CN204267398U - A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper - Google Patents
A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper Download PDFInfo
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- CN204267398U CN204267398U CN201420646137.XU CN201420646137U CN204267398U CN 204267398 U CN204267398 U CN 204267398U CN 201420646137 U CN201420646137 U CN 201420646137U CN 204267398 U CN204267398 U CN 204267398U
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- scraper
- plate
- scraper plate
- control valve
- flow pressure
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Abstract
Road containing two_stage flow pressure-gradient control valve group widens machine scraper, it comprises motor, two_stage flow pressure-gradient control valve group, lifting column, inner side baffle, fixed base, scraper plate and outer lateral retaining plate, lifting column inserts in fixed base, inner side baffle is fixed on fixed base side, is provided with the limit assembly for preventing lifting column from rotating along its center axle direction between lifting column and sleeve pipe; Inner side baffle side is provided with connecting plate, and connecting plate is provided with rotating shaft, and rotating shaft is provided with fixed plate, and fixed plate can rotate relative to spindle central axle; Scraper plate one end and fixed plate hinged, the scraper plate the other end and outside panel hinge; Motor drives scraper plate to rotate.The road containing two_stage flow pressure-gradient control valve group that the utility model provides widens machine scraper, and its structure is simple, and cost is low, causes the problem of inner side baffle movement when avoiding turning strickle.
Description
Technical field
The utility model relates to a kind of road containing two_stage flow pressure-gradient control valve group and widens machine scraper, is mainly used in widening of road.
Background technique
The inner side baffle that the existing road containing two_stage flow pressure-gradient control valve group widens machine scraper generally adopts and is socketed with rotating shaft, rotating shaft is also socketed with scraper baffle plate simultaneously, when carrying out road and widening, first scraper baffle plate is needed to rotate to working position, while rotary scraping baffle plate, rotating shaft also can rotate thereupon, causes the inner side baffle be socketed in rotating shaft to rotate like this; The width widened due to road coordinates outer lateral retaining plate to limit by inner side baffle, inner side baffle needs to readjust the position of inner side baffle after rotating, if do not carry out position restriction to the scraper baffle plate be rotated in place during adjustment, scraper baffle plate can move again thereupon, very inconvenient.
In order to solve the problem, technician adopts increases at vehicle body side the position that limiting board limits inner side baffle, inner side baffle position is fixed relative to car body, but aforesaid way adds car load component, causes complete vehicle structure complicated and improves cost.
Meanwhile, it is very complicated that the existing road containing two_stage flow pressure-gradient control valve group widens the regulating device structure that machine scraper adopts for the position adjustment of scraper baffle plate, and cost is high, and reliability is low.
Summary of the invention
In order to solve Problems existing in background technique, the utility model provides a kind of road containing two_stage flow pressure-gradient control valve group to widen machine scraper, and this apparatus structure is simple, and cost is low, causes the problem of inner side baffle movement when avoiding turning strickle.
Concrete technical solution of the present utility model is as follows:
A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper, it is characterized in that: the described road containing two_stage flow pressure-gradient control valve group is widened machine scraper and comprised motor, two_stage flow pressure-gradient control valve group, lifting column, inner side baffle, fixed base, scraper plate and outer lateral retaining plate, described lifting column inserts in fixed base, described inner side baffle is fixed on fixed base side, is provided with the limit assembly for preventing lifting column from rotating along its center axle direction between lifting column and sleeve pipe; Described inner side baffle side is provided with connecting plate, connecting plate is provided with rotating shaft, rotating shaft is provided with fixed plate, and fixed plate can rotate relative to spindle central axle; Described scraper plate one end and fixed plate hinged, the scraper plate the other end and outside panel hinge; Described motor drives scraper plate to rotate; Described two_stage flow pressure-gradient control valve group comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and selector valve; Described oil cylinder accesses the first priority traffic valve by pressure oil pipeline; Described first priority traffic valve accesses the second priority traffic valve; Described first priority traffic valve accesses oil cylinder by return line; Described second priority traffic valve access selector valve; Described selector valve accesses oil cylinder by return line; Described selector valve is connected with motor.
Above-mentioned scraper also comprises for adjusting the scraper plate inclination angle oil cylinder of scraper plate relative to ground-angle, scraper plate inclination angle oil cylinder ear seat and lifting column top or hinged near tip position place, piston rod end and scraper plate hinged away from side, ground.
Above-mentioned scraper also comprises for adjusting the blade height oil cylinder of scraper plate relative to ground level, blade height oil cylinder ear seat and fixed base hinged, piston rod end and lifting column side hinged, piston rod central shaft is parallel with lifting column central shaft.
Above-mentioned scraper plate comprises the first connection scraper plate, second and connects scraper plate and expansion scraper blade, and first to connect scraper plate one end hinged with fixed base, and the other end is connected scraper plate one end with second and is fixedly connected with, and the second connection scraper plate the other end is fixedly connected with expansion scraper blade; Described expansion scraper blade comprises scraper plate fixed plate and scraper plate expansion plate, and scraper plate expansion plate can move relative to scraper plate fixed plate.
Above-mentioned scraper plate expansion plate can move relative to scraper plate fixed plate and realize particular by scraper plate telescopic oil cylinder, described telescopic oil cylinder ear seat is fixed on and is connected scraper plate side with scraper plate fixed plate near second, and piston rod is fixed on scraper plate expansion plate and connects scraper plate side away from second.
Above-mentioned scraper plate is away from rotating shaft place and widen machine frame side near road and be provided with push rod connecting base for connecting adjustable push rod, and opposite side is provided with the pull bar connecting base for connecting adjustable drawbar; Scraper rotary is gone to working position place and is fixed by the relative position between scraper plate and frame by adjustable push rod, is fixed by the relative position between scraper plate and outer lateral retaining plate by adjustable push rod.
Above-mentioned scraper plate is provided with for connecting the bundle system seat that bundle is pull bar away from the top of rotating shaft place, and bundle is that scraper plate bundle ties up in frame when scraping plate closing by pull bar.
Above-mentioned two_stage flow pressure-gradient control valve group also comprises the first relief valve, and described pressure oil pipeline is by the first relief valve access return line; Described two_stage flow pressure-gradient control valve group also comprises the second relief valve, and described second priority traffic valve is successively by the second relief valve and the first relief valve access return line.
Above-mentioned first priority traffic valve comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of described first priority traffic valve accesses the second priority traffic valve; First secondary hydraulic fluid port of described first priority traffic valve accesses oil cylinder by return line.
Above-mentioned second priority traffic valve comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access selector valve of described second priority traffic valve; Second main hydraulic fluid port of described second priority traffic valve accesses the first relief valve by the second relief valve; Described selector valve is 34 logical selector valves.
Advantage of the present utility model is as follows:
Should widen machine scraper structure simply by road containing two_stage flow pressure-gradient control valve group, during turning strickle, inner side baffle can not move thereupon, and position is relatively fixing, and means of fixation is simple, and cost is low.Meanwhile, should widen that machine scraper is scalable, adjustable height, angle between adjustable and ground containing road of two_stage flow pressure-gradient control valve group, each regulating mechanism structure is simple, reliability is high.3rd, the two_stage flow pressure-gradient control valve group that the utility model adopts, by the simple annexation between the first priority traffic valve, the second priority traffic valve and selector valve, form flow pressure-gradient control valve group, be connected by inside tank between valve with valve, eliminate pipeline to each other to connect, simplify operation, installation is saved time and attractive in appearance; And be not easy to occur leaking, safe and reliable.The utility model can make motor rotary speed and turn to adjustable; motor is stopped when not using motor; hydraulic oil is made directly to get back to fuel tank; reduce system power dissipation; relief valve protection motor can not transship; the pipeline simultaneously simplifying oil circuit connects, easy to use, simplifies the difficulty of regular maintenance and accident subsequent treatment.
Accompanying drawing explanation
Fig. 1 is the utility model plan view;
Fig. 2 is the utility model rear view;
Fig. 3 is the utility model open mode plan view;
Fig. 4 is the structural representation of the two_stage flow pressure-gradient control valve group that the utility model adopts;
Accompanying drawing is detailed as follows:
1-first relief valve; 2-first priority traffic valve; 3-second priority traffic valve; 4-selector valve; 5-second relief valve; 6-motor; 7-lifting column; 8-fixed base; 9-blade height oil cylinder; 10-scraper plate inclination angle oil cylinder; 11-bundle is pull bar; 12-first connects scraper plate; 13-second connects scraper plate; 14-expansion scraper blade; 15-fixed plate; 16-rotating shaft; 17-adjustable push rod; 18-push rod connecting base; 19-adjustable drawbar; 20-inner side baffle; The outer lateral retaining plate of 21-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail, as shown in Figure 1, Figure 2, Figure 3 shows:
The road that should contain two_stage flow pressure-gradient control valve group is widened machine scraper and is comprised lifting column 7, inner side baffle 20, fixed base 8, scraper plate and outer lateral retaining plate 21, lifting column 7 inserts in fixed base 8, inner side baffle 20 is fixed on fixed base 8 side, owing to adopting, inner side baffle 20 is directly fixed on fixed base 8, and fixed base 8 can not rotate, so inner side baffle 20 position is fixed relative to frame all the time, avoid problems of the prior art.
And after inner side baffle 20 is arranged on fixed base 8, miscellaneous part mode of structure all changes, perform an action to optimize, simplify the internal structure of an organization and retain original function, Gu miscellaneous part is arranged as follows: be provided with the limit assembly for preventing lifting column 7 from rotating along its center axle direction between lifting column 7 and sleeve pipe, limit assembly can adopt the mode of stop screw, prevent it from rotating by loading two screws arranged in opposite directions, simultaneously, because lifting column 77 may carry out lifting action, therefore should note when arranging screw locating reserved chute at lifting column 7 and screw adaptation, the length of chute at least should equal the adjustable height of lifting column 7.
Inner side baffle 20 side is provided with connecting plate, connecting plate is provided with rotating shaft 16, rotating shaft 16 is provided with fixed plate 15, and fixed plate 15 can rotate relative to rotating shaft 16 central shaft; Scraper plate one end and fixed plate 15 hinged, the scraper plate the other end and outer lateral retaining plate 21 hinged; Owing to have employed this Placement hinged between scraper plate and fixed plate 15, therefore scraper plate can rotate relative to fixed plate 15, to adjust scraper plate relative to the angle between ground; The mechanism driving scraper plate to rotate selects scraper plate inclination angle oil cylinder 10, scraper plate inclination angle oil cylinder ear seat and lifting column 7 top or close tip position place hinged, piston rod end and scraper plate hinged away from side, ground.
In order to increase function of regulating height thereof, add for adjusting the blade height oil cylinder 9 of scraper plate relative to ground level, blade height oil cylinder ear seat and fixed base 8 hinged, piston rod end and lifting column 7 side hinged, piston rod central shaft is parallel with lifting column 7 central shaft, adjusts the height of scraper plate relative to ground by adjustment piston rod extending amount.
Owing to widening width difference, the length of scraper plate should be adjustable, this case selects following mode of structure to adjust: scraper plate comprises the first connection scraper plate 12, second and connects scraper plate 13 and expansion scraper blade 14, first connect scraper plate one end and fixed base 8 hinged, the other end is connected scraper plate one end with second and is fixedly connected with, and second connects the scraper plate the other end is fixedly connected with expansion scraper blade 14; Expansion scraper blade 14 comprises scraper plate fixed plate and scraper plate expansion plate, and scraper plate expansion plate can move relative to scraper plate fixed plate.Scraper plate expansion plate can move relative to scraper plate fixed plate and realize particular by scraper plate telescopic oil cylinder, and telescopic oil cylinder ear seat is fixed on and is connected scraper plate side with scraper plate fixed plate near second, and piston rod is fixed on scraper plate expansion plate and connects scraper plate side away from second.
