CN204396957U - A kind of three axle centre-to-centre spacing adjustable puncher simultaneously - Google Patents
A kind of three axle centre-to-centre spacing adjustable puncher simultaneously Download PDFInfo
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- CN204396957U CN204396957U CN201520018491.2U CN201520018491U CN204396957U CN 204396957 U CN204396957 U CN 204396957U CN 201520018491 U CN201520018491 U CN 201520018491U CN 204396957 U CN204396957 U CN 204396957U
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- bearing
- centre
- gliding mass
- dish
- shaft
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Abstract
The utility model relates to a kind of three axle centre-to-centre spacing adjustable puncher simultaneously, comprises idle pulley dish, sliding plate, driving shaft, disk cover, dish seat; The upper surface of described idle pulley dish is provided with three idler shafts, and lower surface is provided with three arc step grooves; Described each idler shaft is provided with idle gear; The upper surface of described sliding plate is provided with three U-type groove; Together with described disk cover is connected by screw with dish seat; Described idle pulley dish and sliding plate are separately positioned on the inside of disk cover and dish seat; Described each arc step groove and each U-type groove are arranged in a crossed manner, and infall is all provided with one group of slide assemblies; Described slide assemblies is provided with driven gear; Described driving shaft is arranged on the center of idle pulley dish, and described driving shaft is provided with driving gear; During work: rotate sliding plate, the crossover location of each arc step groove and each U-type groove changes, and makes three groups of slide assemblies drive three groups of driven shafts to do radial motion; The utility model can regulate three axle centre-to-centre spacing simultaneously, and registration.
Description
Technical field
The utility model relates to machine-building punching field, and it is simultaneously adjustable to refer in particular to a kind of three axle centre-to-centre spacing, the one three axle centre-to-centre spacing adjustable puncher simultaneously of registration.
Background technology
Three axles disclosing a kind of adjustable center distance in prior art 201310635425.5 bore, comprise receiver, symmetrical three cylindrical holes on receiver, a set of eccentric cylinder assembly is all installed in each cylindrical hole, and three groups of eccentric cylinder assemblies symmetry is installed, each group eccentric cylinder assembly described includes an eccentric adjusting sleeve and a main shaft disposed therein; The lower end side of each eccentric adjusting sleeve is all provided with a sleeve gear, and is provided with a central gear all engaged with three sleeve gears in the middle of three sleeve gears; The upper end of each main shaft is all installed with a mainshaft gear, and corresponding with one the respectively idle pulley of each mainshaft gear is meshed, and three idle pulleys are symmetrical to be arranged on idle pulley adjustment disk, and idle pulley adjustment disk is movably installed on receiver; The centre of three idle pulleys is provided with an input gear all engaged with three idle pulleys, and this apparatus structure complex structure, adjustable extent is little, volume is large; For this reason, we have developed one can regulate three axle centre-to-centre spacing simultaneously, the one three axle centre-to-centre spacing adjustable puncher simultaneously of registration, and structure is simple, adjustable range large, thus improves the service efficiency of puncher.
Utility model content
The utility model object provides a kind of three axle centre-to-centre spacing simultaneously adjustable to overcome the deficiencies in the prior art, the one three axle centre-to-centre spacing adjustable puncher simultaneously of registration.
For achieving the above object, the technical solution adopted in the utility model is: a kind of three axle centre-to-centre spacing adjustable puncher simultaneously, comprises idle pulley dish, sliding plate, driving shaft, disk cover, dish seat, idler shaft; The upper surface of described idle pulley dish is provided with three idler shafts, and lower surface is provided with three arc step grooves; Described each idler shaft is provided with idle gear; The upper surface of described sliding plate is provided with three U-type groove; Together with described disk cover is connected by screw with dish seat; Described idle pulley dish and sliding plate are separately positioned on the inside of disk cover and dish seat; Described each arc step groove and each U-type groove are arranged in a crossed manner, and infall is all provided with one group of slide assemblies; Described slide assemblies is provided with driven gear; Described driving shaft is arranged on the center of idle pulley dish, and described driving shaft is provided with driving gear; Rotate sliding plate during work, the crossover location of each arc step groove and each U-type groove changes, and makes three groups of slide assemblies drive three groups of driven shafts to do radial motion.
Preferably, the upper surface of described idle pulley dish is provided with three clutch shaft bearing holes, and described three clutch shaft bearing holes circumferentially distribute with the axis of idle pulley dish, and described three clutch shaft bearing holes respectively differ 120 degree of placements.
Preferably, described arc step groove is curved, the same side being arranged on each clutch shaft bearing hole that described each arc step groove is corresponding, the described axis of each arc step groove and the dead in line in each clutch shaft bearing hole.
Preferably, described three U-type groove circumferentially distribute with the axis of sliding plate, and described three U-type groove respectively differ 120 degree of slant settings; Described each U-type groove is provided with strip hole, and described strip hole is arranged on the line of symmetry of U-type groove.
Preferably, the outer ring of described sliding plate is provided with three release handles, described three release handles respectively differ 120 degree of placements; The outer ring of described dish seat is provided with three sections of handle grooves, described three sections of handle grooves are arranged on the upside of the second bulge loop, and the 120 degree of placements of each difference; Corresponding being arranged in three sections of handle grooves of described three release handles.
Preferably, described slide assemblies comprises driven shaft, gliding mass seat, gliding mass lid, the second bearing, nut; Described gliding mass seat and gliding mass lid are all bowl cover shape; Described gliding mass seat is separately positioned in each U-type groove, and described gliding mass seat can be free to slide in each U-type groove; Described gliding mass lid is separately positioned in the large deep-slotted chip breaker of each arc step groove, and described gliding mass lid can be free to slide in the large deep-slotted chip breaker of each arc step groove; Described gliding mass seat and gliding mass lid are linked together by the second bearing, realize synchronizing moving; Described gliding mass seat, gliding mass lid, the second bearing realize fixing up and down by the large deep-slotted chip breaker of U-type groove and arc step groove.
Preferably, the lower end of described driven shaft is from top to bottom successively through gliding mass lid, the second bearing and gliding mass seat, and the lower end of described driven shaft is fixed on the second bearing by the shaft shoulder and nut; The upper end of described driven shaft is disposed with driven gear and the second bearing from the bottom up through idle pulley dish; The centre of described driven gear and the second bearing is also provided with the second sleeve; Described second bearing is arranged in deep-slotted chip breaker.
Preferably, the upper surface center of described sliding plate is provided with the 4th dead eye; Clutch shaft bearing is provided with in described 4th dead eye; The lower end of described driving shaft is arranged in clutch shaft bearing, and is located by the shaft shoulder; The upper end of described driving shaft is disposed with driving gear and clutch shaft bearing from the bottom up through the center of idle pulley dish; The centre of described driving gear and clutch shaft bearing is also provided with the first sleeve; Described clutch shaft bearing is arranged on disk cover, and what described driving shaft upper end had more partially passes through disk cover for connecting external motor.
Preferably, on described idle pulley dish, each clutch shaft bearing hole is provided with the 3rd bearing; The lower end of described idler shaft is arranged in the 3rd bearing, and is located by the shaft shoulder; The upper end of described idler shaft is disposed with idle gear and the 3rd bearing from the bottom up; The centre of described idle gear and the 3rd bearing is also provided with the 3rd sleeve; Described 3rd bearing is arranged on disk cover.
Preferably, the lower surface of described driving gear, driven gear and idle gear in the same horizontal line.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Three axle centre-to-centre spacing described in the utility model simultaneously adjustable puncher regulate the centre-to-centre spacing of three axles by the crossover location of arc step groove and U-type groove, and registration, structure are simple, adjustable range is large, thus improve the service efficiency of puncher.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The local drive mechanism schematic diagram of adjustable puncher while that accompanying drawing 1 being three axle centre-to-centre spacing described in the utility model;
Accompanying drawing 2 is the three axle centre-to-centre spacing described in the utility model local idle pulley dish of adjustable puncher and the structural representations of sliding plate simultaneously;
The overall assembled view of adjustable puncher while that accompanying drawing 3 being three axle centre-to-centre spacing described in the utility model;
Accompanying drawing 4 is the disk cover of the three adjustable puncheres in axle center described in the utility model and the structural representation of local dish seat;
Wherein: 1, idle pulley dish; 101, arc step groove; 102, clutch shaft bearing hole; 2, sliding plate; 201, release handle; 202, U-type groove; 203, strip hole; 3, driving shaft; 4, driven shaft; 5, gliding mass seat; 6, gliding mass lid; 7, clutch shaft bearing; 8, driving gear; 9, the first sleeve; 10, driven gear; 11, the second bearing; 12, the second sleeve; 13, disk cover; 131, deep-slotted chip breaker; 132, the second dead eye; 133, the 3rd dead eye; 134, the first bulge loop; 14, seat is coiled; 141, handle groove; 142, the second bulge loop; 15, nut; 16, idler shaft; 17, idle gear.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1-4 is three axle centre-to-centre spacing described in the utility model adjustable puncheres simultaneously, comprises idle pulley dish 1, sliding plate 2, driving shaft 3, disk cover 13, dish seat 14, idler shaft 16; Described idle pulley dish 1 is rounded, and the center of described idle pulley dish 1 is provided with through hole; The upper surface of described idle pulley dish 1 is provided with three clutch shaft bearing holes 102, and described three clutch shaft bearing holes 102 circumferentially distribute with the axis of idle pulley dish 1, the respectively difference 120 degree of placements of described three clutch shaft bearing holes 102; The lower surface of described idle pulley dish 1 is provided with three arc step grooves 101, described arc step groove 101 is curved, the same side being arranged on each clutch shaft bearing hole 102 of described each arc step groove 101 correspondence, the axis of described each arc step groove 101 and the dead in line in each clutch shaft bearing hole 102; Described sliding plate 2 is rounded, and the upper surface center of described sliding plate 2 is provided with the 4th dead eye; The upper surface of described sliding plate 2 is provided with three U-type groove, and described three U-type groove circumferentially distribute with the axis of sliding plate 2, and described three U-type groove respectively differ 120 degree of slant settings; Described each U-type groove is provided with strip hole 203, and described strip hole 203 is arranged on the line of symmetry of U-type groove; The outer ring of described sliding plate 2 is provided with three release handles 201, the respectively difference 120 degree of placements of described three release handles 201; The lower end of described sliding plate 2 is provided with the second scrobicular ring, and the outer ring of described second scrobicular ring overlaps with the outer ring of sliding plate 2; Described disk cover 13, in bowl cover shape, the upper surface of described disk cover 13 inside is provided with three second dead eyes 132 corresponding with three clutch shaft bearing holes 102 on idle pulley dish 1 and three arc step grooves 101 and deep-slotted chip breaker 131; The center in described disk cover 13 inner upper end face arranges the 3rd dead eye 133, and the bottom surface of described 3rd dead eye 133 is provided with axis hole; The lower end of described disk cover 13 is provided with the first bulge loop 134, and the outer ring of described first bulge loop 134 overlaps with the outer ring of disk cover 13; Ringwise, the upper end of described dish seat 14 is provided with first scrobicular ring corresponding with the first bulge loop 134 to described dish seat 14; The lower end of described dish seat 14 is provided with second bulge loop 142 corresponding with the second scrobicular ring; First bulge loop 134 of described disk cover 13 lower end is arranged in the first scrobicular ring of dish seat 14 upper end, and is fixed by screw; Described idle pulley dish 1 and sliding plate 2 are separately positioned on the inside of disk cover 13 and dish seat 14, and the described upper surface of disk cover 13 inside and the upper surface interval of idle pulley dish 1 are arranged; Second bulge loop 142 of described dish seat 14 lower end is arranged in the second scrobicular ring of sliding plate 2 lower end; Described idle pulley dish 1 is arranged on the upper surface of sliding plate 2, the dead in line of described idle pulley dish 1 and sliding plate 2; Each arc step groove 101 of described idle pulley dish 1 lower surface is arranged in a crossed manner with each U-type groove of sliding plate 2 upper surface, and described each arc step groove 101 is that infall is provided with one group of slide assemblies with each U-type groove; Described slide assemblies comprises driven shaft 4, gliding mass seat 5, gliding mass lid 6, second bearing 11, nut 15; Described gliding mass seat 5 and gliding mass lid 6 are all bowl cover shape; Described gliding mass seat 5 is separately positioned in each U-type groove, and described gliding mass seat 5 can be free to slide in each U-type groove; Described gliding mass lid 6 is separately positioned in the large deep-slotted chip breaker of each arc step groove 101, and described gliding mass lid 6 can be free to slide in the large deep-slotted chip breaker of each arc step groove 101; Described gliding mass seat 5 and gliding mass lid 6 are linked together by the second bearing 11, realize synchronizing moving; Described gliding mass seat 5, gliding mass lid 6, second bearing 11 realize fixing up and down by the large deep-slotted chip breaker of U-type groove and arc step groove 101; Described driven shaft 4 is stepped, and the lower end of described driven shaft 4 is from top to bottom successively through gliding mass lid 6, second bearing 11 and gliding mass seat 5, and the lower end of described driven shaft 4 is fixed on the second bearing 11 by the shaft shoulder and nut 15; The upper end of described driven shaft 4 is disposed with driven gear 10 and the second bearing 11 from the bottom up through idle pulley dish 1; The centre of described driven gear 10 and the second bearing 11 is also provided with the second sleeve 12; Described second bearing 11 is arranged in deep-slotted chip breaker 131; 4th dead eye of the upper surface of described sliding plate 2 is provided with clutch shaft bearing 7; The lower end of described driving shaft 3 is arranged in clutch shaft bearing 7, and is located by the shaft shoulder; The upper end of described driving shaft 3 is disposed with driving gear 8 and clutch shaft bearing 7 from the bottom up through the through hole at idle pulley dish 1 center; The centre of described driving gear 8 and clutch shaft bearing 7 is also provided with the first sleeve 9; Described clutch shaft bearing 7 is arranged in the 3rd dead eye 133 of disk cover 13, and the axis hole partially passing through disk cover 13 that described driving shaft 3 upper end has more is for connecting external motor; On described idle pulley dish 1, each clutch shaft bearing hole 102 is provided with the 3rd bearing; The lower end of described idler shaft 16 is arranged in the 3rd bearing, and is located by the shaft shoulder; The upper end of described idler shaft 16 is disposed with idle gear 17 and the 3rd bearing from the bottom up; The centre of described idle gear 17 and the 3rd bearing is also provided with the 3rd sleeve; Described 3rd bearing is arranged in the second dead eye 132; The lower surface of described driving gear 8, driven gear 10 and idle gear 17 in the same horizontal line; The outer ring of described dish seat 14 is provided with three sections of handle grooves 141, described three sections of handle grooves 141 are arranged on the upside of the second bulge loop 142, and the 120 degree of placements of each difference; Described three release handle 201 correspondences be arranged in three sections of handle grooves 141;
During use: be fixed on puncher by disk cover 13, the part that driving shaft 3 upper end has more is linked together by shaft coupling with the motor of outside; When needing the centre-to-centre spacing of change three axle, unclamp sliding plate 2 and the trip bolt coiling seat 14, rotate sliding plate 2, when each arc step groove 101 of idle pulley dish 1 lower surface changes with the crossover location of each U-type groove of sliding plate 2 upper surface, the position of three groups of slide assemblies is also along with change, and three groups of slide assemblies drive three groups of driven shafts 4 to do radial motion; When sliding plate 2 rotates, because idler shaft 16 is fixed on sliding plate 2, so idler shaft 16 rotates together with sliding plate 2; And the dead in line of each arc step fluted shaft line and idler shaft 16, make driven gear 10 do radial motion around idle gear 17, regulate while realizing three axle centre-to-centre spacing;
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Three axle centre-to-centre spacing described in the utility model simultaneously adjustable puncher regulate the centre-to-centre spacing of three axles by the crossover location of arc step groove and U-type groove, and registration, structure are simple, adjustable range is large, thus improve the service efficiency of puncher.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (10)
1. a three axle centre-to-centre spacing adjustable puncher simultaneously, is characterized in that: comprise idle pulley dish, sliding plate, driving shaft, disk cover, dish seat; The upper surface of described idle pulley dish is provided with three idler shafts, and lower surface is provided with three arc step grooves; Described each idler shaft is provided with idle gear; The upper surface of described sliding plate is provided with three U-type groove; Together with described disk cover is connected by screw with dish seat; Described idle pulley dish and sliding plate are separately positioned on the inside of disk cover and dish seat; Described each arc step groove and each U-type groove are arranged in a crossed manner, and infall is all provided with one group of slide assemblies; Described slide assemblies is provided with driven gear; Described driving shaft is arranged on the center of idle pulley dish, and described driving shaft is provided with driving gear; Rotate sliding plate during work, the crossover location of each arc step groove and each U-type groove changes, and makes three groups of slide assemblies drive three groups of driven shafts to do radial motion.
2. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, it is characterized in that: the upper surface of described idle pulley dish is provided with three clutch shaft bearing holes, described three clutch shaft bearing holes circumferentially distribute with the axis of idle pulley dish, and described three clutch shaft bearing holes respectively differ 120 degree of placements.
3. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, it is characterized in that: described arc step groove is curved, the same side being arranged on each clutch shaft bearing hole that described each arc step groove is corresponding, the described axis of each arc step groove and the dead in line in each clutch shaft bearing hole.
4. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, it is characterized in that: described three U-type groove circumferentially distribute with the axis of sliding plate, described three U-type groove respectively differ 120 degree of slant settings; Described each U-type groove is provided with strip hole, and described strip hole is arranged on the line of symmetry of U-type groove.
5. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, it is characterized in that: the outer ring of described sliding plate is provided with three release handles, described three release handles respectively differ 120 degree of placements; The outer ring of described dish seat is provided with three sections of handle grooves, described three sections of handle grooves are arranged on the upside of the second bulge loop, and the 120 degree of placements of each difference; Corresponding being arranged in three sections of handle grooves of described three release handles.
6. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, is characterized in that: described slide assemblies comprises driven shaft, gliding mass seat, gliding mass lid, the second bearing, nut; Described gliding mass seat and gliding mass lid are all bowl cover shape; Described gliding mass seat is separately positioned in each U-type groove, and described gliding mass seat can be free to slide in each U-type groove; Described gliding mass lid is separately positioned in the large deep-slotted chip breaker of each arc step groove, and described gliding mass lid can be free to slide in the large deep-slotted chip breaker of each arc step groove; Described gliding mass seat and gliding mass lid are linked together by the second bearing, realize synchronizing moving; Described gliding mass seat, gliding mass lid, the second bearing realize fixing up and down by the large deep-slotted chip breaker of U-type groove and arc step groove.
7. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, it is characterized in that: the lower end of described driven shaft is from top to bottom successively through gliding mass lid, the second bearing and gliding mass seat, and the lower end of described driven shaft is fixed on the second bearing by the shaft shoulder and nut; The upper end of described driven shaft is disposed with driven gear and the second bearing from the bottom up through idle pulley dish; The centre of described driven gear and the second bearing is also provided with the second sleeve; Described second bearing is arranged on disk cover.
8. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, is characterized in that: the upper surface center of described sliding plate is provided with the 4th dead eye; Clutch shaft bearing is provided with in described 4th dead eye; The lower end of described driving shaft is arranged in clutch shaft bearing, and is located by the shaft shoulder; The upper end of described driving shaft is disposed with driving gear and clutch shaft bearing from the bottom up through the center of idle pulley dish; The centre of described driving gear and clutch shaft bearing is also provided with the first sleeve; Described clutch shaft bearing is arranged on disk cover, and what described driving shaft upper end had more partially passes through disk cover for connecting external motor.
9. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, is characterized in that: on described idle pulley dish, each clutch shaft bearing hole is provided with the 3rd bearing; The lower end of described idler shaft is arranged in the 3rd bearing, and is located by the shaft shoulder; The upper end of described idler shaft is disposed with idle gear and the 3rd bearing from the bottom up; The centre of described idle gear and the 3rd bearing is also provided with the 3rd sleeve; Described 3rd bearing is arranged on disk cover.
10. three axle centre-to-centre spacing according to claim 1 adjustable puncher simultaneously, is characterized in that: the lower surface of described driving gear, driven gear and idle gear in the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018491.2U CN204396957U (en) | 2015-01-13 | 2015-01-13 | A kind of three axle centre-to-centre spacing adjustable puncher simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018491.2U CN204396957U (en) | 2015-01-13 | 2015-01-13 | A kind of three axle centre-to-centre spacing adjustable puncher simultaneously |
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| Publication Number | Publication Date |
|---|---|
| CN204396957U true CN204396957U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520018491.2U Expired - Fee Related CN204396957U (en) | 2015-01-13 | 2015-01-13 | A kind of three axle centre-to-centre spacing adjustable puncher simultaneously |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625144A (en) * | 2015-01-13 | 2015-05-20 | 苏州市职业大学 | Three-shaft-center-distance simultaneously-adjustable hole puncher |
| CN105171014A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Turning tool synchronous-adjustment structure of multi-shaft parallel cutting device |
| CN105234432A (en) * | 2015-09-30 | 2016-01-13 | 河南飞龙(芜湖)汽车零部件有限公司 | Multi-shaft parallel-connection cutting machining device |
| CN108637302A (en) * | 2018-06-29 | 2018-10-12 | 陕西图灵电子科技有限公司 | Multi-shaft interlocked drilling cutting apparatus |
| CN112975764A (en) * | 2021-04-24 | 2021-06-18 | 宫礼康 | Adjusting structure of steel pipe inner wall deruster |
-
2015
- 2015-01-13 CN CN201520018491.2U patent/CN204396957U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625144A (en) * | 2015-01-13 | 2015-05-20 | 苏州市职业大学 | Three-shaft-center-distance simultaneously-adjustable hole puncher |
| CN104625144B (en) * | 2015-01-13 | 2017-04-12 | 苏州市职业大学 | Three-shaft-center-distance simultaneously-adjustable hole puncher |
| CN105171014A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Turning tool synchronous-adjustment structure of multi-shaft parallel cutting device |
| CN105234432A (en) * | 2015-09-30 | 2016-01-13 | 河南飞龙(芜湖)汽车零部件有限公司 | Multi-shaft parallel-connection cutting machining device |
| CN105171014B (en) * | 2015-09-30 | 2017-06-23 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of lathe tool synchronous regulation structure of multiaxis parallel connection cutting apparatus |
| CN105234432B (en) * | 2015-09-30 | 2017-07-28 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of multiaxis cutting apparatus in parallel |
| CN108637302A (en) * | 2018-06-29 | 2018-10-12 | 陕西图灵电子科技有限公司 | Multi-shaft interlocked drilling cutting apparatus |
| CN112975764A (en) * | 2021-04-24 | 2021-06-18 | 宫礼康 | Adjusting structure of steel pipe inner wall deruster |
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Legal Events
| Date | Code | Title | Description |
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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: 20150617 Termination date: 20160113 |