the latch action.
The foregoing description is to be that example is described with the Assembly of pin between the arm in the hoist, in the using process of reality, this Assembly of pin goes in the various engineering machinery, can be used between the miscellaneous part of hoist, the application area of this Assembly of pin should not be subjected to the restriction of this specification yet.
Except above-mentioned Assembly of pin, the present invention also provides a kind of engineering machinery that comprises above-mentioned Assembly of pin, and the structure of other each several parts of this project machinery please refer to prior art, does not repeat them here.
Particularly, above-mentioned engineering machinery can be hoist.
More than a kind of engineering machinery provided by the utility model and Assembly of pin thereof are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.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. an Assembly of pin that is used for engineering machinery comprises bearing pin body (21), and the power unit (22) that is used for the described bearing pin body of dismounting (21); It is characterized in that described bearing pin body (21) offers mounting hole, described mounting hole extends axially along described bearing pin body (21), and described power unit (22) is installed in the described mounting hole removably.
2. the Assembly of pin that is used for engineering machinery according to claim 1 is characterized in that, described power unit (22) is an oil cylinder.
3. the Assembly of pin that is used for engineering machinery according to claim 2 is characterized in that, also comprises the supporting part on the body that is installed on described engineering machinery; Cylinder barrel of described oil cylinder (221) and cylinder bar (222) one among both be connected with described bearing pin body (21), and another person is connected with described supporting part.
4. the Assembly of pin that is used for engineering machinery according to claim 3, it is characterized in that, described supporting part comprises the support frame on the body that is installed on described engineering machinery, described support frame offers along the axially extended slideway of described bearing pin body (21), guide runner (23) is installed in the described slideway, and first positioning element (251) that selectively locks described guide runner (23) position; Described cylinder barrel (221) or cylinder bar (222) connect described guide runner (23).
5. the Assembly of pin that is used for engineering machinery according to claim 4, it is characterized in that, described support frame comprises the bearing (261) of the body that is installed on described engineering machinery, with by hinging shaft (27) and the hinged support (262) of described bearing (261), described slideway is opened in the both sides of described support (262), and the axis cardinal principle of described hinging shaft (27) is perpendicular to the axis of described bearing pin body (21); Also be provided with second positioning element of selectively both being fixed (252) between described bearing (261) and the described support (262).
6. the Assembly of pin that is used for engineering machinery according to claim 5 is characterized in that, described bearing (261) is installed on one in two parts that described bearing pin body (21) connected.
7. the Assembly of pin that is used for engineering machinery according to claim 6 is characterized in that, described hinging shaft (27) is arranged at the side near described bearing (261).
8. according to each described Assembly of pin that is used for engineering machinery of claim 1 to 7, it is characterized in that, also comprise the baffle plate (24) that is installed on described bearing pin body (21) end face, described cylinder barrel (221) is fixedly connected on described bearing pin body (21) by described baffle plate (24).
9. an engineering machinery is characterized in that, comprises each described Assembly of pin of claim 1 to 8.
10. engineering machinery according to claim 9 is characterized in that, is specially hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201672319U CN201661566U (en) | 2010-04-20 | 2010-04-20 | Engineering machine and pin shaft component thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201672319U CN201661566U (en) | 2010-04-20 | 2010-04-20 | Engineering machine and pin shaft component thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661566U true CN201661566U (en) | 2010-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201672319U Expired - Fee Related CN201661566U (en) | 2010-04-20 | 2010-04-20 | Engineering machine and pin shaft component thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999860A (en) * | 2018-08-20 | 2018-12-14 | 三汽车起重机械有限公司 | A kind of Assembly of pin and engineering machinery |
-
2010
- 2010-04-20 CN CN2010201672319U patent/CN201661566U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999860A (en) * | 2018-08-20 | 2018-12-14 | 三汽车起重机械有限公司 | A kind of Assembly of pin and engineering machinery |
| CN108999860B (en) * | 2018-08-20 | 2020-11-24 | 三一汽车起重机械有限公司 | Pin shaft assembly and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20140420 |