CN201392327Y - Scanning device for rail weld seam flaw detection - Google Patents
Scanning device for rail weld seam flaw detection Download PDFInfo
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- CN201392327Y CN201392327Y CN200920079851U CN200920079851U CN201392327Y CN 201392327 Y CN201392327 Y CN 201392327Y CN 200920079851 U CN200920079851 U CN 200920079851U CN 200920079851 U CN200920079851 U CN 200920079851U CN 201392327 Y CN201392327 Y CN 201392327Y
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- probe
- fixed mount
- rail
- probe cassette
- locating rack
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- 238000001514 detection method Methods 0.000 title abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 116
- 238000007689 inspection Methods 0.000 claims description 16
- 238000003466 welding Methods 0.000 abstract description 13
- 238000004804 winding Methods 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 13
- 238000002592 echocardiography Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 206010061619 Deformity Diseases 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a scanning device for rail weld seam flaw detection, wherein both ends of a rectangular frame-shaped support frame (1) are provided with n-shaped fixing feet (7); slide rail (2) both ends are fixed the both ends of rectangular frame shape support frame (1), install first probe box mount (3), second probe box mount (4) and third probe box mount (5) slide rail (2) are gone up and can follow slide rail (2) free slip cable pivot (11) all are equipped with at the both ends of rectangular frame shape support frame (1), cable (6) are along slide rail (2) direction winding on two cable pivot (11). The utility model discloses simple structure, convenient operation makes traditional welding seam flaw detection manual scanning become mechanical type scanning and looks into, improves the track accuracy of detecting a flaw greatly and can realize the flaw detection of multiple welding seam.
Description
Technical field
The utility model relates to the scanning equipment that is used for rail seam inspection.
Background technology
Domestic each Railway Bureau generally adopts two kinds of method butt welded seams to detect a flaw at present, and a kind of is to carry out scanning with single probe butt welded seam, and this checking method can not be found the planar disfigurement of weld seam web of the rail part, causes omission easily; Second kind is to adopt many linear transducer arrays formula checking method, though this checking method is feasible in theory, because test surface is coarse, defective coupling also easily causes omission.
In simultaneously traditional flaw detection mode is by manual scanning, that is to say by hand-held scanning equipment to carry out scanning, and manual scanning mode location is inaccurate and inhomogeneous to the pressure of probe, is prone to the phenomenon of Lou visiting,
The utility model content
The purpose of this utility model has provided a kind of rail seam inspection scanning equipment that can improve track flaw detection accuracy greatly and can realize multiple seam inspection.
The technical solution of the utility model is as follows:
The scanning equipment that is used for rail seam inspection, this scanning equipment comprises square shaped as frame bracing frame, slide rail, the first probe cassette fixed mount, the second probe cassette fixed mount, the 3rd probe cassette fixed mount and drag-line, and described square shaped as frame bracing frame two ends have " ㄇ " shape fixing feet; Described slide rail two ends are fixed on two of described square shaped as frame bracing frame, the described first probe cassette fixed mount, the second probe cassette fixed mount and the 3rd probe cassette fixed mount are installed on the described slide rail and can be free to slide along slide rail, the drag-line rotating shaft all is equipped with at two ends at described square shaped as frame bracing frame, and described drag-line is wrapped in the two drag-line rotating shafts along the slide rail direction.
Described square shaped as frame bracing frame is made up of 2 supporting seats and 2 side plates, and biside plate be arranged in parallel and its two ends are separately fixed on two supporting seats, and wherein said two supporting seat lower ends form described " ㄇ " shape fixing feet.
The described second probe cassette fixed mount adopts identical structure with the 3rd probe cassette fixed mount: comprise probe locating rack, stage clip pressing plate, stage clip, slide block, described stage clip pressing plate is fixed on the top of described probe locating rack, described stage clip upper end is resisted against on the described stage clip pressing plate, lower end and the probe upper surface butt that is arranged in the described probe locating rack; Described probe locating rack both wings all are connected with the slide block web joint of inverted "L" shaped, described slide block by screw retention on the slide block web joint; Be provided with compact heap between described slide block and slide block web joint, be provided with compact heap down in described slide block lower end, at least one slide block web joint of described probe locating rack both wings is provided with dial plate; By described slide block the second probe cassette fixed mount and the 3rd probe cassette fixed mount are sleeved on described slide rail.
The described first probe cassette fixed mount comprises transversal sonde locating rack, pressing plate, spring, adjustment screw rod, screw bolt seat, transversal sonde moving slider, both wings bottom at described screw bolt seat all is fixed with described transversal sonde moving slider, is provided with the drag-line compact heap between this transversal sonde moving slider and the screw bolt seat; Described adjustment screw rod screws in the screw of described screw bolt seat; Described transversal sonde locating rack is fixed on the middle part of described adjustment screw rod, described pressing plate is fixed on this transversal sonde locating rack top, described spring upper end is resisted against on the described pressing plate, lower end and the transversal sonde upper surface butt that is arranged in the described transversal sonde locating rack, at least one end of described screw bolt seat both wings is provided with the transversal sonde dial plate; By described transversal sonde moving slider the first probe cassette fixed mount is sleeved on the slide rail.
Described side plate arranged outside has rule, and the indication end of wherein said dial plate and transversal sonde dial plate is positioned at the outside of described side plate and points to described rule.
Described " ㄇ " shape fixing feet is provided with and tights a bolt.
Beneficial effect: the utility model is simple in structure, and is easy to operate, makes the manual scanning of traditional seam inspection become the mechanical type scanning, improves the flaw detection that track flaw detection accuracy also can realize multiple weld seam greatly.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the first probe cassette fixed mount;
Fig. 4 is the structural representation of the second probe cassette fixed mount or the 3rd probe cassette fixed mount;
Fig. 5 is drag-line and the location diagram that tights a bolt.
Embodiment
Shown in Fig. 1,2,3,4,5: the scanning equipment that is used for rail seam inspection, this scanning equipment comprises square shaped as frame bracing frame 1, slide rail 2, the first probe cassette fixed mount 3, the second probe cassette fixed mount 4, the 3rd probe cassette fixed mount 5 and drag-line 6, and described square shaped as frame bracing frame 1 two ends have " ㄇ " shape fixing feet 7; Described slide rail 2 two ends are fixed on two of described square shaped as frame bracing frame 1, the described first probe cassette fixed mount 3, the second probe cassette fixed mount 4 and the 3rd probe cassette fixed mount 5 are installed on the described slide rail 2 and can be free to slide along slide rail 2, drag-line rotating shaft 11 all is equipped with at two ends at described square shaped as frame bracing frame 1, and described drag-line 6 is wrapped in the two drag-line rotating shafts 11 along slide rail 2 directions.
Described square shaped as frame bracing frame 1 is made up of 2 supporting seats 12 and 2 side plates 13, and biside plate 13 be arranged in parallel and its two ends are separately fixed on two supporting seats 12, and wherein said two supporting seats 12 lower ends form described " ㄇ " shape fixing feet 7.
The described second probe cassette fixed mount 4 adopts identical structure with the 3rd probe cassette fixed mount 5: comprise probe locating rack 14, stage clip pressing plate 15, stage clip 16, slide block 17, described stage clip pressing plate 15 is fixed on the top of described probe locating rack 14, described stage clip 16 upper ends are resisted against on the described stage clip pressing plate 15, lower end and the probe 22 upper surface butts that are arranged in the described probe locating rack 14; Described probe locating rack 14 both wings all are connected with the slide block web joint 18 of inverted "L" shaped, and described slide block 17 is fixed on the slide block web joint 18 by screw 19; Be provided with compact heap 20 between described slide block 17 and slide block web joint 18, be provided with compact heap 21 down in described slide block 17 lower ends, at least one slide block web joint 18 of described probe locating rack 14 both wings is provided with dial plate 23; By described slide block 17 the second probe cassette fixed mount 4 and the 3rd probe cassette fixed mount 5 are sleeved on described slide rail 2.
The described first probe cassette fixed mount 3 comprises transversal sonde locating rack 24, pressing plate 25, spring 26, adjusts screw rod 27, screw bolt seat 28, transversal sonde moving slider 29, both wings bottom at described screw bolt seat 28 all is fixed with described transversal sonde moving slider 29, is provided with drag-line compact heap 30 between this transversal sonde moving slider 29 and the screw bolt seat 28; Described adjustment screw rod 27 screws in the screw of described screw bolt seat 28; Described transversal sonde locating rack 24 is fixed on the middle part of described adjustment screw rod 27, described pressing plate 25 is fixed on these transversal sonde locating rack 24 tops, described spring 26 upper ends are resisted against on the described pressing plate 25, lower end and the transversal sonde 31 upper surface butts that are arranged in the described transversal sonde locating rack 24, at least one end of described screw bolt seat 28 both wings is provided with transversal sonde dial plate 32; By described transversal sonde moving slider 29 the first probe cassette fixed mount 3 is sleeved on the slide rail 2.
Described side plate 13 arranged outside have rule 33, and the indication end of wherein said dial plate 23 and transversal sonde dial plate 32 is positioned at the outside of described side plate 13 and points to described rule 33.
Described " ㄇ " shape fixing feet 7 is provided with and tights a bolt 34.
Method of operating of the present utility model:
Adopt the utility model before the scanning of carrying out either party formula, need drag-line is compressed by the pressing plate on the probe cassette fixed mount, especially when using the pairing of the second probe cassette fixed mount and the 3rd probe cassette fixed mount to use, then need as the case may be by have clamping platen in the selection or down clamping platen compress the trend that the drag-line line that is positioned at above or below two fixed mounts is adjusted two fixed mounts, if two fixed mounts are all selected the top or are all selected fixing then two fixed mounts of the drag-line of below then move in the same direction specifically, if then two fixed mounts then can relative motion one on the other.
(1) mother metal flaw detection before the welding
1. 0 ° of probe is fixed on the first probe cassette fixed mount of this scanning equipment, scanning equipment is fixed on rail surface, regulate the first probe cassette fixed mount and laterally adjust screw rod, make probe be positioned at the rail level center, shake the handle on the scanning equipment again, make probe scanning in each 400mm scope of the new welding line of rail end rail surface both sides, check whether there is horizontal defective; Any flaw echo 〉=∮ 2 long cross-drilled hole echoes, wave height reaches 80%, is defective.
2. use single K1 probe (having screw to adopt K0.6) to be contained in the first probe cassette fixed mount adjusted and adjust screw rod in each 400mm scope of the new welding line of rail head end rail surface both sides, check whether there is oblique defective; Any flaw echo 〉=Φ 2 long cross-drilled hole echoes, wave height reaches 80%, is defective.
The mother metal flaw detection must adopt water to be coupled before the above-mentioned welding.
(2) welding back flaw detection
1. determine softened zone length
0 ° of probe is fixed on the first probe cassette fixed mount of scanning equipment, scanning equipment is fixed on rail surface, regulate the adjustment screw rod on the first probe cassette fixed mount, make probe be positioned at the rail level center, shake the rocking handle of scanning equipment again, make probe scanning in each 20mm scope of the new welding line of rail end rail surface both sides, check that softened zone length and grain structure change, mother metal and softened zone acoustic pressure be poor 〉=and that 18dB is the thick entrant sound of grain structure is bad; Softened zone length is defective greater than 20mm.
2. rail head zone on-plane surface defective flaw detection
0 ° of probe is fixed on the first probe cassette fixed mount of scanning equipment, scanning equipment is fixed on rail surface, regulate the adjustment screw rod on the first probe cassette fixed mount, make probe be positioned at the rail level center, shake the rocking handle of scanning equipment again, make probe in rail end rail surface new welding line center and both sides scanning, any flaw echo 〉=Φ 2 long cross-drilled hole echoes, wave height reaches 80%, is defective.
3. rail head area planar defective flaw detection
3.1 K0.6 (no screw adopt K1) probe is fixed on the first probe cassette fixed mount of scanning equipment, scanning equipment is fixed on rail surface, regulate the traversing knob of scanning equipment, make probe be positioned at the rail level center, shake the handle of scanning equipment again, make probe in rail end rail surface newly welds center and each 200mm scope of weld seam both sides, carry out the penetration scanning, check rail head area planar defective, lose ripple with Φ 6 horizontal through hole equivalents and do to declare to hinder sensitivity, calculate the Defect Equivalent size with probe displacement.
3.2 popping one's head in, use monocrystalline K1-K2 in the 200m m scope of rail head both sides, does the scanning of K shape on the first probe cassette fixed mount that is fixed on scanning equipment, any flaw echo 〉=∮ 4 flat-bottom hole echoes, and wave height reaches 80%, is defective;
3.3 use monocline K2.5 probe to be fixed on the first probe cassette fixed mount of scanning equipment, in rail head surface 200mm scope, do the scanning of horizontal sawtooth shape, any flaw echo 〉=∮ 2 long cross-drilled hole echoes, wave height reaches 80%, is defective.
4. web of the rail area planar defective flaw detection
4.1 K0.6 (no screw adopt K1) probe is fixed on the first probe cassette fixed mount of scanning equipment, scanning equipment is fixed on rail surface, regulate the adjustment screw rod on the first probe cassette fixed mount, make probe be positioned at the rail level center, shake the handle of scanning equipment again, make probe in rail end rail surface newly welds center and each 200m m scope of weld seam both sides, carry out the penetration scanning, lose ripple with Φ 6 horizontal through hole equivalents and do to declare to hinder sensitivity, probe displacement is calculated the Defect Equivalent size during according to the mistake ripple.
4.2 K1 probe or K0.8 probe are fixed on the first probe cassette fixed mount of scanning equipment, scanning equipment is fixed on rail surface, regulate the adjustment screw rod on the first probe cassette fixed mount, make probe be positioned at the rail level center, shake the handle of scanning equipment again, make probe in rail end rail surface newly welds center and each 200mm scope of weld seam both sides, carry out the tandem scanning, any flaw echo 〉=Φ 4 flat-bottom hole echoes, wave height reaches 80% to be done to declare to hinder sensitivity, calculates the Defect Equivalent size with probe displacement.
5. the mode that adopts the pairing of the second probe cassette fixed mount and the 3rd probe cassette fixed mount to use, can realize whole welding line flaw detection in vertical direction, fixed transmission is popped one's head on the fixed mount therein, fixing receiving transducer on another fixed mount, connect drag-line by the above-mentioned mode of two fixed mount generation relative motions that makes, shake handle two fixed mounts by far and closely relative motion, can realize the scanning from the minimum point to the peak in vertical direction.
To sum up, the utlity model has following some effect:
1. the utility model is applicable to flash welding, gas pressure welding and thermit welding weld seam supersonic detection.
2. the existing seam inspection instrument of utilization adopts reflection flaw method, penetration defectoscopy butt welded seam to carry out full section flaw detection simultaneously.
3. utilize the utility model V-type tandem, K type tandem checking method can be combined, make repeatedly flaw detection be combined into once flaw detection.
4. the utility model key is to have fixed the scanning position, according to circumstances defines the trend of probe, guarantees that acoustic coupling is good, improves the flaw detection accuracy.
5. the butt welded seam defective is accurately located, quantitatively, and anti-leak-stopping is visited, erroneous judgement.
6. all checking methods should be able to be found Φ 2 horizontal through holes and Φ 3 transversal cracks in the weld seam test block.(mainly being to adopt the first probe cassette fixed mount under the condition of moving towards accuracy is popped one's head in assurance, to realize laterally moving)
7, in the utility model, on each fixed mount, be provided with spring or stage clip, the accuracy that the pressure that the elastic force by spring or stage clip can make probe contact with track is even, the good effectively raising of acoustic coupling is detected a flaw.
In addition, be the domestic nondestructive testing technique that generally adopts as the ultrasonic weld seam inspection technique, during flaw detection ultrasonic pulse is injected weld seam inside, differentiate size and the kind that whether has hurt and hurt thereof in the rail according to reflection echo.Probe is surveyed the hurt of weld seam inside in moving process, reach the purpose of quick nondestructive flaw detection.
1. in order to realize reflection flaw method, penetration defectoscopy and V-type tandem, K type tandem checking method are combined, making repeatedly, flaw detection is combined into disposable flaw detection, in the utility model by a pair of probe cassette fixed mount that is provided with promptly: the second probe cassette fixed mount and the 3rd probe cassette are fixed, by on two probe cassette fixed mounts, install respectively transmitting probe and receiving transducer and by as the drag-line that is connected of above-mentioned adjustment can carry out synchronously parallel moving or mobile in opposite directions mechanical scanning.
2. in order to realize that the butt welded seam defective accurately locatees, quantitatively, anti-leak-stopping is visited, erroneous judgement, need to make according to defect kind, defective orientation in the weld seam, by the optimal detection angle of Theoretical Calculation acquisition, the special-purpose ultrasonic probe of weld seam highly sensitive, that signal to noise ratio (S/N ratio) is high.
The special-purpose ultrasonic probe of the weld seam of made must with the special-purpose defectoscope coupling of weld seam, and can find that Φ 2 horizontal through holes and Φ 3 are horizontal in the weld seam test block.
Claims (7)
1, the scanning equipment that is used for rail seam inspection, it is characterized in that: this scanning equipment comprises square shaped as frame bracing frame (1), slide rail (2), the first probe cassette fixed mount (3), the second probe cassette fixed mount (4), the 3rd probe cassette fixed mount (5) and drag-line (6), and described square shaped as frame bracing frame (1) two ends have " ㄇ " shape fixing feet (7); Described slide rail (2) two ends are fixed on two of described square shaped as frame bracing frame (1), the described first probe cassette fixed mount (3), the second probe cassette fixed mount (4) and the 3rd probe cassette fixed mount (5) are installed in described slide rail (2) and go up and can be free to slide along slide rail (2), at the two ends of described square shaped as frame bracing frame (1) drag-line rotating shaft (11) is housed all, described drag-line (6) is wrapped in the two drag-line rotating shafts (11) along slide rail (2) direction.
2, the scanning equipment that is used for rail seam inspection according to claim 1, it is characterized in that: described square shaped as frame bracing frame (1) is made up of 2 supporting seats (12) and 2 side plates (13), biside plate (13) be arranged in parallel and its two ends is separately fixed on two supporting seats (12), and wherein said two supporting seats (12) lower end forms described " ㄇ " shape fixing feet (7).
3, the scanning equipment that is used for rail seam inspection according to claim 2, it is characterized in that: the described second probe cassette fixed mount (4) adopts identical structure with the 3rd probe cassette fixed mount (5): comprise probe locating rack (14), stage clip pressing plate (15), stage clip (16), slide block (17), described stage clip pressing plate (15) is fixed on the top of described probe locating rack (14), described stage clip (16) upper end is resisted against on the described stage clip pressing plate (15), lower end and probe (22) the upper surface butt that is arranged in the described probe locating rack (14); Described probe locating rack (14) both wings all are connected with the slide block web joint (18) of inverted "L" shaped, and described slide block (17) is fixed on the slide block web joint (18) by screw (19); Between described slide block (17) and slide block web joint (18), be provided with compact heap (20), be provided with compact heap (21) down in described slide block (17) lower end, at least one slide block web joint (18) of described probe locating rack (14) both wings is provided with dial plate (23); By described slide block (17) the second probe cassette fixed mount (4) and the 3rd probe cassette fixed mount (5) are sleeved on described slide rail (2).
4, the scanning equipment that is used for rail seam inspection according to claim 2, it is characterized in that: the described first probe cassette fixed mount (3) comprises transversal sonde locating rack (24), pressing plate (25), spring (26), adjusts screw rod (27), screw bolt seat (28), transversal sonde moving slider (29), both wings bottom at described screw bolt seat (28) all is fixed with described transversal sonde moving slider (29), is provided with drag-line compact heap (30) between this transversal sonde moving slider (29) and the screw bolt seat (28); Described adjustment screw rod (27) screws in the screw of described screw bolt seat (28); Described transversal sonde locating rack (24) is fixed on the middle part of described adjustment screw rod (27), described pressing plate (25) is fixed on this transversal sonde locating rack (24) top, described spring (26) upper end is resisted against on the described pressing plate (25), lower end and transversal sonde (31) the upper surface butt that is arranged in the described transversal sonde locating rack (24), at least one end of described screw bolt seat (28) both wings is provided with transversal sonde dial plate (32); By described transversal sonde moving slider (29) the first probe cassette fixed mount (3) is sleeved on the slide rail (2).
5, according to claim 3 or the 4 described scanning equipments that are used for rail seam inspection, it is characterized in that: described side plate (13) arranged outside has rule (33), and the indication end of wherein said dial plate (23) and transversal sonde dial plate (32) is positioned at the outside of described side plate (13) and points to described rule (33).
6, the scanning equipment that is used for rail seam inspection according to claim 1 is characterized in that: described " ㄇ " shape fixing feet (7) is provided with tight a bolt (34).
7, the scanning equipment that is used for rail seam inspection according to claim 1 is characterized in that: setly at the two ends of described square shaped as frame bracing frame (1) wherein be connected with handle (35) in the drag-line rotating shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079851U CN201392327Y (en) | 2009-03-27 | 2009-03-27 | Scanning device for rail weld seam flaw detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079851U CN201392327Y (en) | 2009-03-27 | 2009-03-27 | Scanning device for rail weld seam flaw detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392327Y true CN201392327Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920079851U Expired - Lifetime CN201392327Y (en) | 2009-03-27 | 2009-03-27 | Scanning device for rail weld seam flaw detection |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017161324A (en) * | 2016-03-09 | 2017-09-14 | 東京計器株式会社 | Flaw detector and flaw detection method |
| WO2018040117A1 (en) * | 2016-08-30 | 2018-03-08 | 广东汕头超声电子股份有限公司 | Method and system for ultrasonic imaging detection of welding seam of dual-array probe-based steel-rail |
| CN114878692A (en) * | 2022-07-12 | 2022-08-09 | 广东汕头超声电子股份有限公司 | Guided wave probe comprehensive test method and test platform |
-
2009
- 2009-03-27 CN CN200920079851U patent/CN201392327Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017161324A (en) * | 2016-03-09 | 2017-09-14 | 東京計器株式会社 | Flaw detector and flaw detection method |
| WO2018040117A1 (en) * | 2016-08-30 | 2018-03-08 | 广东汕头超声电子股份有限公司 | Method and system for ultrasonic imaging detection of welding seam of dual-array probe-based steel-rail |
| CN114878692A (en) * | 2022-07-12 | 2022-08-09 | 广东汕头超声电子股份有限公司 | Guided wave probe comprehensive test method and test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100127 Effective date of abandoning: 20090327 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20100127 Effective date of abandoning: 20090327 |