CN203548567U - Self-resetting double-sealing reverse stopping composite bearing - Google Patents
Self-resetting double-sealing reverse stopping composite bearing Download PDFInfo
- Publication number
- CN203548567U CN203548567U CN201320676372.7U CN201320676372U CN203548567U CN 203548567 U CN203548567 U CN 203548567U CN 201320676372 U CN201320676372 U CN 201320676372U CN 203548567 U CN203548567 U CN 203548567U
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- China
- Prior art keywords
- self
- resetting
- outer ring
- sealing
- retainer
- 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.)
- Expired - Fee Related
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/001—Integrated brakes or clutches for stopping or coupling the relatively movable parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
- F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
- F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
- F16C33/416—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded comb cages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
- F16D41/067—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a self-resetting double-sealing reverse stopping composite bearing. The self-resetting double-sealing reverse stopping composite bearing is characterized in that the first end of the outer circumferential surface of an inner ring is provided with an inner ball groove with an arc-shaped cross section, and the second end of the outer circumferential surface of the inner ring is a smooth surface; the inner circumferential surface of a first outer ring is provided with an outer ball groove with an arc-shaped cross section; the inner circumferential surface of a second outer ring is provided with a plurality of curve surfaces connected in an end-to-end manner; one end of each curve surface is an arc-shaped section, the other end of each curve surface is a straight-line section, and each arc-shaped section is in smooth and transitional connection with each straight-line section; a wavy retaining frame is arranged between the first end of the inner ring and the first outer ring; balls are arranged in ball bags of the wavy retaining frame; the self-resetting retaining frame is arranged between the second end of the inner ring and the second outer ring; rolling columns are arranged in installing window holes of the self-resetting retaining frame; cantilever limiting blocks are arranged at the installing window holes; one end of each cantilever limiting block is fixed on the self-resetting retaining frame, and the other end of each cantilever limiting block is provided with an elastically-bendable bending part bending towards one side of each rolling column. The self-resetting double-sealing reverse stopping composite bearing has the advantages of simple structure, ingenious design and convenience and reliability in assembly.
Description
Technical field
The utility model relates to the reverse clamping stopper bearing of a kind of clutch, and specifically the reverse stop composite bearing of a kind of Self-resetting double-sealing, belongs to reverse clamping stopper bearing technical field.
Background technique
The reverse clamping stopper bearing of existing roller type, is surmounting or transmitting torque, is preventing from reversing, obtained utilization in the switching mechanism of accurately location, the running of unit double speed.Be usually used in all trades and professions such as various lathes, package packing machine, printing machinery, light industry and machinery, petrochemical machinery, metallurgical machinery, mining machinery, speed reducer, Belt Conveyors, Rotatruder, noria, power generating equipment, automobile, steamer, aircraft, bomber and light howitzer.Especially in clutch industry, obtained being widely used, it mainly, by the running of the reverse clamping stopper bearing of roller type, realizes the work of clutch.
Along with the high speed development of clutch industry, the deficiency of existing reverse clamping stopper bearing also engenders, as poor sealing performance, main retainer or the fixed cover of relying on carries out noncontact seal, moisture resistance, Anti-wet are poor, cause bearing internal corrosion, cause stop performance early failue.Because clutch Environmental Conditions is different, for meeting its environment and functional requirement, novel clutch has proposed new functional requirement to reverse clamping stopper bearing, it should bear radial load, also need to bear thrust load, should can a direction rotation in operation process, can transmit larger stop moment of torsion in the other direction again, play the effect of clutch, in clutch installation process, also will be convenient to assembling.The novel clutch at present main form that adopts ball bearing, reverse clamping stopper bearing simultaneously to assemble is realized its functional requirement, two kinds of bearings are assembled simultaneously, cost is higher, and install inconvenient, and exist running mutually to interfere, and cause retardation phenomenon obvious, cause the mutual impact between parts, cannot bear larger stop moment, cause bearing early failue.Due to novel clutch compact structure, bearing, in being pressed into clutch process, while pressing the second cover bearing weighs first set bearing wounded simultaneously, causes bearing running noise large.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of Self-resetting double-sealing reverse stop composite bearing, it is simple in structure, design ingenious, convenient and reliable assembly, meeting under the prerequisite of clamping stopper bearing expection stop performance and life requirements, can guarantee bearing function and stable performance simultaneously.
The technological scheme providing according to the utility model: the reverse stop composite bearing of Self-resetting double-sealing, is characterized in that: comprise inner ring, the first outer ring, the second outer ring, ball, ribbon retainer, roller and Self-resetting retainer; The first end of the external peripheral surface of described inner ring offers the interior ball grooves that transverse section is circular arc, and the second end is smooth surface; On the inner circumferential surface of described the first outer ring, offer the outer ball grooves that transverse section is circular arc; The inner circumferential surface of described the second outer ring is provided with the curvilinear plane of some groups of end-to-ends, and described curvilinear plane one end is arcuate segment, and the other end is straightway, and arcuate segment is connected with straightway rounding off; Described the first outer ring and the second outer ring coaxially arrange, and described inner ring is arranged in the first outer ring and the second outer ring; Described ribbon retainer is arranged between inner ring first end and the first outer ring, and ball is arranged in the ball pocket of ribbon retainer; Described Self-resetting retainer is arranged between inner ring the second end and the second outer ring, roller is arranged in the installation fenestra of Self-resetting retainer, described installation fenestra place is provided with cantilever limiting stopper, described cantilever limiting stopper one end is fixed on Self-resetting retainer, the cantilever limiting stopper the other end be provided with to roller one lateral buckling can elastic bending bending part.
As further improvement of the utility model, the inner circumferential surface lower end of described the first outer ring, the inner circumferential surface upper end of described the second outer ring are respectively equipped with draw-in groove, in described draw-in groove, are equipped with Sealing.
As further improvement of the utility model, described Sealing adopts high-speed bearing reduced pressure sealing circle.
As further improvement of the utility model, described ribbon retainer adopts nylon material to make.
As further improvement of the utility model, ball pocket one side on described ribbon retainer is opened wide, and opposite side sealing is provided with grease storing chamber at the inwall of ball pocket, at ball, puts into after ball pocket, between the inwall of described grease storing chamber and ball, have can storing lubricating grease gap.
As further improvement of the utility model, between adjacent two the ball pockets on described ribbon retainer, be provided with connection strap, the width of described connection strap is less than the internal diameter of described ball pocket, and the side outer wall corresponding to the sealing of ball pocket on described ribbon retainer is provided with grease storage groove.
As further improvement of the utility model, described cantilever limiting stopper is crotch shape, and itself and Self-resetting retainer are structure as a whole.
As further improvement of the utility model, described cantilever limiting stopper and Self-resetting retainer adopt polyether-ether-ketone resin, PA66 or PA46 material to be injected into integrative-structure.
As further improvement of the utility model, described Self-resetting retainer is provided with the locating mistake proofing groove for detection of mistakes and omissions phenomenon after rolling element assembling.
As further improvement of the utility model, between described inner ring and the first outer ring, the second outer ring, be filled with lubricating grease.
compared with prior art, advantage is the utility model:
(1) the second outer ring in the utility model, roller and Self-resetting retainer form the reverse retaining assembly of roller type, after assembling, realize reverse locking function with inner ring; After the first outer ring in the utility model, ball, ribbon retainer and inner ring assembling, can make bearing can bear radially and thrust load, ensured the concentricity of a whole set of bearing in operation process, reduced manufacture cost, easy for installation, avoided secondary press-fitting, reduced in operation process simultaneously and mutually interfered and retardation phenomenon, avoid the mutual impact between parts, greatly improved the reverse stop moment of bearing, reduced bearing operation noise.
(2) the Self-resetting retainer in reverse retaining assembly is provided with cantilever limiting stopper and replaces spring, cantilever limiting stopper has the function of spring, can solve reverse clamping stopper bearing roller reset issues in clutch process, make reverse clamping stopper bearing no longer need spring, thereby completely abolished mounting spring operation, greatly improve efficiency of assembling, reduced manufacture cost; And retainer added and be convenient to automatically assembling and mistake proofing design, can realize the automation assembling of reverse retaining assembly.
(3) bearing two ends are provided with Sealing, have met moisture resistance, the Anti-wet requirement of clutch, effectively avoid bearing internal corrosion, make clutch stable performance, have improved use function and the life-span of bearing.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's overall structure schematic diagram.
Fig. 2 is the utility model embodiment's structure explosive view.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the reverse stop composite bearing of Self-resetting double-sealing in embodiment is mainly comprised of parts such as inner ring 1, the first outer ring 2, the second outer ring 3, ball 4, ribbon retainer 5, roller 6, Self-resetting retainer 7 and Sealings 8.
As shown in Figure 1 and Figure 2, the first end of the external peripheral surface of described inner ring 1 offers the interior ball grooves 1a that transverse section is circular arc, and the second end is smooth surface; On the inner circumferential surface of described the first outer ring 2, offer the outer ball grooves 2a that transverse section is circular arc; The inner circumferential surface of described the second outer ring 3 is provided with the curvilinear plane of some groups of end-to-ends, and described curvilinear plane one end is arcuate segment 3a, and the other end is straightway 3b, and arcuate segment 3a is connected with straightway 3b rounding off; Described the first outer ring 2 and the second outer ring 3 coaxially arrange, and described inner ring 1 is arranged in the first outer ring 2 and the second outer ring 3; Described ribbon retainer 5 is arranged between inner ring 1 first end and the first outer ring 2, and ball 4 is arranged in the ball pocket 5a of ribbon retainer 5; Described Self-resetting retainer 7 is arranged between inner ring 1 second end and the second outer ring 3, roller 6 is arranged in the installation fenestra 7a of Self-resetting retainer 7, described installation fenestra 7a place is provided with cantilever limiting stopper 7b, described cantilever limiting stopper 7b one end is fixed on Self-resetting retainer 7, the cantilever limiting stopper 7b the other end be provided with to roller 6 one lateral bucklings can elastic bending bending part.
As shown in Figure 1 and Figure 2, in order to improve moisture resistance, the Anti-wet of bearing, the inner circumferential surface upper end of the inner circumferential surface lower end of described the first outer ring 2, described the second outer ring 3 is respectively equipped with draw-in groove, is equipped with Sealing 8 in described draw-in groove.Described Sealing 8 can adopt conventional Sealing 8 of the prior art, and preferably adopting application number is the high-speed bearing reduced pressure sealing circle of " 201020254666.7 ".
As shown in Figure 1 and Figure 2, the ribbon retainer in the utility model 5 preferably adopts nylon material to make.Ball pocket 5a mono-side on described ribbon retainer 5 is opened wide, and opposite side sealing is provided with grease storing chamber 5b at the inwall of ball pocket 5a, at ball 4, puts into after ball pocket 5a, between the inwall of described grease storing chamber 5b and ball 4, have can storing lubricating grease gap.Between adjacent two ball pocket 5a on described ribbon retainer 5, be provided with connection strap 5c, the width of described connection strap 5c is less than the internal diameter of described ball pocket 5a, and the side outer wall corresponding to ball pocket 5a sealing on described ribbon retainer 5 is provided with grease storage groove 5d.
As shown in Figure 1 and Figure 2, in the utility model embodiment, described cantilever limiting stopper 7b is crotch shape, and itself and retainer are structure as a whole.For guaranteeing that cantilever limiting stopper 7b reaches the performance of spring, described cantilever limiting stopper 7b and retainer adopt polyether-ether-ketone resin, PA66 or PA46 material to be injected into integrative-structure, specifically select which kind of material to choose according to the size of stopping power.
In addition, on described Self-resetting retainer 7, be also provided with locating mistake proofing groove 7c, since to realize the automation assembling of reverse retaining assembly, can guarantee again the reset promptness of roller 6, make no longer to there will be the serious quality problems such as many shock mounts or few shock mount in the assembling process of reverse clamping stopper bearing, make roller 6 stressed evenly, improved bearing stop reliability and function, reduce running noise, extended the working life of clutch.
During concrete assembling, in the ball pocket 5a of ribbon retainer 5, evenly put into the ball 4 of some, then the ribbon retainer 5 that ball 4 is housed is packed between the first outer ring 2 and the first end of inner ring 1, between the first outer ring 2 and inner ring 1, fill a certain amount of professional lubricating grease.In the installation fenestra 7a of Self-resetting retainer 7, evenly put into the roller 6 of some, then the Self-resetting retainer 7 that roller 6 is housed is packed between the second outer ring 3 and the second end of inner ring 1, form the reverse retaining assembly of roller type, make bearing opposite side can transmit stop moment of torsion, between the second outer ring 3 and inner ring 1, fill a certain amount of professional lubricating grease.Finally in the both sides of composite bearing, respectively add a slice Sealing 8.
The utility model has carried out functional promotion to reverse clamping stopper bearing, and the composite bearing after assembling can bear radially and thrust load, has ensured the concentricity of a whole set of bearing in operation process, has reduced manufacture cost, easy for installation, has avoided secondary press-fitting.The reverse retaining assembly adopting is detachable, both be convenient to the installation of ball 4, avoid again the reverse retaining assembly of roller type to damage in installation process, be convenient to safeguard and change, reduced bearing mutually interferes and retardation phenomenon in operation process, avoid the mutual impact between parts, greatly improved the reverse stop moment of bearing, reduced bearing operation noise.At the two ends of composite bearing, increase Sealing 8, solved moisture resistance, the Anti-wet problem of clutch, promoted use function and the performance of novel clutch, extended working life.
Claims (10)
1. the reverse stop composite bearing of Self-resetting double-sealing, is characterized in that: comprise inner ring (1), the first outer ring (2), the second outer ring (3), ball (4), ribbon retainer (5), roller (6) and Self-resetting retainer (7); The first end of the external peripheral surface of described inner ring (1) offers the interior ball grooves (1a) that transverse section is circular arc, and the second end is smooth surface; On the inner circumferential surface of described the first outer ring (2), offer the outer ball grooves (2a) that transverse section is circular arc; The inner circumferential surface of described the second outer ring (3) is provided with the curvilinear plane of some groups of end-to-ends, and described curvilinear plane one end is arcuate segment (3a), and the other end is straightway (3b), and arcuate segment (3a) is connected with straightway (3b) rounding off; Described the first outer ring (2) and the second outer ring (3) coaxially arrange, and described inner ring (1) is arranged in the first outer ring (2) and the second outer ring (3); Described ribbon retainer (5) is arranged between inner ring (1) first end and the first outer ring (2), and ball (4) is arranged in the ball pocket (5a) of ribbon retainer (5); Described Self-resetting retainer (7) is arranged between inner ring (1) second end and the second outer ring (3), roller (6) is arranged in the installation fenestra (7a) of Self-resetting retainer (7), described installation fenestra (7a) locates to be provided with cantilever limiting stopper (7b), it is upper that described cantilever limiting stopper (7b) one end is fixed on Self-resetting retainer (7), cantilever limiting stopper (7b) the other end be provided with to roller (6) one lateral bucklings can elastic bending bending part.
2. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, it is characterized in that: the inner circumferential surface upper end of the inner circumferential surface lower end of described the first outer ring (2), described the second outer ring (3) is respectively equipped with draw-in groove, is equipped with Sealing (8) in described draw-in groove.
3. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 2, is characterized in that: described Sealing (8) adopts high-speed bearing reduced pressure sealing circle.
4. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, is characterized in that: described ribbon retainer (5) adopts nylon material to make.
5. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, it is characterized in that: ball pocket (5a) side on described ribbon retainer (5) is opened wide, opposite side sealing, inwall at ball pocket (5a) is provided with grease storing chamber (5b), at ball (4), put into after ball pocket (5a), between the inwall of described grease storing chamber (5b) and ball (4), have can storing lubricating grease gap.
6. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, it is characterized in that: between adjacent two the ball pockets (5a) on described ribbon retainer (5), be provided with connection strap (5c), the width of described connection strap (5c) is less than the internal diameter of described ball pocket (5a), and the upper side outer wall corresponding to ball pocket (5a) sealing of described ribbon retainer (5) is provided with grease storage groove (5d).
7. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, is characterized in that: described cantilever limiting stopper (7b) is crotch shape, and itself and Self-resetting retainer (7) are structure as a whole.
8. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, is characterized in that: described cantilever limiting stopper (7b) adopts polyether-ether-ketone resin, PA66 or PA46 material to be injected into integrative-structure with Self-resetting retainer (7).
9. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, is characterized in that: described Self-resetting retainer (7) is provided with the locating mistake proofing groove (7c) for detection of mistakes and omissions phenomenon after rolling element assembling.
10. the reverse stop composite bearing of Self-resetting double-sealing as claimed in claim 1, is characterized in that: described inner ring (1) and the first outer ring (2), the second outer ring are filled with lubricating grease between (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676372.7U CN203548567U (en) | 2013-10-30 | 2013-10-30 | Self-resetting double-sealing reverse stopping composite bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676372.7U CN203548567U (en) | 2013-10-30 | 2013-10-30 | Self-resetting double-sealing reverse stopping composite bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548567U true CN203548567U (en) | 2014-04-16 |
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ID=50466689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320676372.7U Expired - Fee Related CN203548567U (en) | 2013-10-30 | 2013-10-30 | Self-resetting double-sealing reverse stopping composite bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527626A (en) * | 2013-10-30 | 2014-01-22 | 无锡华洋滚动轴承有限公司 | Self-resetting double-sealing reverse locking composite bearing |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
-
2013
- 2013-10-30 CN CN201320676372.7U patent/CN203548567U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527626A (en) * | 2013-10-30 | 2014-01-22 | 无锡华洋滚动轴承有限公司 | Self-resetting double-sealing reverse locking composite bearing |
| CN103527626B (en) * | 2013-10-30 | 2016-04-06 | 无锡华洋滚动轴承有限公司 | The reverse stop composite bearing of Self-resetting double-sealing |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140416 Termination date: 20171030 |