CN102500731A - Lubricating device of steam-air hammer and use method of device - Google Patents
Lubricating device of steam-air hammer and use method of device Download PDFInfo
- Publication number
- CN102500731A CN102500731A CN2011103242831A CN201110324283A CN102500731A CN 102500731 A CN102500731 A CN 102500731A CN 2011103242831 A CN2011103242831 A CN 2011103242831A CN 201110324283 A CN201110324283 A CN 201110324283A CN 102500731 A CN102500731 A CN 102500731A
- Authority
- CN
- China
- Prior art keywords
- steam
- valve
- oil
- pneumatic hammer
- hammer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a lubricating device of a steam-air hammer and a use method of the device. The lubricating device comprises an oil pool, a second valve, an oil storage chamber, a first valve and an oil filling bucket, wherein the oil pool is connected with a guide groove through a through hole; and the second valve, the oil storage chamber, the first valve and the oil filling bucket are sequentially connected with an air inlet pipeline of the steam-air hammer through an oil filling port. The use method of the lubricating device of the steam-air hammer comprises the following steps of: storing lubricating oil in the oil filling bucket; opening the first valve for feeding the lubricating oil into the oil storage chamber; and closing the first valve and opening the second valve for feeding the lubricating oil into the air inlet pipeline of the steam-air hammer through the oil filling port. Under the action of compressed air or steam, the lubricating oil is atomized and uniformly attached to the surface of parts in a cylinder, is converged into lubricating oil in the form of large liquid drops, enters the oil pool, and is conveyed to the guide groove through the through hole for lubricating a guide rail. Due to the adoption of the device and the use method provided by the invention, the parts in the steam-air hammer can be lubricated uniformly, and the service life of each part is prolonged.
Description
Technical field
The present invention relates to the forging equipment technical field, particularly the method for using of a kind of lubricating arrangement of steam-pneumatic hammer and this device.
Background technology
Steam-pneumatic hammer is a kind of of flat-die forging machine, utilizes steam or compressed air to promote piston, and moves up and down through piston rod drive hammer body.Steam-pneumatic hammer flexible operation is widely used in the production of middle-size and small-size forging.Good lubricating can guarantee steam-pneumatic hammer operate as normal, and prolongs its service life, can cause cylinder wall, valve pocket, packing cover, hammer stem, guide rail etc. that heavy wear partly takes place during insufficient lubrication.Steam-air flat-die hammer generally adopts the oil pump automatic lubricating system to be lubricated.
See accompanying drawing 1, the oil pump automatic lubricating system mainly comprises: rocking bar 101, oil pump 102, connecting rod 103, guiding valve pull bar 104, divide oil distributing valve 105 and is connected oil pump 102, divides the copper petroleum pipeline of oil distributing valve 105 and each fuel feeding point.Oil pump 102 is fixed on one's body steam-pneumatic hammer hammer, wherein fills with cylinder oil; Guiding valve pull bar 104 links to each other in connecting rod 103 and the actuating linkage system, can move up and down with the motion of guiding valve pull bar 104, and drives rocking bar 101 swings.During system works; Guiding valve pull bar 104 drives oil pump 102 through connecting rod 103 and rocking bar 101; Lubricating oil in the oil pump 102 is transported to branch oil distributing valve 105 through the copper petroleum pipeline, injects air inlet pipe 106, valve chamber 107, cylinder 108, sealed letter 109 (being distributed on the hammer stem through packing again) and left and right rail 110 respectively through the copper petroleum pipeline of different parts again and carries out self-lubricate.The lubricated of this mode is through gear oil pump, leans on the external force in the operating process to turn round continuously, through separator lubricating oil mentioned each oil site.
But; Adopt the oil pump automatic lubricating system,, cause the charge oil pressure difference very big because oil pump is different in size to the pipeline road of each oil site; The packing insufficient lubrication; Increase the frictional force of hammer stem, caused hammer body to pull phenomenons such as spigot surface, the trapezoidal spigot surface plucking of hammer body gathering sill at the volley, finally made component lifes such as packing, hammer stem, cylinder and guide rail shorten.Secondly, to each oil site, tie point is more from oil pump, is easy to generate seepage, causes the not enough and oil pressure reduction of fuel delivery, and lubrication circumstances is further worsened; Oil pump is difficult to fixing on one's body at hammer, fastness is poor, often comes off.
Summary of the invention
The method for using that the purpose of this invention is to provide a kind of lubricating arrangement and this device of steam-pneumatic hammer; Charge oil pressure to each parts of steam-pneumatic hammer is close; Can be evenly lubricated to each parts, prolong the life-span of parts such as packing, hammer stem, cylinder and guide rail.
For solving the problems of the technologies described above, the present invention provides a kind of method for using of lubricating arrangement and this device of steam-pneumatic hammer.
A kind of lubricating arrangement of steam-pneumatic hammer comprises: the oiling drum that links to each other with oil filler on being arranged on steam-pneumatic hammer admission line through pipe;
The oiling drum that links to each other with oil filler on the admission line that is arranged on said steam-pneumatic hammer through pipe;
Be arranged on the pipe first valve near oiling drum;
Be arranged on the oil sump on the hammer body of steam-pneumatic hammer, oil sump is provided with through hole, and through hole is communicated with the gathering sill on oil sump and the steam-pneumatic hammer hammer body.
A kind of method for using of lubricating arrangement of steam-pneumatic hammer may further comprise the steps:
11) intake valve on steam off-pneumatic hammer admission line;
12) open first valve, make lubricating oil flow into the admission line of steam-pneumatic hammer from oiling drum;
13) close first valve, open intake valve.
A kind of lubricating arrangement of steam-pneumatic hammer comprises: the oiling drum that links to each other with oil filler on being arranged on steam-pneumatic hammer admission line through pipe;
The oiling drum that links to each other with oil filler on the admission line that is arranged on said steam-pneumatic hammer through pipe;
Be arranged on the pipe first valve near oiling drum;
Be arranged on the oil sump on the hammer body of steam-pneumatic hammer, oil sump is provided with through hole, and through hole is communicated with the gathering sill on oil sump and the steam-pneumatic hammer hammer body.
Preferably, first valve is to also being provided with the trapped fuel chamber and second valve between the oil filler.
Preferably, the trapped fuel chamber is an oil storage tank.
Preferably, the trapped fuel chamber is the pipeline that is connected of one section first valve and second valve.
Preferably, oil sump is surrounded by the groove at steam-pneumatic hammer hammer body top and the oil sump side plate that is welded on the groove two ends.
Preferably, oil sump by the bottom positioning convex form, the draw-off tray at top and the through hole at draw-off tray edge form.
Preferably, oil sump is at the collection chamber that steam-pneumatic hammer hammer body top processes, and collection chamber is connected with gathering sill on steam-pneumatic hammer hammer body through through hole.
A kind of method for using of lubricating arrangement of steam-pneumatic hammer may further comprise the steps:
21) intake valve on steam off-pneumatic hammer admission line;
22) close second valve, open first valve, make lubricating oil flow into the trapped fuel chamber from oiling drum;
23) close first valve, open second valve, open intake valve.
The lubricating arrangement of a kind of steam-pneumatic hammer provided by the present invention and the method for using of this device.Lubricating oil is stored in the oiling drum; Close the intake valve and second valve, open first valve, make lubricating oil get into the trapped fuel chamber; Close first valve, open second valve, make lubricating oil get into the admission line of steam-pneumatic hammer through oil filler.Utilize the compressed air or the steam that drive steam-pneumatic hammer to bring lubricating oil into cylinder, lubricating oil can atomize in high pressure draught, and vaporific lubricating oil is evenly attached to cylinder inner wall, and realization is evenly lubricated to cylinder, packing and hammer stem; Lubricating oil in the cylinder converges to packing place, bottom, few parts of lubricating oil through the slit between packing and the hammer stem along hammer stem in dropping to oil sump, and via through holes flows to the both sides gathering sill, thereby realized lubricated to guide rail.
Oil pump automatic lubricating system than available technology adopting; Adopt apparatus and method provided by the invention; Can evenly lubricate each part in steam-pneumatic hammer, lubricant effect preferably can be arranged, avoid the part insufficient lubrication that causes because of charge oil pressure is inhomogeneous.Secondly, lubricating arrangement and steam-pneumatic hammer have only a tie point, than a large amount of tie point of oil pump automatic lubricating system, can effectively reduce the seepage of lubricating oil; Each parts of lubricating arrangement are fixedly linked, and do not need movable parts such as connecting rod, rocking bar or oil pump, and are solid and reliable.
Description of drawings
Fig. 1 is the structural representation of steam in the prior art-pneumatic hammer lubricating arrangement;
The structural representation of a kind of steam-pneumatic hammer lubricating arrangement that Fig. 2 provides for the embodiment of institute one of the present invention;
The structural representation of the hammer body part that Fig. 3 provides for the embodiment of the invention one;
The vertical view of the hammer body part that Fig. 4 provides for the embodiment of the invention one;
A kind of structural representation that has the steam-pneumatic hammer lubricating arrangement of trapped fuel chamber that Fig. 5 provides for the embodiment of the invention two;
The front view of the oil sump that Fig. 6 provides for the embodiment of the invention three;
The vertical view of the oil sump that Fig. 7 provides for the embodiment of the invention three;
The structural representation of the hammer body part that Fig. 8 provides for the embodiment of the invention four;
The vertical view of the hammer body part that Fig. 9 provides for the embodiment of the invention four;
A kind of structural representation that adopts oil storage tank as the steam-air lubrication plant of trapped fuel chamber that Figure 10 provides for the bright embodiment five of this law.
The specific embodiment
Core of the present invention provides a kind of method for using of lubricating arrangement and this device of steam-pneumatic hammer; Charge oil pressure to each parts of steam-pneumatic hammer is close; Can be evenly lubricated to each parts, prolong the life-span of parts such as packing, hammer stem, cylinder and guide rail.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 2, a kind of lubricating arrangement of steam-pneumatic hammer comprises first valve 203, oiling drum 204 and the pipe that is connected each parts.
Be arranged on the oil sump 207 on steam-pneumatic hammer hammer body 209, oil sump 207 is connected with gathering sill 208 on steam-pneumatic hammer hammer body 209 through through hole 206.
Like Fig. 3 and shown in Figure 4, oil sump 207 is surrounded by the groove at steam-pneumatic hammer hammer body 209 tops and the oil sump side plate 210 at welding and groove two ends; Oil sump 207 bottoms are provided with through hole 206, and through hole 206 is communicated with oil sump 207 and gathering sill 208, and through hole 206 positions are corresponding one by one with gathering sill 208 positions.
The method for using of a kind of steam-pneumatic hammer lubricating arrangement is applied to embodiment one described lubricating arrangement, may further comprise the steps:
11) intake valve on steam off-pneumatic hammer admission line;
12) open first valve 203, make lubricating oil flow into oil filler 201 from oiling drum 204;
13) close first valve 203, open intake valve.
The lubricating arrangement and the method for using thereof of a kind of steam-pneumatic hammer that the embodiment of the invention one is provided; Utilize the compressed air or the steam that drive steam-pneumatic hammer to bring lubricating oil into cylinder; Lubricating oil can atomize in high pressure draught; Vaporific lubricating oil is realized evenly lubricating cylinder, packing and hammer stem evenly attached to cylinder inner wall; Lubricating oil in the cylinder converges to packing place, bottom, few parts of lubricating oil through the slit between packing and the hammer stem along hammer stem in dropping to oil sump, and via through holes flows to the both sides gathering sill, thereby realized lubricated to guide rail.
Embodiment two
In order to increase the reliability of system, the lubricating arrangement of steam-pneumatic hammer also comprises the trapped fuel chamber and second valve 205 on the basis of embodiment one.
As shown in Figure 5, the trapped fuel chamber and second valve 205 are set in sequence between first valve 203 and the oil filler 201, and the trapped fuel chamber is between first valve 203 and second valve 205.
Embodiment two has increased the trapped fuel chamber and second valve in order to increase the reliability of system on the basis of embodiment one, identical among the structure of other parts and the embodiment one.
The method for using of a kind of steam-pneumatic hammer lubricating arrangement is applied to embodiment two described lubricating arrangements, may further comprise the steps:
21) intake valve on steam off-pneumatic hammer admission line;
22) close second valve, open first valve, make lubricating oil flow into the trapped fuel chamber from oiling drum;
23) close first valve, open second valve, open intake valve.
Set up the trapped fuel chamber and second valve among the embodiment two; In operating process; Open first valve earlier and close second valve; Open and close first valve and open second valve is isolated the admission line of oiling drum and steam-pneumatic hammer so again, can prevent that the gases at high pressure in the pipeline from being overflowed by oiling drum.Secondly, operating personnel can directly add the amount of lubricating oil through the control of trapped fuel chamber, make the control of device easier.
Embodiment three
Oil sump can also be an independent part.
Like Fig. 6 and shown in Figure 7; The first half of oil sump 207` is the draw-off tray 2072 that the edge has the gathering sill 2071 that can be complementary with guide rail; Draw-off tray 2072 central authorities are provided with hammer stem through hole 2073, and draw-off tray 2072 internal edges bottoms is provided with and gathering sill 2071 through hole 2075 one to one; The latter half of oil sump 207 is the positioning convex 2074 that is complementary with hammer body 209 end face grooves.
Because the hammer body volume is bigger, constant in processing, and oil sump is designed to independent part, makes easy.
With respect to embodiments of the invention one, three of embodiment improve oil sump, and the method for using of a kind of steam-pneumatic hammer lubricating arrangement of its method of operating in embodiment two is identical.
Embodiment four
The end face of considering the part hammer body possibly not have groove, and the embodiment of the invention three provides a kind of lubricating arrangement that directly processes oil sump at the hammer body end face.
Like Fig. 8 and shown in Figure 9, directly process a oil sump 501 at the end face of hammer body 209 with certain volume, oil sump 501 bottoms are provided with through hole 502, and through hole 502 is communicated with oil sumps 501 gathering sills 208, and through hole 502 positions are corresponding one by one with gathering sill 208 positions.
With respect to embodiments of the invention two, four of embodiment improve oil sump, and the method for using of a kind of steam-pneumatic hammer lubricating arrangement of its method of operating in embodiment two is identical.
Embodiment five
The amount of considering the lubricating oil that part steam-pneumatic hammer uses is bigger, if use one section than long tube as the trapped fuel chamber, comparatively too fat to move on the structure, it is the lubricating arrangement of trapped fuel chamber that the embodiment of the invention five provides a kind of oil storage tank that adopts.
Shown in figure 10, oil storage tank 606 is arranged between first valve 203 and second valve 205.
During use, open first valve 203 earlier, it is temporary to make lubricating oil get into oil storage tank 606 from oiling drum 204; Close first valve 203, open second valve 205, the lubricating oil in the oil storage tank 606 utilizes compressed air or steam to bring in the cylinder through the admission line 202 of oil filler 201 entering steam-pneumatic hammers.
Adopt oil storage tank, can make the structure of lubricating arrangement compact more.
Five of the embodiment of the invention are improved to the trapped fuel chambers in the lubricating arrangement, and are identical among remainder and the embodiment two.
More than the lubricating arrangement and the method for using thereof of a kind of steam-pneumatic hammer provided by the present invention have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. the lubricating arrangement of a steam-pneumatic hammer is characterized in that, comprising:
The oiling drum that links to each other with oil filler on the admission line that is arranged on said steam-pneumatic hammer through pipe;
Be arranged on first valve on the said pipe;
Be arranged on the oil sump on the hammer body of said steam-pneumatic hammer, said oil sump is provided with through hole, and said through hole is communicated with the gathering sill on said oil sump and the said steam-pneumatic hammer hammer body.
2. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 1 is characterized in that, by said first valve to also being sequentially set with the trapped fuel chamber and second valve the said oil filler.
3. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 2 is characterized in that, said trapped fuel chamber is an oil storage tank.
4. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 2 is characterized in that, said trapped fuel chamber is the pipeline that is connected of one section said first valve and said second valve.
5. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 2 is characterized in that, said oil sump is surrounded by the groove at said steam-pneumatic hammer hammer body top and the oil sump side plate that is welded on said groove two ends.
6. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 2 is characterized in that, said oil sump comprises bottom positioning convex, the draw-off tray at top and the through hole at draw-off tray edge.
7. the lubricating arrangement of a kind of steam-pneumatic hammer according to claim 2; It is characterized in that; Said oil sump is at the collection chamber that said steam-pneumatic hammer hammer body top processes, and said collection chamber is connected with gathering sill on said steam-pneumatic hammer hammer body through through hole.
8. the method for using of the lubricating arrangement of a steam-pneumatic hammer is applied to the described lubricating arrangement of claim 1, it is characterized in that, may further comprise the steps:
11) intake valve on steam off-pneumatic hammer admission line;
12) open first valve, make lubricating oil flow into the admission line of steam-pneumatic hammer from oiling drum;
13) close first valve, open intake valve.
9. the method for using of the lubricating arrangement of a steam-pneumatic hammer is applied to each described lubricating arrangement among the claim 2-7, it is characterized in that, may further comprise the steps:
21) intake valve on steam off-pneumatic hammer admission line;
22) close second valve, open first valve, make lubricating oil flow into the trapped fuel chamber from oiling drum;
23) close first valve, open second valve, open intake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324283.1A CN102500731B (en) | 2011-10-21 | 2011-10-21 | Lubricating device of steam-air hammer and use method of device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324283.1A CN102500731B (en) | 2011-10-21 | 2011-10-21 | Lubricating device of steam-air hammer and use method of device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102500731A true CN102500731A (en) | 2012-06-20 |
| CN102500731B CN102500731B (en) | 2014-07-09 |
Family
ID=46212897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110324283.1A Expired - Fee Related CN102500731B (en) | 2011-10-21 | 2011-10-21 | Lubricating device of steam-air hammer and use method of device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102500731B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945185A (en) * | 2016-05-31 | 2016-09-21 | 德清恒富机械有限公司 | Forging and hammering module of high-lubricating-degree mold forging device |
| CN106925702A (en) * | 2017-04-18 | 2017-07-07 | 苏州蓝王机床工具科技有限公司 | A kind of pneumatic hammer structure |
| CN110369659A (en) * | 2019-06-26 | 2019-10-25 | 泉州市五加一电子商务有限公司 | A kind of bearing forging equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131164A (en) * | 1977-11-23 | 1978-12-26 | Chambersburg Engineering Company | Adaptive valve control system for an impact device |
| CN200982511Y (en) * | 2006-11-30 | 2007-11-28 | 黄旭照 | Oil feeding apparatus for lubrication |
| CN101109409A (en) * | 2007-08-10 | 2008-01-23 | 广东工业大学 | Static pressure, static pressure bearing used for high speed precision machine tool principal axis |
| CN201333489Y (en) * | 2009-01-12 | 2009-10-28 | 张国庆 | High speed pneumatic forging hammer device |
| CN202270899U (en) * | 2011-10-21 | 2012-06-13 | 莱芜钢铁集团有限公司 | Lubricating device for steam-air hammer |
-
2011
- 2011-10-21 CN CN201110324283.1A patent/CN102500731B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4131164A (en) * | 1977-11-23 | 1978-12-26 | Chambersburg Engineering Company | Adaptive valve control system for an impact device |
| CN200982511Y (en) * | 2006-11-30 | 2007-11-28 | 黄旭照 | Oil feeding apparatus for lubrication |
| CN101109409A (en) * | 2007-08-10 | 2008-01-23 | 广东工业大学 | Static pressure, static pressure bearing used for high speed precision machine tool principal axis |
| CN201333489Y (en) * | 2009-01-12 | 2009-10-28 | 张国庆 | High speed pneumatic forging hammer device |
| CN202270899U (en) * | 2011-10-21 | 2012-06-13 | 莱芜钢铁集团有限公司 | Lubricating device for steam-air hammer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945185A (en) * | 2016-05-31 | 2016-09-21 | 德清恒富机械有限公司 | Forging and hammering module of high-lubricating-degree mold forging device |
| CN105945185B (en) * | 2016-05-31 | 2018-02-09 | 德清恒富机械有限公司 | The forging hammer component of high lubricity forging die device |
| CN106925702A (en) * | 2017-04-18 | 2017-07-07 | 苏州蓝王机床工具科技有限公司 | A kind of pneumatic hammer structure |
| CN110369659A (en) * | 2019-06-26 | 2019-10-25 | 泉州市五加一电子商务有限公司 | A kind of bearing forging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102500731B (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102112273B (en) | Impact device having impact mechanism lubricating device | |
| CN102500731B (en) | Lubricating device of steam-air hammer and use method of device | |
| CN106992060B (en) | A kind of transformer or capacitor vacuum oil system | |
| CN101266016B (en) | Automatic fuelling device | |
| CN202270899U (en) | Lubricating device for steam-air hammer | |
| CN102758602A (en) | Concentric tube hydraulic piston drainage and extraction device and method for coal-bed gas well | |
| CN103133842A (en) | Oil-injection mechanism for paver lubricating system | |
| CN107289273A (en) | A kind of automatic gear-box is changed oil mechanism | |
| CN106379372A (en) | Intelligent pneumatic solid rim lubricating system and lubricating method | |
| CN102889463A (en) | Multi-line multi-point parallel automatic lubricating pump with single plunger | |
| CN202510692U (en) | Automatic circulation oiling device of lubricating system for mining transmission equipment | |
| CN105387029B (en) | A kind of oil-filtering apparatus | |
| CN102392929A (en) | Simple lubricating device of middle and tail bearings of walking-beam pumping unit | |
| CN201892020U (en) | Oil injector | |
| CN105041406A (en) | Independent hydraulic oil supply system of marine low-speed diesel engine | |
| CN109264049A (en) | Edible oil filling apparatus | |
| CN205350796U (en) | Lubricating grease device of maring | |
| CN207048946U (en) | Reciprocating Natural Gas Compressor automatic oiling device | |
| CN201420943Y (en) | Quantitative oiling device | |
| CN203146280U (en) | Automatic compensation system of lubricating oil of compressor | |
| CN202252745U (en) | Easy and simple lubricating device for middle bearing and tail bearing of beam-pumping unit | |
| CN203384621U (en) | Automatic oiling device for casting machine chains | |
| CN105822887A (en) | Robot for dripping lubricating oil | |
| CN202215914U (en) | Automatic lubricating device for steel plate shearing machine | |
| CN202250712U (en) | Pre-lubricating type compressor lubricant system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140709 Termination date: 20171021 |