CN202591947U - Internal combustion bolt wrench - Google Patents
Internal combustion bolt wrench Download PDFInfo
- Publication number
- CN202591947U CN202591947U CN 201220159275 CN201220159275U CN202591947U CN 202591947 U CN202591947 U CN 202591947U CN 201220159275 CN201220159275 CN 201220159275 CN 201220159275 U CN201220159275 U CN 201220159275U CN 202591947 U CN202591947 U CN 202591947U
- Authority
- CN
- China
- Prior art keywords
- internal combustion
- combustion engine
- shaft
- reduction gearing
- gearing mechanism
- 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
Links
Images
Abstract
The utility model relates to a railway maintenance tool, and particularly relates to an internal combustion bolt wrench. The internal combustion bolt wrench comprises an internal combustion engine, a clutch transmission mechanism, a speed reducing transmission mechanism, a reversing mechanism, a torque control mechanism and a working sleeve; an internal combustion engine handle is fixedly mounted on the internal combustion engine; a rail face travelling mechanism is fixedly mounted at the bottom of the internal combustion engine; an operation handle is fixedly mounted on a transmission mechanism box body; the torque control mechanism comprises an upper jack, a lower jack, a spring base, a disc spring, first steel balls, a locking nut and a constant-torque nut; a plurality of trenches are asymmetrically distributed in the upper end face of the lower jack; the cross sections of the trenches are unfolded to be a combined curve formed by sequentially connecting inclined lines, straight lines and arcs end to end; the first steel ball is mounted in each trench; the spring base is sleeved on the outer surface of the upper jack; the disc spring is arranged between the spring base and the constant-torque nut; the disc spring is mounted in the spring base; and the lower part of the lower jack is fixedly connected with an output shaft at the tail end. The internal combustion bolt wrench provided by the utility model has the advantages of simple and reasonable structure, controllable torque, higher control precision, long service life, high operation efficiency, and lighter weight and is suitable for popularization and implementation.
Description
Technical field
The utility model relates to a kind of railroad maintenance instrument, particularly a kind of internal combustion track wrench.
Background technology
In railway department; Loosening, tighten bolt is a heavy work in circuit routine servicing and the maintenance; Diffuse at bolt oiling, rail stress, steel rail laying, switch tracks and operation such as change its course in, all relate to this operation, track wrench is exactly a kind of equipment of accomplishing above-mentioned operation.Along with continuing to increase of the improving constantly of train running speed, train operation density, the requirement of line upkeep is improved constantly, the skylight that can provide is shorter and shorter maintenance time, and the distance that the workmen reaches the spot behind the closure of track in addition strengthens.At present, loosen, tighten in the bolt operation at circuit routine servicing and maintenance, the more common single head that has impacts track wrench, hydraulic drive spanner and double (end) wrench, but all has certain defective.Impact track wrench such as: single head and have the uncontrollable shortcoming of moment of torsion, though hydraulic drive spanner controllable torque, output torque are bigger, complex structure, price is higher, and double (end) wrench weight is heavier, carries inconvenience, efficient is not high.
Summary of the invention
The technical problem that the utility model will solve is exactly the deficiency that overcomes above-mentioned prior art, and provides a kind of simple in structure and reasonable, controllable torque, and service life is longer, the internal combustion track wrench that efficient is high.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of internal combustion track wrench; Comprise internal combustion engine, clutch transmission, reduction gearing mechanism, changement, moment of torsion controlling organization and work sleeve and operation part successively; Said clutch transmission is fixed on the internal combustion engine through installing plate; And be connected with the casing of reduction gearing mechanism through shell, the reduction gearing mechanism casing is provided with changement, and the output shaft of reduction gearing mechanism is connected with the upper tooth build-in of moment of torsion controlling organization surely; The terminal output shaft bottom of moment of torsion controlling organization is fixedly connected with the work sleeve; Be installed with the internal combustion engine handrail on the internal combustion engine, the internal combustion engine bottom is installed with the rail level running mechanism, is installed with the operation handrail on the reduction gearing mechanism casing.
Said clutch transmission comprises installing plate, shell, clutch, clutch output shaft and spline housing; Installing plate is fixed on the internal combustion engine; Be connected with the casing of reduction gearing mechanism through shell, clutch is installed on the internal combustion engine shaft, gives clutch output shaft with transmission of power; One end of spline housing is fixedly connected with clutch output shaft, and the other end is fixedly connected with the bevel pinion of reduction gearing mechanism.
Said reduction gearing mechanism comprises by being fixedly mounted on bevel pinion in the casing as input; Respectively with the first order deceleration part that bevel gear wheel that two on the geared sleeve be oppositely arranged is formed that is fixed on of bevel pinion engagement; Bevel pinion and bevel gear wheel all adopt Helical Bevel Gear; The transition portion that is made up of the power transmission shaft of changement is by central gear, with four planetary gears on the planetary wheel carrier that are fixed on of central gear engagement; With the second level deceleration part that the ring gear tube of planetary gear engagement is formed, planetary wheel carrier is connected through four directions and hold-down screw as the output of middle output shaft formation and with the upper tooth embedding of moment of torsion controlling organization.
Said changement comprises switching-over handle, fairlead, slippage cover, reversing shaft bearing sleeve, switching-over pulling shaft, power transmission shaft and second steel ball; The switching-over handle is fixedly connected through securing member with fairlead, and fairlead is provided with two helicla flutes, in the U-lag of reversing shaft bearing sleeve outer surface straight pin is installed; The straight pin other end is installed in the helicla flute of fairlead; The slippage cover is installed between reversing shaft bearing sleeve and the fairlead, slippage put be provided with two the guiding reversing bearings overlap axially movable guiding elongated slot, the switching-over pulling shaft link together through securing member, bearing and reversing bearing cover; Its underpart is provided with arc groove; The switching-over pulling shaft is installed in the power transmission shaft, and power transmission shaft along the circumferential direction is evenly distributed with three circular arc elongated slots, and second steel ball is embedded in the circular arc elongated slot; Can move vertically, the relevant position of the geared sleeve external peripheral surface of reduction gearing mechanism and the circular arc elongated slot of power transmission shaft is provided with three circular arc keyways that are complementary with second steel ball.
First steel ball that said moment of torsion controlling organization comprises upper tooth embedding, lower tooth embedding, locking nut and turns round nut, dish spring surely and use as driving key; Lower tooth is packed with the end face asymmetric distribution has a plurality of grooves; The longitudinal section of groove expands into the build-up curve that oblique line, straight line and circular arc head and the tail link to each other successively and constitute; First steel ball is installed in each groove, and the dish spring is installed in the spring base, and lower tooth embedding bottom is fixedly connected with terminal output shaft.
Said rail level running mechanism comprises the rail level travelling wheel that matches with rail.
The operation principle of the utility model is:
The internal combustion engine of the utility model is given reduction gearing mechanism through clutch transmission with transmission of power; Power passes to the moment of torsion controlling organization behind the reduction gearing mechanism reduction of speed; And then the work of drive sleeve rotates; Changement is installed on the casing of reduction gearing mechanism, can realize the change of work sleeve direction of rotation, thereby realizes the operation that loosens, tighten of bolt.
The beneficial effect of the utility model technical scheme is:
1, structurally; The utility model comprises internal combustion engine, clutch transmission, reduction gearing mechanism, changement, moment of torsion controlling organization and work sleeve and operation part successively, is installed with the internal combustion engine handrail on the internal combustion engine, and the internal combustion engine bottom is installed with the rail level running mechanism; Be installed with the operation handrail on the reduction gearing mechanism casing; Structural design is simple and rationally, controllable torque loosens, tighten bolt operating efficiency height; The moment of torsion controlling organization adopts special steel ball torque controller, changes sliding friction into rolling friction, and the moment of torsion control accuracy is improved, and steel ball adopts the asymmetric distribution design, and every circle only has one to combine the position, has improved steel ball service life.
2, structurally; The utility model reduction gearing mechanism adopts the planetary reduction gear design of spiral bevel gear and four lines star-wheel, and transmission is more simple and direct, only needs the two-stage transmission can realize the gearratio up to 28; And volume has obtained minimizing; Greatly alleviated the weight of complete machine, be 40%～50% of same category of device weight, convenient on-the-spot the use.
3, structurally, the utility model changement adopts the design of slippage steel ball, and changement is more easy, and can realize switching-over rapidly in the motion process, need not to cut off power, dispense with parking, switching-over fluent movements.
4, the utility model simplicity of design and rationally can be widely used in the operation that loosens, tighten of track bolt, and controllable torque and control accuracy are higher; Long service life, operating efficiency is high, and weight is lighter; It is rapid, reliable, smooth to commutate, and is easy to promote, and has good economic benefit and social benefit.
Accompanying drawing and explanation
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation, wherein:
Fig. 1 is the structural representation of the utility model internal combustion track wrench;
Fig. 2 is the sectional structure sketch map of internal combustion track wrench running part shown in Figure 1;
Fig. 3 is the tooth form expanded view of the utility model internal combustion track wrench moment of torsion controlling organization lower tooth embedding;
Fig. 4 is the perspective view of the utility model internal combustion track wrench reduction gearing mechanism power transmission shaft;
Fig. 5 is the perspective view of the utility model internal combustion track wrench reduction gearing mechanism geared sleeve;
Fig. 6 is the perspective view of the utility model internal combustion track wrench changement switching-over pulling shaft;
Fig. 7 is the perspective view of the utility model internal combustion track wrench changement fairlead;
Fig. 8 is the perspective view of the utility model internal combustion track wrench changement slippage cover;
Sequence number among the figure: 1, internal combustion engine, 2, the internal combustion engine handrail, 3, clutch transmission, 4, reduction gearing mechanism, 5, changement, 6, the operation handrail, 7, the moment of torsion controlling organization; 8, work sleeve, 9, the rail level running mechanism, 10, internal combustion engine shaft, 11, installing plate, 12, clutch, 13, the clutch output shaft, 14, shell; 15, spline housing, 16, bevel pinion, 17, casing, 18, fairlead, 19, the slippage cover, 20, the switching-over handle, 21, straight pin; 22, reversing shaft bearing sleeve, 23, the switching-over pulling shaft, 24, power transmission shaft, 25, geared sleeve, 26, bevel gear wheel, 27, second steel ball; 28, planetary gear, 29, ring gear, 30, middle output shaft, 31, the upper tooth embedding, 32, first steel ball, 33, the lower tooth embedding; 34, terminal output shaft, 35, spring base, 36, the dish spring, 37, turn round nut surely, 38, locking nut, 39, groove; 40, helicla flute, 41, the guiding elongated slot, 42, arc groove, 43, the circular arc elongated slot, 44, the circular arc keyway, 45, the rail level travelling wheel.
The specific embodiment
Embodiment: referring to Fig. 1 to Fig. 8; Among the figure, the utility model internal combustion track wrench mainly is made up of internal combustion engine 1, clutch transmission 3, reduction gearing mechanism 4, changement 5, moment of torsion controlling organization 7, work sleeve 8, internal combustion engine handrail 2, operation handrail 6, rail level running mechanism 9.Said rail level running mechanism 9 comprises the rail level travelling wheel 45 that matches with rail.Internal combustion engine 1 is given reduction gearing mechanism 4 through clutch transmission 3 with transmission of power; Power passes to moment of torsion controlling organization 7 behind reduction gearing mechanism 4 reductions of speed; And then the work of drive sleeve 8 rotates; Changement 5 is installed on the casing 17 of reduction gearing mechanism 4, can realize the change of work sleeve 8 direction of rotation, thereby realizes the operation that loosens, tighten of track bolt.
Said clutch transmission 3 contains installing plate 11, shell 14, clutch 12, clutch output shaft 13, spline housing 15.Installing plate 11 is fixed on the internal combustion engine 1; Be connected with the casing 17 of reduction gearing mechanism 4 through shell 14; Clutch 12 is installed on the internal combustion engine shaft 10; Give clutch output shaft 13 with transmission of power, spline housing 15 two are connected with clutch output shaft 13 respectively, transmission of power are given the bevel pinion 16 of reduction gearing mechanism 4.
Said reduction gearing mechanism 4 adopts spiral bevel gear and four lines star transmission mechanism, contains bevel pinion 16, bevel gear wheel 26, geared sleeve 25, power transmission shaft 24, planetary gear 28, internal gear 29, output shaft 30.Power passes to the planetary gear speed reducing mechanism with four planetary gears 28 through power transmission shaft 24 after bevel pinion 16 and bevel gear wheel 26 slow down, finally through middle output shaft 30 transmission of power is given the upper tooth embedding 31 of moment of torsion controlling organization 7.
Said moment of torsion controlling organization 7 contains upper tooth embedding 31, lower tooth embedding 33, spring base 35, dish spring 36, first steel ball 32, turns round nut 37, locking nut 38 surely.Upper and lower tooth embedding 31,33 is oppositely arranged; Upper tooth embedding 31 outer surfaces are set with locking nut 38 from top to bottom successively and turn round nut 37 surely; Lower tooth embedding 33 upper surface asymmetric distribution have a plurality of grooves 39, and the longitudinal section of groove 39 is oblique line, straight line and the build-up curve that the circular arc head and the tail link to each other successively and constitute, and first steel ball 32 is installed in each groove 39; Contact is provided with spring base 35 on first steel ball 32; Spring base 35 is sleeved on upper tooth embedding 31 outer surfaces, spring base 35 and turn round surely and be provided with dish spring 36 between the nut 37, and dish spring 36 is installed in the spring base 35.Utilize first steel ball 32 of asymmetric arrangement to transmit moment of torsion, every circle only has one to combine the position.When clockwise rotating, but lower tooth embedding 33 working faces are the inclined-plane control torque, and the decrement of adjustment dish spring 36 can be adjusted moment of torsion, and when rotating counterclockwise, lower tooth embedding 33 working faces are for facing directly, not control torque.Lower tooth embedding 33 drives terminal output shaft 34 and rotates with work sleeve 8.
Said changement 5 contains switching-over handle 20, fairlead 18, slippage cover 19, reversing shaft bearing sleeve 22, switching-over pulling shaft 23, power transmission shaft 24, second steel ball 27, geared sleeve 25.Switching-over handle 20 and fairlead 18 are connected through screw, and two helicla flutes 40 are arranged on the fairlead 18, and reversing shaft bearing sleeve 22 is equipped with straight pin 21; Be positioned in the helicla flute 40 of fairlead 18, slippage cover 19 is installed between reversing shaft bearing sleeve 22 and the fairlead 18, contains two guiding reversing shaft bearing sleeve 22 axially movable guiding elongated slots 41 on the slippage cover 19; Switching-over pulling shaft 23 links together through bolt, bearing, and there is arc groove 42 its underpart, and switching-over pulling shaft 23 is installed in the power transmission shaft 24; Power transmission shaft 24 circumferencial directions have three circular arc elongated slots 43; Second steel ball 27 is embedded in the circular arc elongated slot 43, can move axially, and contains three circular arc keyways 44 on geared sleeve 25 circumference.Rotation With Changing can drive fairlead 18 to handle 20 and rotate; Drive straight pin 21 and reversing shaft bearing sleeve 22 upper and lower moving through its helicla flute 40; Thereby realize that switching-over pulling shaft 23 drives second steel ball, 27 upper and lower moving; Make upper and lower geared sleeve 25 drive power transmission shaft 24 respectively and rotate, accomplish the positive and negative rotation of power transmission shaft 24 through second steel ball 27.
The above is merely the schematic specific embodiment of the utility model; Be not in order to limit the scope of the utility model; Equivalent variations and modification that any those skilled in the art is made under the prerequisite that does not break away from the utility model design and principle all should belong to the scope that the utility model is protected.
Claims (6)
1. internal combustion track wrench; Comprise internal combustion engine, clutch transmission, reduction gearing mechanism, changement, moment of torsion controlling organization and work sleeve and operation part successively; It is characterized in that: said clutch transmission is fixed on the internal combustion engine through installing plate; And be connected with the casing of reduction gearing mechanism through shell, the reduction gearing mechanism casing is provided with changement, and the output shaft of reduction gearing mechanism is connected with the upper tooth build-in of moment of torsion controlling organization surely; The terminal output shaft bottom of moment of torsion controlling organization is fixedly connected with the work sleeve; Be installed with the internal combustion engine handrail on the internal combustion engine, the internal combustion engine bottom is installed with the rail level running mechanism, is installed with the operation handrail on the reduction gearing mechanism casing.
2. internal combustion track wrench according to claim 1; It is characterized in that: said clutch transmission comprises installing plate, shell, clutch, clutch output shaft and spline housing, and installing plate is fixed on the internal combustion engine, is connected with the casing of reduction gearing mechanism through shell; Clutch is installed on the internal combustion engine shaft; Give clutch output shaft with transmission of power, an end of spline housing is fixedly connected with clutch output shaft, and the other end is fixedly connected with the bevel pinion of reduction gearing mechanism.
3. internal combustion track wrench according to claim 1; It is characterized in that: said reduction gearing mechanism comprises by being fixedly mounted on bevel pinion in the casing as input; Respectively with the first order deceleration part that bevel gear wheel that two on the geared sleeve be oppositely arranged is formed that is fixed on of bevel pinion engagement; Bevel pinion and bevel gear wheel all adopt Helical Bevel Gear; The transition portion that is made up of the power transmission shaft of changement is by central gear, with four planetary gears on the planetary wheel carrier that are fixed on of central gear engagement; With the second level deceleration part that the ring gear of planetary gear engagement is formed, planetary wheel carrier is connected through four directions and hold-down screw as the output of middle output shaft formation and with the upper tooth embedding of moment of torsion controlling organization.
4. internal combustion track wrench according to claim 1 is characterized in that: said changement comprises switching-over handle, fairlead, slippage cover, reversing shaft bearing sleeve, switching-over pulling shaft, power transmission shaft and second steel ball, and the switching-over handle is fixedly connected through securing member with fairlead; Fairlead is provided with two helicla flutes; In the U-lag of reversing shaft bearing sleeve outer surface straight pin is installed, the straight pin other end is installed in the helicla flute of fairlead, and the slippage cover is installed between reversing shaft bearing sleeve and the fairlead; Slippage put be provided with two the guiding reversing bearings overlap axially movable guiding elongated slot; The switching-over pulling shaft links together through securing member, bearing and reversing bearing cover, and its underpart is provided with arc groove, and the switching-over pulling shaft is installed in the power transmission shaft; Power transmission shaft along the circumferential direction is evenly distributed with three circular arc elongated slots; Second steel ball is embedded in the circular arc elongated slot, can move vertically, and the relevant position of the geared sleeve external peripheral surface of reduction gearing mechanism and the circular arc elongated slot of power transmission shaft is provided with three circular arc keyways that are complementary with second steel ball.
5. internal combustion track wrench according to claim 1; It is characterized in that: first steel ball that said moment of torsion controlling organization comprises upper tooth embedding, lower tooth embedding, locking nut and turns round nut, dish spring surely and use as driving key; Lower tooth is packed with the end face asymmetric distribution has a plurality of grooves; The longitudinal section of groove expands into the build-up curve that oblique line, straight line and circular arc head and the tail link to each other successively and constitute; First steel ball is installed in each groove, and the dish spring is installed in the spring base, and lower tooth embedding bottom is fixedly connected with terminal output shaft.
6. internal combustion track wrench according to claim 1 is characterized in that: said rail level running mechanism comprises the rail level travelling wheel that matches with rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220159275 CN202591947U (en) | 2012-04-16 | 2012-04-16 | Internal combustion bolt wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220159275 CN202591947U (en) | 2012-04-16 | 2012-04-16 | Internal combustion bolt wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202591947U true CN202591947U (en) | 2012-12-12 |
Family
ID=47309530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220159275 Expired - Fee Related CN202591947U (en) | 2012-04-16 | 2012-04-16 | Internal combustion bolt wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202591947U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394907A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工业大学 | High-tolerance automatic bolt mounting device |
| CN104070348A (en) * | 2014-06-16 | 2014-10-01 | 张晶晶 | Internal combustion bolt spanner |
| CN104148927A (en) * | 2014-07-23 | 2014-11-19 | 九江学院 | Fastening member assembling machine capable of automatically controlling various torque values |
| CN107322519A (en) * | 2017-09-05 | 2017-11-07 | 重庆鼎誉机电有限公司 | A kind of internal combustion bolt wrench |
| CN107553382A (en) * | 2017-09-30 | 2018-01-09 | 重庆鼎誉机电有限公司 | A kind of internal combustion bolt wrench |
-
2012
- 2012-04-16 CN CN 201220159275 patent/CN202591947U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394907A (en) * | 2013-08-20 | 2013-11-20 | 哈尔滨工业大学 | High-tolerance automatic bolt mounting device |
| CN103394907B (en) * | 2013-08-20 | 2015-09-16 | 哈尔滨工业大学 | A kind of large tolerance bolt automatic installation apparatus |
| CN104070348A (en) * | 2014-06-16 | 2014-10-01 | 张晶晶 | Internal combustion bolt spanner |
| CN104070348B (en) * | 2014-06-16 | 2016-08-24 | 张晶晶 | Internal combustion bolt wrench |
| CN104148927A (en) * | 2014-07-23 | 2014-11-19 | 九江学院 | Fastening member assembling machine capable of automatically controlling various torque values |
| CN107322519A (en) * | 2017-09-05 | 2017-11-07 | 重庆鼎誉机电有限公司 | A kind of internal combustion bolt wrench |
| CN107322519B (en) * | 2017-09-05 | 2018-11-27 | 重庆鼎誉机电有限公司 | A kind of internal combustion bolt wrench |
| CN107553382A (en) * | 2017-09-30 | 2018-01-09 | 重庆鼎誉机电有限公司 | A kind of internal combustion bolt wrench |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202591947U (en) | Internal combustion bolt wrench | |
| CN103670264B (en) | The forward and reverse output of a kind of double-drive coaxial is threaded into rock drilling machine | |
| CN202832532U (en) | Multifunctional rotary drum device of thin coal seam coal cutter | |
| CN103769677A (en) | Differential stepless speed-regulation multimode hobbing machine tool | |
| CN103273089B (en) | Vertical-and-horizontal integrated type spindle box | |
| CN102198532B (en) | Device for automatically converting positive rotation and reverse rotation of electric drill | |
| CN103821881B (en) | Power truck gearshift mechanism | |
| CN203801216U (en) | Transmission and lifting device of boat tractor | |
| CN201473262U (en) | Large-tonnage screw jack | |
| CN203717803U (en) | Third gear variable transmission mechanism for electric vehicle | |
| CN201963834U (en) | High-power transmission continuously variable transmission (CVT) | |
| CN106763554B (en) | A kind of method that horizontal pure electrical drive power system of automobile-used twin shaft carries out speed change | |
| CN203650061U (en) | Eight-level speed change mechanism for one-side curve disc | |
| CN203488663U (en) | Gear-free speed reducer | |
| CN202628960U (en) | Main transmission mechanism for three-speed rock drilling machine | |
| CN202707960U (en) | Speed regulation device | |
| CN202291505U (en) | Rechargeable electric hand drill | |
| CN105196058B (en) | Double automatic drilling and tapping machines of main shaft | |
| CN201586952U (en) | Automotive bolt spanner for sleepers | |
| CN110159293B (en) | Drilling and milling type cutting experiment mechanism of heading machine | |
| CN102777174B (en) | Multifunctional drum device of thin seam coal shearer | |
| CN101804900A (en) | Speed reducer for conveyor | |
| CN102454362A (en) | Gear box floating structure of drilling machine power head | |
| CN202170981U (en) | Speed changing spindle box of quarrying machine | |
| CN202555918U (en) | Power head of automatic tapping machine |
Legal Events
| 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 |
Granted publication date: 20121212 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |