CN202542753U - Luffing crown block of luffing jib tower crane and luffing jib tower crane with luffing crown block - Google Patents
Luffing crown block of luffing jib tower crane and luffing jib tower crane with luffing crown block Download PDFInfo
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- CN202542753U CN202542753U CN 201220205485 CN201220205485U CN202542753U CN 202542753 U CN202542753 U CN 202542753U CN 201220205485 CN201220205485 CN 201220205485 CN 201220205485 U CN201220205485 U CN 201220205485U CN 202542753 U CN202542753 U CN 202542753U
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- 241000282326 Felis catus Species 0.000 claims description 9
- 239000004744 fabric Substances 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
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Abstract
The utility model provides a swing arm tower machine becomes width of cloth fixed pulley group and has its swing arm tower machine. The luffing crown block of the swing arm tower crane comprises: the pulley support comprises a mounting fixing part, a pulley supporting part and a joint connecting part which are relatively and fixedly arranged, the pulley supporting part is positioned between the mounting fixing part and the joint connecting part, and the mounting fixing part is used for being fixedly connected with the tower top of the movable arm tower crane; the fixed pulley block comprises more than two fixed pulleys which are coaxially and rotatably arranged on the pulley supporting part, and the more than two fixed pulleys comprise a starting end fixed pulley and a tail end fixed pulley; and the wedge-shaped joint is connected with the joint connecting part, and the rope feeding direction of the wedge-shaped joint and the rope winding groove of the tail end fixed pulley at the tail end of the more than two fixed pulleys are positioned in one plane. The utility model discloses prevent unbalanced moment of torsion effectively and produce, solved the deflection problem of running block well, reduced the moment of torsion of the width of cloth pull rod to the cantilever crane, improved swing arm tower machine's fail safe nature.
Description
Technical field
The utility model relates to the elevator machinery field, more specifically, relates to a kind of swing arm tower machine luffing fixed pulley group and has its swing arm tower machine.
Background technology
The maximum difference of swing arm tower machine and horizontal arm tower machine is that the jib of swing arm tower machine can rotate around the jib root, to realize the lifting luffing.The luffing of swing arm tower machine is to realize through the luffing steel rope that is located between swing arm tower machine luffing fixed pulley group and the luffing running block, promptly changes the length of luffing steel rope between swing arm tower machine luffing fixed pulley group and luffing running block and regulates the jib rotational angle.If upper surface steel rope and lower surface steel rope on swing arm tower machine luffing fixed pulley group and the luffing running block are regardless of other places on same plane; Just cause the deflection of luffing running block easily; Thereby act on the moment of torsion that produces on the jib through amplitude draw-bar; Have a negative impact to jib is stressed, reduced the safe reliability of swing arm tower machine.
Fig. 1 shows the scheme drawing of wiring state between luffing fixed pulley group and the luffing running block of prior art swing arm tower machine.Wedge joint 3 ' be fixed on swing arm tower machine luffing fixed pulley group 2 ' the coaxial and rotary arm-tie 1 ' on.6a ' begins to get into luffing fixed pulley group 2 ' to the luffing steel rope from the rope-in end; After twining between each pulley of luffing fixed pulley group 2 ' and luffing running block 8 ', the final stage 6d ' of the luffing steel rope that lays out from luffing running block 8 ' is fixed in the wedge joint 3 '.As shown in Figure 1; Because wedge joint 3 ' can be around the rotational of fixed pulley group 2 '; Upper surface steel rope 6b ' is in the same plane, but the axes intersect of the extended line of the final stage 6d ' of lower surface steel rope and fixed pulley group 2 ', thereby exceed lower surface steel rope 6c '; Thereby cause deflecting under the luffing running block 8 ' effect of one section steel rope 6d ' in the end; Thereby act on the moment of torsion that produces on the jib through amplitude draw-bar, the stressed of jib had a negative impact, reduced the safe reliability of swing arm tower machine.
The utility model content
The swing arm tower machine that the utility model purpose is that a kind of swing arm tower machine luffing fixed pulley group is provided and has it, the deflection problem that is intended to solve the luffing running block of swing arm tower machine.
The utility model provides a kind of swing arm tower machine luffing fixed pulley group; Comprise: pulley bracket; Pulley bracket comprises mounting part, pulley support portion and the joint connecting portion that relative fixed is provided with; Pulley support portion is positioned between mounting part and the joint connecting portion, and mounting part is used for captiveing joint with the cat head of swing arm tower machine; The fixed pulley group comprises coaxial two above fixed pulleys that are arranged at pulley support portion rotationally, and two above fixed pulleys comprise initiating terminal fixed pulley and terminal fixed pulley; Wedge joint is connected with the joint connecting portion, and the wiring groove that is in the terminal fixed pulley of extreme end in advance to restrict direction and two the above fixed pulleys of wedge joint is in the plane.
Further, swing arm tower machine luffing fixed pulley group also comprises the pulley support bearing pin, and the fixed pulley group is arranged in the pulley support portion through the pulley support bearing pin.
Further, pulley bracket comprises: crossbeam, and mounting part comprises crossbeam; The otic placode group comprises two with upper ear plate, two with upper ear plate respectively vertical fixing is on crossbeam, pulley support portion is arranged on two pin-and-holes to be equipped with the pulley support bearing pin on the upper ear plate.
Further, the joint connecting portion in two with at least one otic placode in the upper ear plate on.
Further, wedge joint comprises the joint bearing pin, and wedge joint articulates through joint bearing pin and joint connecting portion; The otic placode group comprises first otic placode and the second inboard otic placode that lays respectively at the terminal fixed pulley outside, and the joint connecting portion is to be separately positioned on the connecting bore that cooperates with the joint bearing pin on first otic placode and second otic placode.
Further, the otic placode group also comprises the 4th otic placode in the initiating terminal fixed pulley outside that is positioned at the fixed pulley group.
Further, the fixed pulley group also comprises fixed pulleys in the middle of three, and the otic placode group also comprises the third ear plate, and the third ear plate is in the middle of two between the fixed pulley, and is provided with two fixed pulleys between third ear plate and the 4th otic placode.
Further; Pulley bracket also comprises two above gussets; Two above gussets comprise initiating terminal gusset that is arranged at the 4th otic placode outside and the terminal gusset that is positioned at first otic placode outside; And the initiating terminal gusset respectively with crossbeam and the 4th otic placode vertical fixing, terminal gusset respectively with the crossbeam and the first otic placode vertical fixing.
Further, swing arm tower machine luffing fixed pulley group also comprises hook, and two hooks are arranged at respectively on the 4th otic placode and first otic placode, are used to hang the luffing running block of swing arm tower machine.
Further, swing arm tower machine luffing fixed pulley group also comprises retaining rope bar, and retaining rope bar is connected with first otic placode with the 4th otic placode respectively.
Further, pulley bracket also comprises connecting panel, and connecting panel is positioned at joint connecting portion one end of pulley bracket and captives joint with second otic placode with first otic placode respectively.
The utility model also provides a kind of swing arm tower machine, comprises cat head and is arranged at the aforesaid swing arm tower machine luffing fixed pulley group on the cat head.
According to the swing arm tower machine luffing fixed pulley group of the utility model and have its swing arm tower machine; Because being designed to the wiring groove of its rope outlet direction and terminal fixed pulley, the terminal wedge joint of binding in wire rope is in same plane; And wedge joint be connected with the relatively-stationary joint connecting portion of pulley installation portion on, rather than be connected on the rotary arm-tie of assembly pulley end, therefore; Situation with the axes intersect of fixed pulley group can not take place in the extended line of the final stage of luffing steel rope; Even also the upper and lower keystone strand wire rope of fixed pulley group is located at grade respectively, thereby prevent that effectively the overbalance moment of torsion from producing, and solved the deflection problem of running block well; Reduced the moment of torsion of amplitude draw-bar, improved the safe reliability of swing arm tower machine jib.This swing arm tower machine luffing fixed pulley group simple in structure, reasonable stress, resistance to overturning is good, and is easy for installation.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the scheme drawing of wiring state between swing arm tower machine luffing fixed pulley group and the luffing running block of prior art swing arm tower machine;
Fig. 2 is the local structure scheme drawing according to the swing arm tower machine with swing arm tower machine luffing fixed pulley group of the utility model;
Fig. 3 is the structural representation according to the swing arm tower machine luffing fixed pulley group of the swing arm tower machine of the utility model;
Fig. 4 is that the X of Fig. 2 is to structural representation; And
Fig. 5 is the scheme drawing according to wiring state between the swing arm tower machine luffing fixed pulley group of the swing arm tower machine of the utility model and the luffing running block.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment to specify the utility model.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
As shown in Figure 2; The A cabinet frame 60 of the swing arm tower machine of present embodiment all is to be connected with equilibrium arm 80 through bearing pin with crane arm 70; Amplitude draw-bar 50 is connected with crane arm 70 through bearing pin, and the luffing running block 30 on the amplitude draw-bar 50 passes through luffing steel rope 20 and is connected with luffing fixed pulley group 10 on the cat head 60 (or A cabinet frame).The crane arm 70 of swing arm tower machine is to rotate around the root of crane arm 70; To realize the lifting luffing; Its luffing is to realize that through being located between swing arm tower machine luffing fixed pulley group 10 and the luffing running block 30 luffing steel rope 20 changing the length of luffing steel rope 20 between swing arm tower machine luffing fixed pulley group 10 and luffing running block 30 is the angle that scalable crane arm 70 rotates.
The swing arm tower machine luffing fixed pulley group of the utility model mainly comprises pulley bracket, fixed pulley group and wedge joint.Said pulley bracket comprises mounting part, pulley support portion and the joint connecting portion that relative fixed is provided with; Said pulley support portion is positioned between said mounting part and the said joint connecting portion, and said mounting part is used for captiveing joint with the cat head of said swing arm tower machine.The fixed pulley group comprises coaxial two above fixed pulleys that are arranged at said pulley support portion rotationally.Wedge joint is connected with said joint connecting portion, and the wiring groove of the terminal fixed pulley in advance to restrict direction and said two the above fixed pulleys of said wedge joint is in the plane.
Like Fig. 3 to the embodiment shown in Figure 5, swing arm tower machine luffing fixed pulley group 10 comprises pulley bracket 1,4, two hooks 5 of 3, one pulley support bearing pins of the wedge joint of 2, one standards of fixed pulley group and retaining rope bar 6.
Pulley bracket 1 mainly comprises crossbeam 11 and otic placode group.Crossbeam 11 is connected as the cat head 60 of mounting part with swing arm tower machine.The otic placode group comprises two with upper ear plate; Comprise first otic placode 13, second otic placode 14, third ear plate 15 and the 4th otic placode 16 particularly; Each otic placode vertical fixing respectively is provided with the pin-and-hole that cooperates with pulley support bearing pin 4 respectively above each otic placode entablatrance 11 on crossbeam 11.Crossbeam 11 is preferably processed by steel pipe.
In the present embodiment, fixed pulley group 2 specifically comprises initiating terminal fixed pulley 21, middle fixed pulley 22,23,24 and terminal fixed pulley 25, and fixed pulley group 2 is arranged on the pulley bracket 1 on the pin-and-hole as pulley support portion through pulley support bearing pin 4.The fixed pulley group 2 that is appreciated that the utility model can comprise two, three, the fixed pulley more than four or five.
Particularly; First otic placode 13 is positioned at the outside of terminal fixed pulley 25 in the otic placode group; Second otic placode 14 is positioned at the inboard of terminal fixed pulley 25, and third ear plate 15 is between middle fixed pulley 22 and middle fixed pulley 23, and the 4th otic placode 16 is positioned at the outside of the initiating terminal fixed pulley 21 of fixed pulley group.
Above pin-and-hole on first otic placode 13 and second otic placode 14, be provided with the connecting bore that cooperates with joint bearing pin 31 respectively.Wedge joint 3 comprises joint bearing pin 31, and wedge joint 3 articulates through joint bearing pin 31 and connecting bore as the joint connecting portion.
Pulley bracket 1 also comprises connecting panel 17, and connecting panel 17 is positioned at joint connecting portion one end of pulley bracket 1 and captives joint with second otic placode 14 with first otic placode 13 respectively.Connecting panel 17 make win otic placode 13 and second otic placode 14 both form an integral body, increased the intensity of joint location portion, therefore played the terminal steel rope generation out-of-position effect that prevents.
Pulley bracket 1 also comprises two above gussets 12; Two above gussets 12 comprise initiating terminal gusset that is arranged at the 4th otic placode 16 outsides and the terminal gusset that is positioned at first otic placode, 13 outsides; And the initiating terminal gusset respectively with crossbeam 11 and the 4th otic placode 16 vertical fixing, terminal gusset respectively with crossbeam 11 and first otic placode, 13 vertical fixing.Two above gussets 12 can increase the bulk strength of pulley bracket 1.
Preferably, a weldment of forming by the above gusset of 11, two on crossbeam 12, the first otic placodes 13, second otic placode 14, third ear plate 15, the 4th otic placode 16 and connecting panel 17.
Swing arm tower machine luffing fixed pulley group also comprises hook 5; Two hooks 5 are arranged at respectively on the 4th otic placode 16 and first otic placode 13, and hook 5 hangs the luffing running block 30 of swing arm tower machine temporarily when being used between luffing fixed pulley group 10 and luffing fixed pulley group 30 wiring.
Swing arm tower machine luffing fixed pulley group also comprises retaining rope bar 6, and retaining rope bar 6 is connected with first otic placode 13 with the 4th otic placode 16 respectively.Retaining rope bar 6 can prevent that the luffing steel rope from deviating from from the wiring groove of each fixed pulley.
In conjunction with Fig. 3 to Fig. 5; When luffing steel rope 20 wirings, at first 5 be placed in luffing running block 30 on the pulley bracket 1 of swing arm tower machine luffing fixed pulley group 10 through two hooks temporarily, advance rope from the luffing steel rope 20 of steel rope drum 40 from the position near the initiating terminal fixed pulley 21 of the 4th otic placode 16 after; The cooresponding movable pulley of luffing running block 30 again wears long; The fixed pulley 22 that wears long then, the rest may be inferred, after luffing steel rope 20 passes all movable pulleys of luffing running block 30; After the position behind the terminal fixed pulley 25 near first otic placode 13, be connected on first otic placode 13 and second otic placode 14 through wedge joint 3.After wiring finishes, unclamp the luffing running block 30 on the hook 5, then luffing running block 30 couples together through amplitude draw-bar 50 and crane arm 70 under lifting mechanism and luffing mechanism combined action, thereby comes and realize the luffing of jib to whole jib pull-up.Steel rope 20 between this swing arm tower machine luffing fixed pulley group 10 and the luffing running block 30 is respectively on upper and lower two planes; Thereby solved the deflection problem of luffing running block 30; Reduced the moment of torsion of 50 pairs of jibs of amplitude draw-bar; Make the load-carrying capacity of swing arm tower machine good, torsional property is strong, has improved the safe reliability of swing arm tower machine.
From above description, can find out; The utility model the above embodiments have realized following technique effect: be in same plane because the terminal wedge joint of binding in wire rope is designed to the wiring groove of its rope outlet direction and terminal fixed pulley, and wedge joint be connected with the relatively-stationary joint connecting portion of pulley installation portion on, rather than be connected on the rotary arm-tie of assembly pulley end; Therefore; Situation with the axes intersect of fixed pulley group can not take place in the extended line of the final stage of luffing steel rope, even also the upper and lower keystone strand wire rope of fixed pulley group is located at grade respectively, thereby prevents that effectively the overbalance moment of torsion from producing; Solved the deflection problem of running block well, reduced the moment of torsion of amplitude draw-bar, improved the safe reliability of tower machine jib.This swing arm tower machine luffing fixed pulley group simple in structure, reasonable stress, resistance to overturning is good, and is easy for installation.And the wiring of luffing steel rope between swing arm tower machine luffing fixed pulley group and luffing running block is convenient and swift.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (12)
1. a swing arm tower machine luffing fixed pulley group is characterized in that, comprising:
Pulley bracket (1); Said pulley bracket (1) comprises mounting part, pulley support portion and the joint connecting portion that relative fixed is provided with; Said pulley support portion is positioned between said mounting part and the said joint connecting portion, and said mounting part is used for captiveing joint with the cat head (60) of said swing arm tower machine;
Fixed pulley group (2) comprises coaxial two above fixed pulleys that are arranged at said pulley support portion rotationally, and said two above fixed pulleys comprise initiating terminal fixed pulley (21) and terminal fixed pulley (25);
Wedge joint (3) is connected with said joint connecting portion, and the wiring groove that is in the terminal fixed pulley (25) of extreme end in advance to restrict direction and said two the above fixed pulleys of said wedge joint (3) is in the plane.
2. swing arm tower machine luffing fixed pulley group according to claim 1; It is characterized in that; Said swing arm tower machine luffing fixed pulley group also comprises pulley support bearing pin (4), and said fixed pulley group (2) is arranged in the said pulley support portion through said pulley support bearing pin (4).
3. swing arm tower machine luffing fixed pulley group according to claim 2, it is characterized in that said pulley bracket (1) comprising: crossbeam (11), said mounting part comprise said crossbeam (11);
The otic placode group comprises two with upper ear plate, said two with upper ear plate respectively vertical fixing is on said crossbeam (11), said pulley support portion is for being arranged on said two pin-and-holes to be equipped with said pulley support bearing pin (4) on the upper ear plate.
4. swing arm tower machine luffing fixed pulley group according to claim 3 is characterized in that, said joint connecting portion in said two with at least one otic placode in the upper ear plate on.
5. swing arm tower machine luffing fixed pulley group according to claim 4 is characterized in that,
Said wedge joint (3) comprises joint bearing pin (31), and said wedge joint (3) articulates through said joint bearing pin (31) and said joint connecting portion;
Said otic placode group comprises first otic placode (13) and inboard second otic placode (14) that lays respectively at said terminal fixed pulley (25) outside, and said joint connecting portion is gone up the connecting bore that cooperates with said joint bearing pin (31) for being separately positioned on said first otic placode (13) and said second otic placode (14).
6. swing arm tower machine luffing fixed pulley group according to claim 5 is characterized in that, said otic placode group also comprises the 4th otic placode (16) in initiating terminal fixed pulley (21) outside that is positioned at said fixed pulley group.
7. swing arm tower machine luffing fixed pulley group according to claim 6; It is characterized in that; Fixed pulley (22,23,24) in the middle of said fixed pulley group (2) also comprises three; Said otic placode group also comprises third ear plate (15), and said third ear plate (15) and is provided with two fixed pulleys between said third ear plate (15) and said the 4th otic placode (16) in the middle of two between the fixed pulley.
8. according to claim 6 or 7 described swing arm tower machine luffing fixed pulley groups; It is characterized in that; Said pulley bracket (1) also comprises two above gussets (12); Said two above gussets (12) comprise initiating terminal gusset that is arranged at said the 4th otic placode (16) outside and the terminal gusset that is positioned at said first otic placode (13) outside; And said initiating terminal gusset respectively with said crossbeam (11) and said the 4th otic placode (16) vertical fixing, said terminal gusset respectively with said crossbeam (11) and said first otic placode (13) vertical fixing.
9. according to claim 6 or 7 described swing arm tower machine luffing fixed pulley groups; It is characterized in that; Said swing arm tower machine luffing fixed pulley group also comprises hook (5); Two said hooks (5) are arranged at respectively on said the 4th otic placode (16) and said first otic placode (13), are used to hang the luffing running block (30) of said swing arm tower machine.
10. according to claim 6 or 7 described swing arm tower machine luffing fixed pulley groups, it is characterized in that said swing arm tower machine luffing fixed pulley group also comprises retaining rope bar (6), said retaining rope bar (6) is connected with said first otic placode (13) with said the 4th otic placode (16) respectively.
11. swing arm tower machine luffing fixed pulley group according to claim 5; It is characterized in that; Said pulley bracket (1) also comprises connecting panel (17), and said connecting panel (17) is positioned at said joint connecting portion one end of said pulley bracket (1) and captives joint with said second otic placode (14) with said first otic placode (13) respectively.
12. swing arm tower machine; Comprise cat head (60) and be arranged at the swing arm tower machine luffing fixed pulley group (10) on the said cat head (60); It is characterized in that said swing arm tower machine luffing fixed pulley group (10) is according to each described swing arm tower machine luffing fixed pulley group in the claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220205485 CN202542753U (en) | 2012-05-09 | 2012-05-09 | Luffing crown block of luffing jib tower crane and luffing jib tower crane with luffing crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220205485 CN202542753U (en) | 2012-05-09 | 2012-05-09 | Luffing crown block of luffing jib tower crane and luffing jib tower crane with luffing crown block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542753U true CN202542753U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220205485 Expired - Lifetime CN202542753U (en) | 2012-05-09 | 2012-05-09 | Luffing crown block of luffing jib tower crane and luffing jib tower crane with luffing crown block |
Country Status (1)
| Country | Link |
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| CN (1) | CN202542753U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992206A (en) * | 2012-12-20 | 2013-03-27 | 中联重科股份有限公司 | Swing arm tower crane and mounting method of swing arm tower crane variable amplitude pull rod |
| CN106006381A (en) * | 2016-06-21 | 2016-10-12 | 中船华南船舶机械有限公司 | Movable pulley yoke for ocean crane |
| CN109809310A (en) * | 2018-12-24 | 2019-05-28 | 科曼萨建设机械（杭州）有限公司 | A kind of movable arm tower crane pull rod and its installation method |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its crane |
| CN111762702A (en) * | 2020-07-20 | 2020-10-13 | 北京庞源机械工程有限公司 | Tower crane wire rope pretension locking device |
-
2012
- 2012-05-09 CN CN 201220205485 patent/CN202542753U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992206A (en) * | 2012-12-20 | 2013-03-27 | 中联重科股份有限公司 | Swing arm tower crane and mounting method of swing arm tower crane variable amplitude pull rod |
| CN102992206B (en) * | 2012-12-20 | 2015-04-22 | 中联重科股份有限公司 | Method for mounting luffing pull rod of movable arm tower crane |
| CN106006381A (en) * | 2016-06-21 | 2016-10-12 | 中船华南船舶机械有限公司 | Movable pulley yoke for ocean crane |
| CN109809310A (en) * | 2018-12-24 | 2019-05-28 | 科曼萨建设机械（杭州）有限公司 | A kind of movable arm tower crane pull rod and its installation method |
| CN109809310B (en) * | 2018-12-24 | 2024-06-11 | 科曼萨建设机械（杭州）有限公司 | Swing arm tower crane pull rod and installation method thereof |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its crane |
| CN111762702A (en) * | 2020-07-20 | 2020-10-13 | 北京庞源机械工程有限公司 | Tower crane wire rope pretension locking device |
| CN111762702B (en) * | 2020-07-20 | 2022-05-03 | 北京庞源机械工程有限公司 | Tower crane steel wire rope pre-tightening locking device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |