CN201747280U - Impact cylinder drilling tool and rotary drilling rig - Google Patents
Impact cylinder drilling tool and rotary drilling rig Download PDFInfo
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- CN201747280U CN201747280U CN2010205008098U CN201020500809U CN201747280U CN 201747280 U CN201747280 U CN 201747280U CN 2010205008098 U CN2010205008098 U CN 2010205008098U CN 201020500809 U CN201020500809 U CN 201020500809U CN 201747280 U CN201747280 U CN 201747280U
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Abstract
The utility model relates to the technical field of pile machines, and discloses an impact cylinder drilling tool, which includes a drill bit cylinder body and a drill tooth, and further includes more than one impactor driven by a power source. A force applying part of the impactor is arranged at the bottom of the drill bit cylinder body. The impact cylinder drilling tool can be applied on a rotary drilling rig, and the impact cylinder drilling tool has the advantages of higher drilling efficiency, lower energy consumption, less pollution, wide application rang and lower construction cost when operating on hard rocks. The utility model further discloses the rotary drilling rig equipped with the impact cylinder drilling tool.
Description
Technical field
The utility model relates to a machine technology field, discloses a kind of impact tube drilling tool.The invention also discloses a kind of rotary drilling rig with above-mentioned impact tube drilling tool.
Background technology
Rotary drilling rig is a kind of common large-scale stake machine, and it can creep into weak soil layer and uniaxial compressive strength fast and be not more than 100MPa, drillability less than 8 grades rock stratum.For the hard rock that surmounts above-mentioned zone, the low or phenomenon that is difficult to creep into of rotary drilling rig ubiquity drilling efficiency.Why existing rotary drilling rig can not creep into hard rock is because institute's applied pressure deficiency, and this is that the structure that changes drilling rod is very difficult by the structures shape of drilling rod.
Because the stake bore dia that rotary drilling rig excavated is bigger, in order to make rotary drilling rig to carry out operation to hard rock, usually the method that adopts the Large Diameter DTH Hammer hammer drill to advance in the prior art, with the bigger down-the-hole hammer of diameter catalase is become fine particle earlier, with the wet type crossover-circulating type method slag bits are discharged again, this method needs enough big reservoir to be used to supply with the slag bits that circulation deposits with mud and storage, and mud and slag bits make environment pollution serious, are difficult to work in lack of water, few water area; And down below when interflow and the work of serious seepage floor, must use to add casing and just can keep operate as normal, as seepage occurs and also need continuous additional mud.
This method adopts the method for complete fractured rock to come work basically, only in this way just may slag be considered to be worth doing in the tap with crossover-circulating type method, so this method power consumption is bigger, equipment volume and corresponding corollary system are huge, cause occupied ground bigger, and large diameter down-the-hole hammer costs an arm and a leg, the function singleness utilization rate is not high, and construction cost is higher.
Therefore, how to make rotary drilling rig to the hard rock operation time, energy consumption is lower, pollution is less, construction cost is lower, becomes the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
First purpose of the present utility model provides a kind of impact tube drilling tool, this impact tube drilling tool can be applicable on the rotary drilling rig, to the hard rock operation time, this impacts, and tube drilling tool drilling efficiency is higher, energy consumption is lower, pollution is less, range of application is wide, construction cost is lower.Another purpose of the present utility model provides a kind of rotary drilling rig with above-mentioned impact tube drilling tool.
In order to realize above-mentioned first purpose, the utility model provides a kind of impact tube drilling tool,, comprise drill bit tube body, bore tooth, also comprise being no less than one the impactor by drive power source, the force application part of described impactor is located at the bottom of described drill bit tube body.
Preferably, described impactor is located between the inner core and urceolus of described drill bit tube body, and fixes with bolted mode and described inner core or described urceolus by the impactor fixed block.
Preferably, described power source is for being used for providing to described impactor the gas compressing apparatus of gases at high pressure, and the gas outlet of described gas compressing apparatus is communicated with the air inlet port of impactor by appendix.
Preferably, described appendix comprises annular gas pipe and is connected tracheae, and described annular gas pipe is located at the top of described drill bit tube body, and described connection tracheae is located between described inner core and the described urceolus; The air inlet port of described annular gas pipe is communicated with the gas outlet of described gas compressing apparatus, and the gas outlet of described annular gas pipe is communicated with the described air inlet port that is connected tracheae, and the gas outlet of described connection tracheae is communicated with the air inlet port of described impactor.
Preferably, described power source is for being used for providing to described impactor the hydraulic pump of hydraulic oil.
Preferably, described power source is motor or internal combustion engine.
Preferably, described impactor is the down-the-hole hammer.
Preferably, described impactor is hammer or the churn drilling tools with spinfunction.
Preferably, the quantity of described impactor is a plurality of, and the force application part of each described impactor is distributed in the bottom of described drill bit tube body.
The impact tube drilling tool that the utility model provides comprises drill bit tube body, bores tooth, is no less than one the impactor by drive power source, and the force application part of described brill tooth, described impactor all is located at the bottom of drill bit tube body.
The impact tube drilling tool of this structure can be used for rotary drilling rig, on hard rock during operation, driving torque and pressure from drilling rod pass to the brill tooth of drill bit tube body bottom and the force application part of impactor, the force application part of impactor smashes rock simultaneously under the driving of power source, by the shear action of boring tooth thorough and rock mass disengaging, constantly creep into the purpose of going deep into lithosphere again thereby reach with rubble.
The impact tube drilling tool that the utility model provides has following technique effect with respect to prior art:
1. the impact tube drilling tool of this structure can be realized the broken and cutting of hard rock simultaneously, and drilling efficiency is higher.
2. the energy consumption that should impact the tube drilling tool only is 1/4～1/3 of Large Diameter DTH Hammer hammer energy consumption, and energy consumption is lower, and economic benefit is obvious.
3. the rig that uses this impact tube drilling tool is without just (instead) circulation worker method construction of gaslift, so do not need especially big mud storage pool and slush pump corollary equipment, equipment needed thereby is less and can not pollute surrounding environment.
4. it is wide to impact the suitable type scope of tube drilling tool, be suitable for multiple place, different types of machines, the rotary drilling rig that is particularly useful for the elevator pressurization, the rig working range that is equipped with this impact tube drilling tool is big, it is wide to be suitable for the stratum, does not change original function, the structure of rig, can be suitable for most construction, as dry method, wet method etc., applied range.
This impact tube drill bit be impact force by drill bit tube body bottom impactor directly act on rock with its destroy, bore simultaneously the tooth cutting the mode of cracked rock finish, can finely utilize the initial pre-applied force of the pressure of the unit head pressure that improves and the generation of conducting oneself with dignity as impactor, because drilling rod is made of more piece, how with friction mode work, can play the effect of buffering step by step, the anti-vibration that is delivered to rig is reduced greatly, improve the operating mode of rig, prolonged the application life of rig.
6. impactor is cheap with respect to large diameter down-the-hole hammer, and construction cost is lower.
In order to realize above-mentioned second purpose, the utility model also provides a kind of rotary drilling rig, and this rotary drilling rig has above-mentioned impact tube drilling tool, and described impact tube drilling tool is connected with the drilling rod of described rotary drilling rig.Because above-mentioned impact tube drilling tool has above-mentioned technique effect, the rotary drilling rig with this impact tube drilling tool also should have the corresponding techniques effect.
Description of drawings
Fig. 1 is the front view that impacts a kind of specific embodiment of tube drilling tool provided by the utility model;
Fig. 2 is the upward view that impacts the tube drilling tool among Fig. 1;
Fig. 3 is the vertical view that impacts the tube drilling tool among Fig. 1;
Fig. 4 is the distribution schematic diagram of impactor and appendix among Fig. 1;
Fig. 5 is the upward view of impactor and appendix among Fig. 4;
Fig. 6 is the sectional structure schematic diagram of drill bit tube body among Fig. 1;
Wherein, among Fig. 1-Fig. 6:
Drill bit tube body 1, connection side 11, bearing pin installing hole 11 11, positioning and guiding bar 12, urceolus 13, inner core 14, junction plate 15, water/vent hole 16, cylindrical shell top board 17, brill tooth 2, impactor 3, force application part 31, appendix 4, annular gas pipe 41, connection tracheae 42, impactor fixed block 5, protective cover 6.
The specific embodiment
First core of the present utility model provides a kind of impact tube drilling tool, this impact tube drilling tool can be applicable on the rotary drilling rig, to the hard rock operation time, this impacts, and tube drilling tool drilling efficiency is higher, energy consumption is lower, pollution is less, range of application is wide, construction cost is lower.Another core of the present utility model provides a kind of rotary drilling rig with above-mentioned impact tube drilling tool.
In order to make those skilled in the art better understand the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please referring to Fig. 1-Fig. 3, Fig. 1 is the front view that impacts a kind of specific embodiment of tube drilling tool provided by the utility model, and Fig. 2 is the upward view that impacts the tube drilling tool among Fig. 1, and Fig. 3 is the vertical view that impacts the tube drilling tool among Fig. 1.
As shown in Figure 1-Figure 3, the impact tube drilling tool that the utility model provides comprises drill bit tube body 1, bores tooth 2, impactor 3, and the quantity of boring tooth 2 is no less than one, and as shown in Figure 2, a plurality of brill teeth 2 are distributed in the bottom of drill bit tube body 1 in the form of a ring; The quantity of impactor 3 is no less than one, the force application part 31 of impactor 3 is arranged at the bottom of drill bit tube body 1, when an impact tube drilling tool acts on rock, the force application part 31 of impactor 3 can be against rock surface, impactor 3 is by drive power source, the force application part 31 of impactor 3 can produce vibration under the driving of power source, can be with catalase when this vibration acts on the rock.
In the preferred scheme, the quantity of impactor 3 can be for a plurality of, and the force application part 31 of each impactor 3 is evenly distributed and is arranged at the bottom of drill bit tube body 1.
The impact tube drilling tool of this structure can be used for rotary drilling rig, on hard rock during operation, driving torque and pressure from drilling rod pass to the brill tooth 2 of drill bit tube body 1 bottom and the force application part 31 of impactor 3, the force application part 31 of impactor 3 smashes rock simultaneously under the driving of power source, by the shear action of boring tooth 2 thorough and rock mass disengaging, constantly creep into the purpose of going deep into lithosphere again thereby reach with rubble.
In the concrete scheme, impactor 3 can be for having the hammer of spinfunction, and the force application part 31 of impactor 3 is an impactor head impact hammer body.
In the concrete scheme, the structure of drill bit tube body 1 can be as shown in Figure 6, drill bit tube body 1 comprises inner core 14, urceolus 13, the connection side 11, inner core 14 is connected by junction plate 15 with urceolus 13, inner core 14, the top of urceolus 13 is provided with cylindrical shell top board 17, connection side 11 is located on the cylindrical shell top board 17 of drill bit tube body 1, connection side 11 is used to connect the drilling rod of rotary drilling rig, connection side 11 is provided with bearing pin installing hole 11-1, connection side 11 can be by bearing pin and rotary drilling rig being connected of drilling rod, the side of drill bit tube body 1 is provided with the water/vent hole 16 that is used to discharge internal water or gas, and the side of drill bit tube body 1 also is provided with the positioning and guiding bar 12 that plays guiding and positioning action when impacting the work of tube drilling tool.
In the concrete scheme, impactor 3 is located between the inner core 14 and urceolus 13 of drill bit tube body 1, and impactor 3 is also fixed with bolted mode and inner core 14 or urceolus 13 by impactor fixed block 5.
In the present embodiment, the power source of impactor 3 adopts gas compressing apparatus, this gas compressing apparatus is used for providing gases at high pressure to impactor 3, the gas outlet of described gas compressing apparatus is communicated with the air inlet port of impactor 3 by appendix 4, and impactor 3 can produce high vibration under the effect of gases at high pressure.
In the concrete scheme, as Fig. 4, shown in Figure 5, appendix 4 can comprise annular gas pipe 41 and be connected tracheae 42, annular gas pipe 41 is located at the top of drill bit tube body 1 in the form of a ring, the quantity that connects tracheae 42 is a plurality of, each connects tracheae 42 corresponding to an impactor 3, and each connects tracheae 42 and is located between inner core 14 and the urceolus 13; The air inlet port of annular gas pipe 41 is communicated with the gas outlet of described gas compressing apparatus, and each connects tracheae 42 and all is communicated with annular gas pipe 41, and each gas outlet that connects tracheae 42 is communicated with the air inlet port of corresponding impactor 3 respectively.
In the preferred version, the top of drill bit tube body 1 also is provided with protective cover 6, and protective cover 6 can be connected by the top of bolt with drill bit tube body 1, so that dismounting, protective cover 6 can play the effect of protection appendix 4.
Convenient and swift when the impact tube drilling tool of this structure is connected with the drilling rod of rotary drilling rig, the connection side 11 who impacts the tube drilling tool is with after drilling rod is connected by bearing pin, the appendix joint of appendix 4 is communicated with gas compressing apparatus get final product.Connection side 11 can adopt general standard size and structure, so that and the drilling tool of other types exchange use.
The impact tube drilling tool that the utility model provides has following technique effect.
The impact tube drilling tool of this structure can be realized the broken and cutting of hard rock simultaneously, and drilling efficiency is higher; This energy consumption of impacting the tube drilling tool only is 1/4～1/3 of Large Diameter DTH Hammer hammer energy consumption, and energy consumption is lower, and economic benefit is obvious; The rig that uses this impact tube drilling tool is without just (instead) circulation worker method construction of gaslift, so do not need especially big mud storage pool and slush pump corollary equipment, equipment needed thereby is less and can not pollute surrounding environment.
It is wide that this impact tube drilling tool is suitable for the type scope, be suitable for multiple place, different types of machines, the rotary drilling rig that is particularly useful for the elevator pressurization, the rig working range that is equipped with this impact tube drilling tool is big, it is wide to be suitable for the stratum, does not change original function, the structure of rig, can be suitable for most construction, as dry method, wet method etc., applied range.
This impact tube drill bit be the impact force by drill bit tube body bottom impactor directly act on rock with its destroy, bore simultaneously the tooth cutting the mode of cracked rock finish, can finely utilize the initial pre-applied force of the pressure of the unit head pressure that improves and the generation of conducting oneself with dignity as impactor, because drilling rod is made of more piece, how with friction mode work, can play the effect of buffering step by step, the anti-vibration that is delivered to rig is reduced greatly, improve the operating mode of rig, prolonged the application life of rig.Impactor is cheap with respect to large diameter down-the-hole hammer, and construction cost is lower.
In the foregoing description, impactor adopts the hammer with spinfunction, the utility model is not limited thereto, impactor also can adopt the churn drilling tools with spinfunction, the hammer body of impactor head can be shapes such as cylindric, spherical, wedge-like, and all devices that can make catalase under the driving of power source all can be used as the impactor in the utility model.
In the foregoing description, the gases at high pressure that gas compressing apparatus provides can be air, air, also can be inert gas.
In the foregoing description, the structure of impactor can be for having valve formula structure, valveless formula structure, lateral exhaust structure, center exhaust structure.
In the foregoing description, drill bit tube body can be single layer structure, double-decker, tape guide device structure, non-tape guide device structure etc.
In the foregoing description, the power source of impactor adopts gas compressing apparatus, and the utility model is not limited thereto, and described power source can also also can be motor, internal combustion engine etc. for being used for providing to described impactor the hydraulic pump of hydraulic oil.Impactor also can be the less down-the-hole hammer of diameter.
The utility model also provides a kind of rotary drilling rig, and this rotary drilling rig has above-mentioned impact tube drilling tool, and described impact tube drilling tool is connected with the drilling rod of described rotary drilling rig.Because above-mentioned impact tube drilling tool has above-mentioned technique effect, the rotary drilling rig with this impact tube drilling tool also should have the corresponding techniques effect, no longer is described in detail at this.
The above only is the description of the preferred implementation of utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. one kind is impacted the tube drilling tool, comprises drill bit tube body, bores tooth, it is characterized in that also comprise being no less than one the impactor by drive power source, the force application part of described impactor is located at the bottom of described drill bit tube body.
2. impact according to claim 1 tube drilling tool is characterized in that described impactor is located between the inner core and urceolus of described drill bit tube body, and fixes with bolted mode and described inner core or described urceolus by the impactor fixed block.
3. impact tube drilling tool according to claim 1 and 2 is characterized in that described power source is for being used for providing to described impactor the gas compressing apparatus of gases at high pressure, and the gas outlet of described gas compressing apparatus is communicated with the air inlet port of impactor by appendix.
4. impact according to claim 3 tube drilling tool is characterized in that, described appendix comprises annular gas pipe and be connected tracheae, and described annular gas pipe is located at the top of described drill bit tube body, and described connection tracheae is located between described inner core and the described urceolus; The air inlet port of described annular gas pipe is communicated with the gas outlet of described gas compressing apparatus, and the gas outlet of described annular gas pipe is communicated with the described air inlet port that is connected tracheae, and the gas outlet of described connection tracheae is communicated with the air inlet port of described impactor.
5. impact tube drilling tool according to claim 1 and 2 is characterized in that described power source is for being used for providing to described impactor the hydraulic pump of hydraulic oil.
6. impact tube drilling tool according to claim 1 and 2 is characterized in that described power source is motor or internal combustion engine.
7. impact tube drilling tool according to claim 1 is characterized in that described impactor is the down-the-hole hammer.
8. impact tube drilling tool according to claim 1 is characterized in that described impactor is hammer or the churn drilling tools with spinfunction.
9. impact tube drilling tool according to claim 1 is characterized in that the quantity of described impactor is a plurality of, and the force application part of each described impactor is distributed in the bottom of described drill bit tube body.
10. a rotary drilling rig is characterized in that, this rotary drilling rig has each described impact tube drilling tool of claim 1-9, and described impact tube drilling tool is connected with the drilling rod of described rotary drilling rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205008098U CN201747280U (en) | 2010-08-20 | 2010-08-20 | Impact cylinder drilling tool and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205008098U CN201747280U (en) | 2010-08-20 | 2010-08-20 | Impact cylinder drilling tool and rotary drilling rig |
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| CN201747280U true CN201747280U (en) | 2011-02-16 |
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| CN2010205008098U Expired - Fee Related CN201747280U (en) | 2010-08-20 | 2010-08-20 | Impact cylinder drilling tool and rotary drilling rig |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635309A (en) * | 2012-04-19 | 2012-08-15 | 平阳县鹏伟机械有限责任公司 | Hammer head of percussion drill |
| CN102644274A (en) * | 2012-04-17 | 2012-08-22 | 中铁隧道集团三处有限公司 | Pile-forming construction method for penetrating through existing structure by fender post |
| CN103321571A (en) * | 2013-05-31 | 2013-09-25 | 北京市三一重机有限公司 | Rotary drilling rig |
| CN103321580A (en) * | 2013-07-03 | 2013-09-25 | 龙建路桥股份有限公司 | Foreign matter cutter for bridge pile holes and cutting and drilling method |
| CN103334695A (en) * | 2013-07-22 | 2013-10-02 | 中国化学工程第一岩土工程有限公司 | Rotary excavation combined pneumatic down-the-hole hammer drilling pore forming method and device |
| CN103967419A (en) * | 2014-04-24 | 2014-08-06 | 北京市三一重机有限公司 | Drilling bucket and rotary drilling rig |
| CN104047542A (en) * | 2014-05-30 | 2014-09-17 | 中交第二航务工程局有限公司 | Pipe hammer system of percussion drill for rock-socketed inclined pile and impact construction method of rock-socketed inclined pile |
| CN104695854A (en) * | 2015-02-26 | 2015-06-10 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig capable of realizing positive and negative circulation pneumatic down-hole hammer construction method |
| CN105909169A (en) * | 2016-06-17 | 2016-08-31 | 长沙天和钻具机械有限公司 | Pile-forming rock-entering drilling tool system of rotary drilling rig |
| CN106194030A (en) * | 2016-08-30 | 2016-12-07 | 昆明良工桩机制造有限公司 | A kind of double power head long spire rotation drill machine with casing and the method using its bored pile |
| CN111005675A (en) * | 2019-12-18 | 2020-04-14 | 鲁德昊 | Self-sinking drilling equipment |
| CN111119726A (en) * | 2020-01-19 | 2020-05-08 | 潍坊吉爱姆机械贸易有限公司 | Annular cluster formula down-the-hole hammer |
| CN114645672A (en) * | 2022-05-23 | 2022-06-21 | 烟建集团有限公司 | Rotary drilling rock drilling device |
| CN117536554A (en) * | 2024-01-08 | 2024-02-09 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
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2010
- 2010-08-20 CN CN2010205008098U patent/CN201747280U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644274A (en) * | 2012-04-17 | 2012-08-22 | 中铁隧道集团三处有限公司 | Pile-forming construction method for penetrating through existing structure by fender post |
| CN102635309A (en) * | 2012-04-19 | 2012-08-15 | 平阳县鹏伟机械有限责任公司 | Hammer head of percussion drill |
| CN103321571A (en) * | 2013-05-31 | 2013-09-25 | 北京市三一重机有限公司 | Rotary drilling rig |
| CN103321580A (en) * | 2013-07-03 | 2013-09-25 | 龙建路桥股份有限公司 | Foreign matter cutter for bridge pile holes and cutting and drilling method |
| CN103334695B (en) * | 2013-07-22 | 2016-05-18 | 中国化学工程第一岩土工程有限公司 | Revolve associating pneumatic down-hole hammer drilling and forming hole method and the equipment of digging |
| CN103334695A (en) * | 2013-07-22 | 2013-10-02 | 中国化学工程第一岩土工程有限公司 | Rotary excavation combined pneumatic down-the-hole hammer drilling pore forming method and device |
| CN103967419A (en) * | 2014-04-24 | 2014-08-06 | 北京市三一重机有限公司 | Drilling bucket and rotary drilling rig |
| CN104047542A (en) * | 2014-05-30 | 2014-09-17 | 中交第二航务工程局有限公司 | Pipe hammer system of percussion drill for rock-socketed inclined pile and impact construction method of rock-socketed inclined pile |
| CN104047542B (en) * | 2014-05-30 | 2016-07-06 | 中交第二航务工程局有限公司 | Embedding rock taper pile impacts drilling pipe hammer system and embedding rock taper pile impacts construction method |
| CN104695854A (en) * | 2015-02-26 | 2015-06-10 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig capable of realizing positive and negative circulation pneumatic down-hole hammer construction method |
| CN105909169A (en) * | 2016-06-17 | 2016-08-31 | 长沙天和钻具机械有限公司 | Pile-forming rock-entering drilling tool system of rotary drilling rig |
| CN106194030A (en) * | 2016-08-30 | 2016-12-07 | 昆明良工桩机制造有限公司 | A kind of double power head long spire rotation drill machine with casing and the method using its bored pile |
| CN111005675A (en) * | 2019-12-18 | 2020-04-14 | 鲁德昊 | Self-sinking drilling equipment |
| CN111005675B (en) * | 2019-12-18 | 2021-02-19 | 鲁德昊 | Self-sinking drilling equipment |
| CN111119726A (en) * | 2020-01-19 | 2020-05-08 | 潍坊吉爱姆机械贸易有限公司 | Annular cluster formula down-the-hole hammer |
| CN114645672A (en) * | 2022-05-23 | 2022-06-21 | 烟建集团有限公司 | Rotary drilling rock drilling device |
| CN117536554A (en) * | 2024-01-08 | 2024-02-09 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
| CN117536554B (en) * | 2024-01-08 | 2024-04-05 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
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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 |
Granted publication date: 20110216 Termination date: 20150820 |
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| EXPY | Termination of patent right or utility model |