Scraper plate is selected when being adjusted to work and is fixed the position of scraper plate, also should fix outer lateral retaining plate 21 relative to the angle between scraper plate simultaneously, this case selects following mode of structure to fix to realize position: scraper plate is away from rotating shaft 16 place and widen machine frame side near road and be provided with push rod connecting base 18 for connecting adjustable push rod 17, and opposite side is provided with the pull bar connecting base for connecting adjustable drawbar 19; Scraper rotary is gone to working position place and is fixed by the relative position between scraper plate and frame by adjustable push rod 17, is fixed by the relative position between scraper plate and outer lateral retaining plate 21 by adjustable push rod 17; Adjustable drawbar 19 and adjustable push rod 17 are tunable component, therefore adapt to various different occasion.
Scraper plate all should near car body under non-working condition, and limit it relative to body movement, be fixed on car body, this case selects following mode of structure to fix to realize position: scraper plate is provided with for connecting the bundle system seat that bundle is pull bar 11 away from the top at rotating shaft 16 place, and bundle is that scraper plate bundle ties up in frame when scraping plate closing by pull bar 11.
See Fig. 4, the two_stage flow pressure-gradient control valve group that the utility model have employed comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and selector valve; Oil cylinder accesses the first priority traffic valve by pressure oil pipeline; First priority traffic valve accesses the second priority traffic valve; First priority traffic valve accesses oil cylinder by return line; Second priority traffic valve access selector valve; Selector valve accesses oil cylinder by return line.
The utility model in use, first oily by pressure oil pipeline pumping pressure by oil cylinder, pressure oil, by being directly delivered to the second priority traffic valve 3 after the first priority traffic valve 2, carrying out adjusting agent by the second priority traffic valve 3 by the rotating speed of selector valve 4 pairs of motors 6 and direction and controls; Meanwhile, hydraulic control can be carried out to other motors 6 by the second priority traffic valve 3.
Two_stage flow pressure-gradient control valve group also comprises the first relief valve 1, and pressure oil pipeline accesses return line by the first relief valve 1.When the overpressure of the pressure oil in pressure oil pipeline, directly can be delivered to return line by the first relief valve 1 provided by the utility model, finally get back in oil cylinder.The appearance of the first relief valve 1, avoids the overload of priority traffic valve, and then protects the use safety of motor 6.
Two_stage flow pressure-gradient control valve group also comprises the second relief valve 5, second priority traffic valve 3 and accesses return line by the second relief valve 5 and the first relief valve 1 successively.
First priority traffic valve 2 comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of the first priority traffic valve 2 accesses the second priority traffic valve 3; First secondary hydraulic fluid port of the first priority traffic valve 2 accesses oil cylinder by return line.When overpressure in the first priority traffic valve 2, directly can be delivered to return line by the secondary hydraulic fluid port of the first pressure-gradient control valve, finally get back in oil cylinder.
Second priority traffic valve 3 comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access selector valve of the second priority traffic valve 3; Second main hydraulic fluid port of the second priority traffic valve accesses the first relief valve by the second relief valve.When overpressure in the second priority traffic valve 3, directly pressure oil can be delivered to return line by the second relief valve 5, finally get back in oil cylinder.
The selector valve 4 that the utility model adopts is any one 34 logical selector valves 4.
Motor and secondary oil circuit P2 flow control valve group, this valve group effect is: when the engine is idling, and be not now the engine speed of machine construction, P1 flow is less, but will ensure that machine can realize the P2 flow of fundamental function, sets up priority traffic valve 2.When motor is working speed, P2 is constant, and now P1 is comparatively large, and adjustment priority traffic valve 1 adjusts the rotating speed of motor, and selector valve adjusts positive and negative rotation of motor and quits work.Set up relief valve 2 20bar lower than relief valve 1, the system overload of P2 back protected by relief valve 2, and relief valve 1 protects whole valve group and motor overload.The pipeline simultaneously simplifying oil circuit connects.
Two_stage flow pressure-gradient control valve group provided by the utility model is by the simple annexation between flow pressure-gradient control valve and selector valve 4; form flow pressure-gradient control valve group; motor 6 rotating speed can be made and turn to adjustable; stopping motor 6 when not using motor 6, making hydraulic oil directly get back to fuel tank, reduce system power dissipation; first relief valve 1 protects motor 6 to transship; the pipeline simultaneously simplifying oil circuit connects, easy to use, simplifies the difficulty of regular maintenance and accident subsequent treatment.
Claims (10)
1. the road containing two_stage flow pressure-gradient control valve group widens machine scraper, it is characterized in that: the described road containing two_stage flow pressure-gradient control valve group is widened machine scraper and comprised motor, two_stage flow pressure-gradient control valve group, lifting column, inner side baffle, fixed base, scraper plate and outer lateral retaining plate, described lifting column inserts in fixed base, described inner side baffle is fixed on fixed base side, is provided with the limit assembly for preventing lifting column from rotating along its center axle direction between lifting column and sleeve pipe; Described inner side baffle side is provided with connecting plate, connecting plate is provided with rotating shaft, rotating shaft is provided with fixed plate, and fixed plate can rotate relative to spindle central axle; Described scraper plate one end and fixed plate hinged, the scraper plate the other end and outside panel hinge; Described motor drives scraper plate to rotate;
Described two_stage flow pressure-gradient control valve group comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and selector valve; Described oil cylinder accesses the first priority traffic valve by pressure oil pipeline; Described first priority traffic valve accesses the second priority traffic valve; Described first priority traffic valve accesses oil cylinder by return line; Described second priority traffic valve access selector valve; Described selector valve accesses oil cylinder by return line; Described selector valve is connected with motor.
2. the road containing two_stage flow pressure-gradient control valve group according to claim 1 widens machine scraper, it is characterized in that: described scraper also comprises for adjusting the scraper plate inclination angle oil cylinder of scraper plate relative to ground-angle, scraper plate inclination angle oil cylinder ear seat and lifting column top or hinged near tip position place, piston rod end and scraper plate hinged away from side, ground.
3. the road containing two_stage flow pressure-gradient control valve group according to claim 2 widens machine scraper, it is characterized in that: described scraper also comprises for adjusting the blade height oil cylinder of scraper plate relative to ground level, blade height oil cylinder ear seat and fixed base hinged, piston rod end and lifting column side hinged, piston rod central shaft is parallel with lifting column central shaft.
4. the road containing two_stage flow pressure-gradient control valve group according to claim 3 widens machine scraper, it is characterized in that: described scraper plate comprises the first connection scraper plate, second and connects scraper plate and expansion scraper blade, first connect scraper plate one end and fixed base hinged, the other end is connected scraper plate one end with second and is fixedly connected with, and second connects the scraper plate the other end is fixedly connected with expansion scraper blade; Described expansion scraper blade comprises scraper plate fixed plate and scraper plate expansion plate, and scraper plate expansion plate can move relative to scraper plate fixed plate.
5. the road containing two_stage flow pressure-gradient control valve group according to claim 4 widens machine scraper, it is characterized in that: described scraper plate expansion plate can move relative to scraper plate fixed plate and realize particular by scraper plate telescopic oil cylinder, described telescopic oil cylinder ear seat is fixed on and is connected scraper plate side with scraper plate fixed plate near second, and piston rod is fixed on scraper plate expansion plate and connects scraper plate side away from second.
6. widen machine scraper according to the arbitrary described road containing two_stage flow pressure-gradient control valve group of claim 1 to 5, it is characterized in that: described scraper plate is away from rotating shaft place and widen machine frame side near road and be provided with push rod connecting base for connecting adjustable push rod, opposite side is provided with the pull bar connecting base for connecting adjustable drawbar; Scraper rotary is gone to working position place and is fixed by the relative position between scraper plate and frame by adjustable push rod, is fixed by the relative position between scraper plate and outer lateral retaining plate by adjustable push rod.
7. the road containing two_stage flow pressure-gradient control valve group according to claim 6 widens machine scraper, it is characterized in that: described scraper plate is provided with for connecting the bundle system seat that bundle is pull bar away from the top of rotating shaft place, and bundle is that scraper plate bundle ties up in frame when scraping plate closing by pull bar.
8. the road containing two_stage flow pressure-gradient control valve group according to claim 7 widens machine scraper, it is characterized in that: described two_stage flow pressure-gradient control valve group also comprises the first relief valve, and described pressure oil pipeline is by the first relief valve access return line; Described two_stage flow pressure-gradient control valve group also comprises the second relief valve, and described second priority traffic valve is successively by the second relief valve and the first relief valve access return line.
9. the road containing two_stage flow pressure-gradient control valve group according to claim 8 widens machine scraper, it is characterized in that: described first priority traffic valve comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of described first priority traffic valve accesses the second priority traffic valve; First secondary hydraulic fluid port of described first priority traffic valve accesses oil cylinder by return line.
10. the road containing two_stage flow pressure-gradient control valve group according to claim 9 widens machine scraper, it is characterized in that: described second priority traffic valve comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access selector valve of described second priority traffic valve; Second main hydraulic fluid port of described second priority traffic valve accesses the first relief valve by the second relief valve; Described selector valve is 34 logical selector valves.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420689899.8U CN204553373U (en) | 2014-10-31 | 2014-10-31 | A kind of two_stage flow pressure-gradient control valve group |
| CN201420646137.XU CN204267398U (en) | 2014-10-31 | 2014-10-31 | A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420646137.XU CN204267398U (en) | 2014-10-31 | 2014-10-31 | A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689899.8U Division CN204553373U (en) | 2014-10-31 | 2014-10-31 | A kind of two_stage flow pressure-gradient control valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267398U true CN204267398U (en) | 2015-04-15 |
Family
ID=52802269
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689899.8U Expired - Fee Related CN204553373U (en) | 2014-10-31 | 2014-10-31 | A kind of two_stage flow pressure-gradient control valve group |
| CN201420646137.XU Expired - Fee Related CN204267398U (en) | 2014-10-31 | 2014-10-31 | A kind of road containing two_stage flow pressure-gradient control valve group widens machine scraper |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420689899.8U Expired - Fee Related CN204553373U (en) | 2014-10-31 | 2014-10-31 | A kind of two_stage flow pressure-gradient control valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN204553373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526140A (en) * | 2019-09-16 | 2019-12-03 | 江苏建筑职业技术学院 | Tyre crane auxiliary system and control method |
-
2014
- 2014-10-31 CN CN201420689899.8U patent/CN204553373U/en not_active Expired - Fee Related
- 2014-10-31 CN CN201420646137.XU patent/CN204267398U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526140A (en) * | 2019-09-16 | 2019-12-03 | 江苏建筑职业技术学院 | Tyre crane auxiliary system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204553373U (en) | 2015-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Taijie Inventor after: Cao Ke Inventor after: Wang Minghui Inventor after: Liu Yulong Inventor before: Wei Dongdong Inventor before: Wang Yibo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WEI DONGDONG WANG YIBO TO: LI TAIJIE CAO KE WANG MINGHUI LIU YULONG |
|
| 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: 20150415 Termination date: 20171031 |