CN203979211U - A kind of drum of safety brake is stopped - Google Patents
A kind of drum of safety brake is stopped Download PDFInfo
- Publication number
- CN203979211U CN203979211U CN201420464208.4U CN201420464208U CN203979211U CN 203979211 U CN203979211 U CN 203979211U CN 201420464208 U CN201420464208 U CN 201420464208U CN 203979211 U CN203979211 U CN 203979211U
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- CN
- China
- Prior art keywords
- drive plate
- brake
- brake block
- roller
- drum
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- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of drum of safety brake to be stopped, and belongs to Vehicular brake device field, has solved the poor problem of drum brakes braking effect.A kind of drum of safety brake is stopped, comprise housing, brake block assembly and the drive unit that drives described brake block assembly to move, described brake block assembly comprises at least two brake blocks, between the end of adjacent two brake blocks, by elastic element, connect, described drive unit comprises position-arresting disk and at least one drive plate can relative limit dish being rotated, described position-arresting disk and described drive plate arranged stacked, described position-arresting disk edge is provided with restraining groove, in described restraining groove, be provided with roller, the sidewall of described roller is provided with some driving tooths, described roller and described drive plate mesh by tooth-shape structure, described drive plate rotarily drives the inner side surface of described roller pushing and pressing brake block.
Description
Technical field
The utility model relates to a kind of drum of safety brake to be stopped, and belongs to Vehicular brake device field.
Background technique
Drum brakes is a kind of conventional mode of braking of vehicle.Existing drum brakes comprises housing, is provided with two brake blocks and pushing block in housing, and pushing block promotes the outwards mobile housing that is adjacent to of brake block, and and housing between produce friction so that housing stops operating.After wheel contacts with brake block, will provide a radial force to brake block, because brake block contacts with pushing block, radial force also can indirectly-acting on pushing block, existing pushing block can only be done traveling priority, after radial force that pushing block is subject to is excessive, pushing block will fracture.And existing pushing block just promotes brake block and moves in end, brake block does not probably contact wheel at the outer side surface away from pushing block, thereby causes the area of contact of brake block and wheel too small, braking effect variation.
Summary of the invention
Problem to be solved in the utility model is stopped with regard to being to provide a kind of drum of safety brake, has solved the poor problem of drum brakes braking effect.
For addressing the above problem, the utility model provides following technological scheme: a kind of drum of safety brake is stopped, comprise housing, brake block assembly and the drive unit that drives described brake block assembly to move, described brake block assembly comprises at least two brake blocks, between the end of adjacent two brake blocks, by elastic element, connect, described drive unit comprises position-arresting disk and at least one drive plate can relative limit dish being rotated, described position-arresting disk and described drive plate arranged stacked, described position-arresting disk edge is provided with restraining groove, in described restraining groove, be provided with roller, the sidewall of described roller is provided with some driving tooths, described roller and described drive plate mesh by tooth-shape structure, described drive plate rotarily drives the inner side surface of described roller pushing and pressing brake block.
Brake block of the present utility model, promotes roller by drive plate brake block is outwards moved, and different brake blocks synchronously moves towards wheel direction, and contacts and produce friction with the wheel of rotation.Roller moves radially except synchronously promoting brake block, and roller has also increased the join strength between brake block and drive plate.After brake block just contacts with the wheel of High Rotation Speed, wheel will provide a radial force to brake block, brake block can be by radial force indirect transfer to roller, roller is subject to after radial force, thereby can be by rotating the extruding force weakening from brake block, this structure can effectively increase the braking effect that drum is stopped, and improves the braking safe performance that drum is stopped, and rouses the working life of stopping.After drive plate and position-arresting disk relatively rotate, roller is just subject to an active force, making roller be close to ratchet moves, if the frictional force between roller and ratchet is inadequate, roller will skid, but does not have relative drive plate occurrence positions to change, driving tooth is set on roller, roller and ratchet engagement, this structure can be avoided roller generation rotation, so that roller steadily promotes brake block, moves.
Further, at least one described drive plate is arranged on described position-arresting disk below.
Further, at least one described drive plate is arranged on described position-arresting disk top.
Further, described drive plate is the ratchet with ratchet, and described ratchet is positioned at the position of the corresponding described brake block of ratchet, is provided with the driven tooth with described driving tooth engagement on described ratchet sidewall, and described drive plate promotes described roller by described ratchet.Drive plate is ratchet, in drive plate relative limit dish rotation process, ratchet circumferentially moves with drive plate, roller moves towards tooth top direction from the tooth root of ratchet, and promote brake block and move to housing inner side surface direction, roller is a mobile segment distance on ratchet, the inner side surface of the outer side surface contact wheel of brake block, rotating wheel produces friction with brake block after touching brake block, thereby reduces the rotating speed of wheel.By roller, promote brake block and move, so that different brake blocks is synchronous outwards mobile, contacts with wheel, thereby effectively increased the area of contact between brake block and wheel, improved the braking effect of brake block.On the sidewall of ratchet, driven tooth is set, thereby makes ratchet and roller engagement driving, so that roller steadily moves radially.
Further, the inner side surface of described brake block and described roller mesh by tooth-shape structure.This structure avoids the frictional force between roller and the inner side surface of brake block inadequate, and causes roller to skid on the inner side surface of brake block.
Further, the inner side surface of described brake block is provided with the tooth that coordinates meshing with described driving tooth.
Further, described drive unit also comprises the spacing cover plate that is positioned at described position-arresting disk top.After the raw circumferentially rotation of drive plate relative limit hair updo, drive plate can apply an active force radially to roller, position-arresting disk can apply a reaction force radially to roller, drive plate and position-arresting disk impose on after roller radial force, active force and reaction force roller axially on can produce a component, component can drive roller to move axially.Now, the bottom end of spacing cover plate, by contacting the top end of roller, can avoid roller to exit in groove or restraining groove.
Further, described spacing cover plate, described drive plate and the pin of described position-arresting disk by axial setting are connected, and described position-arresting disk is provided with arcuate socket, and described pin is through described arcuate socket.Pin holds together spacing cover plate, drive plate and position-arresting disk, avoid spacing cover plate, drive plate and position-arresting disk three to move to axial and separated, pin has limited the angle of swing of position-arresting disk through arcuate socket, thereby avoid position-arresting disk angle of swing excessive, and cause roller to roll, thereby affect the braking ability of brake block between a plurality of ratchets.
Further, described shell bottom wall is provided with position-limited lever, and described position-limited lever top is provided with boss, and described drive plate is provided with restraining groove and dodges groove, described position-limited lever is through described restraining groove, and the width of described boss is dodged between groove groove width and described restraining groove groove width between described.Position-limited lever defines the revolvable angular range of the relative housing of drive plate.If drive plate angle of swing is much, roller will move in two gaps between adjacent brake block, thus the active force that causes brake block to lose moving radially, and under the effect of elastic element, brake block can move and separated with wheel towards drive unit direction.Boss can be dodged in groove so that position-limited lever inserts through dodging groove, and after drive plate rotates in a circumferential direction, position-limited lever can insert in restraining groove, and now, can the conflict upper-end surface of drive plate of boss, avoids drive plate to move axially.
Further, described shell bottom wall is provided with the first guide pad, and described brake block bottom end is provided with the second guide pad, and the side laminating of the side of described the first guide pad and described the second guide pad, guides the radial motion of described brake block.After the side of the side of the first guide pad and the second guide pad is bonded to each other, define the track that moves radially of brake block, this structure avoids brake block to rotate in a circumferential direction, and mutually staggers with roller.
Further, described drum is stopped and is also comprised the rocking arm being rotationally connected with on described housing, and one end that described rocking arm stretches in described housing is connected with gear, and described gear is meshed with described drive plate.Rocking arm drives drive plate rotation, so that the life of drive plate relative limit hair updo rotates in a circumferential direction.
Accompanying drawing explanation
Fig. 1 is the erection drawing that the drum of a kind of safety brake of the utility model is stopped;
Fig. 2 is the explosive view that the drum of a kind of safety brake of the utility model is stopped;
Fig. 3 is the part assembly drawing that the drum of a kind of safety brake of the utility model is stopped;
Fig. 4 is the structural representation of the utility model drive unit.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of drum of safety brake is stopped, comprise housing 1, on housing 1, be provided with brake block assembly 2, drive unit and rocking arm 10, brake block assembly 2 comprises first brake sheet 21, the second brake block 22 and the 3rd brake block 23, first brake sheet 21, the second brake block 22 and the 3rd brake block 23 are arc brake sheet, and the shape and structure of first brake sheet 21, the second brake block 22 and the 3rd brake block 23 is in full accord, and three can replace use mutually.First brake sheet 21, the second brake block 22 and the 3rd brake block 23 are evenly arranged on housing 1, and the center of circle of first brake sheet 21, the center of circle of the second brake block 22 and the coincidence of the center of circle of the 3rd brake block 23 are gone up on one point.The bottom end of first brake sheet 21 links together by the bottom end elasticity of spring 9 and the second brake block 22, the bottom end of first brake sheet 21 links together by the bottom end elasticity of spring 9 and the 3rd brake block 23, and the bottom end of the second brake block 22 links together by the bottom end elasticity of spring 9 and the 3rd brake block 23.
With reference to Fig. 1, Fig. 2 and Fig. 3, drive unit is disposed with spacing cover plate 6, the second drive plate 5, position-arresting disk 4 and the first drive plate 3 from top to bottom, pin 7 runs through spacing cover plate 6, the second drive plate 5, position-arresting disk 4 and the first drive plate 3 successively, spacing cover plate 6, the second drive plate 5, position-arresting disk 4 and the first drive plate 3 are fixed together, avoid a part or several part in spacing cover plate 6, the second drive plate 5, position-arresting disk 4 and the first drive plate 3 to move to axial.The edge of the first drive plate 3 is provided with the first driven tooth 32 and the first ratchet 31, 31 adjacent of the first ratchets are provided with the first groove 311, on the first drive plate 3, be provided with six the first grooves 311, six the first grooves 311 are evenly distributed in the first drive plate and make progress for 3 weeks, on position-arresting disk 4, be provided with six restraining grooves 41, the degree of depth of restraining groove 41 is greater than the degree of depth of the first groove 311, six respectively corresponding six the first grooves 311 of restraining groove 41, the edge of the second drive plate 5 is provided with the second driven tooth and the second ratchet 51, 51 adjacent of the second ratchets are provided with the second groove 511, on the second drive plate 5, be provided with six the second grooves 511, corresponding the first driven tooth 32 of the second driven tooth, six corresponding six the first grooves 311 of the second groove 511, shape and the structure of the shape of the second drive plate 5 and structure and the first drive plate 3 are in full accord, the two can be replaced mutually.Between drive unit and brake block assembly 2, be provided with six rollers 8, roller 8 can insert the first groove 311, restraining groove 41 and the second groove 511 simultaneously, the side of roller 8 contacts the sidewall of the sidewall of the first groove 311, the sidewall of restraining groove 41 and the second groove 511, and the top end of roller 8 contacts the bottom end of spacing cover plate 6.
With reference to Fig. 2, on rocking arm 10, be provided with gear 101, gear 101 and the first driven tooth 32 engagements, and gear 101 and the engagement of the second driven tooth.
With reference to Fig. 2 and Fig. 3, working principle of the present utility model, in the time of need to braking, the central shaft of gear 101 of take is initial point rotating arm 10; rocking arm 10 driven gears 101 rotations; gear 101 drives the first driven tooth 32 and the rotation of the second driven tooth, and the first driven tooth 32 drives the first drive plates 3 to be rotated counterclockwise, and the second driven tooth drives the second drive plate 5 to be rotated counterclockwise.Relative the first drive plate 3 and the second drive plate 5, position-arresting disk 4 does not rotate or rotational speed is less than the rotational speed of the first drive plate 3 and the rotational speed of the second drive plate 5, because position-arresting disk 4 is different from the rotational speed of the first drive plate 3 and the second drive plate 5, restraining groove 41 will stagger in the first groove 311 and the second groove 511, now, the sidewall contact of the first groove 311 and the second groove 511 and roller 8, and for the active force in 8 one diametric(al)s of roller is provided, the direction of active force is identical with the sense of rotation of the second drive plate 5 with the sense of rotation of the first drive plate 3, restraining groove 41 also with the sidewall contact of roller 8, and for roller 8 provides the active force in a diametric(al), the direction of active force is contrary with the sense of rotation of the first drive plate 3.The active force that gives roller 8 due to restraining groove 41 is less than the active force that the first drive plate 31 and the second drive plate 51 give roller 8, and roller 8 exits in the first groove 311 and the second groove 511.Roller 8 is in exiting the process of the first groove 311 and the second groove 511, contacts side surfaces first brake sheet 21, the second brake block 22 and the 3rd brake block 23 threes' of roller 8 inner side surface, and promoting first brake sheet 21, the second brake block 22 and the 3rd brake block 23 synchronously moves to wheel direction, thereby make first brake sheet 21, the second brake block 22 and the 3rd brake block 23 contact and produce friction with the wheel of rotation, so that reduce the rotating speed of wheel.
With reference to Fig. 2 and Fig. 3, when wheel travels, the central shaft of gear 101 of take is initial point rotating arm 10; rocking arm 10 driven gears 101 rotations; gear 101 drives the first driven tooth 32 and the rotation of the second driven tooth; the first driven tooth 32 drives the first drive plates 3 to turn clockwise, and the second driven tooth drives the second drive plate 5 to turn clockwise.Relative the first drive plate 3 and the second drive plate 5, position-arresting disk 4 does not rotate or rotational speed is less than the rotational speed of the first drive plate 3 and the rotational speed of the second drive plate 5, because position-arresting disk 4 is different from the rotational speed of the first drive plate 3 and the second drive plate 5, restraining groove 41 will slowly coincide together in the first groove 311 and the second groove 511.In the process overlapping with the first groove 311 and the second groove 511 at restraining groove 41, roller 8 can move radially and insert in the first groove 311 and the second groove 511, first brake sheet 21, the second brake block 22 and the 3rd brake block 23 are after the thrust losing in roller 8 diametric(al)s, spring 9 shortens contraction, drive first brake sheet 21, the second brake block 22 to move with roller 8 with the 3rd brake block 23, thereby separated with wheel, wheel can be rotated again.
With reference to Fig. 3, two rollers 8 are conflicted with the inner side surface of brake block 21, and be symmetrically distributed in the both sides of brake block 21 central shafts, two rollers 8 on brake block 22 are identical with two roller 8 mounting points on brake block 21 with two roller 8 mounting points on brake block 23.
Roller on brake block can be set to three, three rollers conflict the respectively two ends of brake block inner side surface and the neutral position of brake block inner side surface; Roller on brake block can be set to four, evenly the conflict inner side surface of brake block of four rollers; Roller on brake block also can be set to five, the inner side surface of five irregular conflict brake blocks of roller.In Vehicle Driving Cycle process, each above-mentioned roller inserts corresponding the first groove, restraining groove and the second groove simultaneously.According to the length change of roller, the quantity of drive plate also can change thereupon.If roller is shorter, drive unit just arranges a drive plate, and drive plate can be arranged on the top of position-arresting disk, also can be arranged on the below of position-arresting disk.If roller is longer, three drive plates can be set on drive unit, wherein two drive plates are arranged on the top of position-arresting disk, and remaining next drive plate is arranged on the below of position-arresting disk.If a drive plate is set on drive unit, and drive plate is arranged on position-arresting disk when below, and spacing cover plate will be arranged on position-arresting disk top.
With reference to Fig. 4, the first ratchet 31 is connected with the first adjacent groove 311 arc transition, and be provided with the 3rd driven tooth 312 on the arc section of the first ratchet 31 and adjacent the first groove 311 joints, the sidewall of roller 8 is provided with some driving tooths 81 of axial setting, driving tooth 81 and the 3rd driven tooth 312 engagements, in the first drive plate 3 relative limit dish 4 rotation processes, roller 8 can move around the first ratchet 31 sidewall generation axial-rotations.The second ratchet 51 is connected with the second adjacent groove 511 arc transition, and be provided with the 4th driven tooth 512 on the arc section of the second ratchet 51 and adjacent the second groove 511 joints, the sidewall of roller 8 is provided with some driving tooths 81 of axial setting, driving tooth 81 and the 4th driven tooth 512 engagements, in the second drive plate 5 relative limit dish 4 rotation processes, roller 8 can move around the second ratchet 51 sidewall generation axial-rotations.
On the inner side surface of brake block, be provided with the tooth that coordinates meshing with driving tooth, inner side surface and the roller of brake block mesh by tooth-shape structure.
With reference to Fig. 2, on spacing cover plate 6, be provided with the first positioning hole coordinating with pin 7, on the second drive plate 5, be provided with the second fixed hole coordinating with pin 7, on position-arresting disk 4, be provided with the arcuate socket coordinating with pin 7, on the first drive plate 3, be provided with the 3rd positioning hole coordinating with pin 7.Position-arresting disk 4 can rotate in a circumferential direction by arcuate socket on pin 7, and arcuate socket defines the angle of position-arresting disk 4 rotations.
Certainly position-arresting disk, except offering arcuate socket, also can arrange a breach, and breach facilitates pin to pass position-arresting disk, avoids again and dowel contact, thereby affect position-arresting disk, rotates in a circumferential direction.
With reference to Fig. 2 and Fig. 3, the bottom upper surface of housing 1 is provided with six the first guide pads 11, the first 11 two of guide pads are one group, the first guide pad 11 is parallel to each other on the same group, two adjacent the first guide pads 11 are not on the same group arranged to splayed shape, two adjacent the first guide pads 11 are on the same group mutually not close near one end of the second drive plate 3, away from one end of the second drive plate 3 mutually away from.First brake sheet 21, the second brake block 22 and the 3rd brake block 23 be corresponding one group of first guide pad 11 respectively, take first brake sheet 21 as example, on the bottom end of first brake sheet 21, be provided with two the second guide pads that are parallel to each other, the right flank of the first guide pad 11 that the left surface of one of them the second guide pad is corresponding with it is parallel to each other and fits together, and the left surface of the right flank of another the second guide pad and above-mentioned the first guide pad 11 another the first guide pad 11 is on the same group parallel to each other and fits together.The second guide pad and the second guide pad layout on first brake sheet 21 on the second guide pad on the second brake block 22 and the 3rd brake block 23 are in full accord.
With reference to Fig. 2, the second drive plate 3 is provided with the restraining groove 34 of circumferential setting, is provided with and dodges groove 33 on the cell wall of restraining groove 34, and the center line of restraining groove 34 is positioned on the same circular arc line of the second drive plate 3 with the center line of dodging groove 33.The bottom upper surface of housing 1 is provided with the position-limited lever 13 coordinating with restraining groove 34, and the top end of position-limited lever 13 is provided with boss 131, and the diameter of boss 131 is greater than the width of restraining groove 34.Boss 131 passes dodges groove 33, so that in position-limited lever 13 insertion restraining grooves 34, second drive plate 3 that rotates in a circumferential direction, position-limited lever 13 inserts in restraining grooves 34, and now, the bottom end of boss 131 contacts the top end of the second drive plate 3.
With reference to Fig. 2, housing 1 bottom upper surface is provided with on positive stop lug boss 12, the second drive plates 3 and is provided with the through hole coordinating with positive stop lug boss 12, and the second drive plate 3 is enclosed within on positive stop lug boss 12, thereby avoids the second drive plate 3 to move radially in housing 1.
With reference to Fig. 2, one end of rocking arm 10 is provided with connecting rod 102, and connecting rod 102 runs through the diapire of housing 1, and gear 101 is arranged on the sidewall that connecting rod 102 is positioned at housing 1 one end.
On the first drive plate, offer first through hole with the first drive plate concentric, be positioned on the sidewall of the first drive plate of the first through hole the first driven tooth is circumferentially set, on the second drive plate, offer second through hole with the second drive plate concentric, be positioned on the sidewall of the second drive plate of the second through hole the second driven tooth be circumferentially set, on housing, arrange one with the first driven tooth and the second driven tooth meshed gears simultaneously.This structure also can drive the first drive plate and the rotation of the second drive plate.
The above, be only embodiment of the present utility model, but the utility model protection domain is not limited to this, and those of ordinary skill in the art should be understood that the utility model includes but not limited to accompanying drawing and the content of describing in embodiment above.Any modification that does not depart from function and structure principle of the present utility model all will be included in the scope of claims.
Claims (10)
1. the drum of a safety brake is stopped, comprise housing, brake block assembly and the drive unit that drives described brake block assembly to move, it is characterized in that: described brake block assembly comprises at least two brake blocks, between the end of adjacent two brake blocks, by elastic element, connect, described drive unit comprises position-arresting disk and at least one drive plate can relative limit dish being rotated, described position-arresting disk and described drive plate arranged stacked, described position-arresting disk edge is provided with restraining groove, in described restraining groove, be provided with roller, the sidewall of described roller is provided with some driving tooths, described roller and described drive plate mesh by tooth-shape structure, described drive plate rotarily drives the inner side surface of described roller pushing and pressing brake block.
2. the drum of a kind of safety brake according to claim 1 is stopped, and it is characterized in that: at least one described drive plate is arranged on described position-arresting disk below.
3. the drum of a kind of safety brake according to claim 1 is stopped, and it is characterized in that: at least one described drive plate is arranged on described position-arresting disk top.
4. according to the drum of a kind of safety brake described in claim 1 or 2 or 3, stop, it is characterized in that: described drive plate is the ratchet with ratchet, and described ratchet is positioned at the position of the corresponding described brake block of ratchet, on described ratchet sidewall, be provided with the driven tooth meshing with described driving tooth, described drive plate promotes described roller by described ratchet.
5. according to the drum of a kind of safety brake described in claim 1 or 2 or 3, stop, it is characterized in that: the inner side surface of described brake block and described roller mesh by tooth-shape structure.
6. the drum of a kind of safety brake according to claim 5 is stopped, and it is characterized in that: the inner side surface of described brake block is provided with the tooth that coordinates with described driving tooth engagement.
7. the drum of a kind of safety brake according to claim 1 is stopped, and it is characterized in that: described drive unit also comprises the spacing cover plate that is positioned at described position-arresting disk top.
8. the drum of a kind of safety brake according to claim 7 is stopped, and it is characterized in that: described spacing cover plate, described drive plate and the pin of described position-arresting disk by axial setting are connected, and described position-arresting disk is provided with arcuate socket, and described pin is through described arcuate socket.
9. according to the drum of a kind of safety brake described in claim 1 or 2 or 3, stop, it is characterized in that: described shell bottom wall is provided with position-limited lever, described position-limited lever top is provided with boss, described drive plate is provided with restraining groove and dodges groove, described position-limited lever is through described restraining groove, and the width of described boss is dodged between groove groove width and described restraining groove groove width between described.
10. according to the drum of a kind of safety brake described in claim 1 or 2 or 3, stop, it is characterized in that: described shell bottom wall is provided with the first guide pad, described brake block bottom end is provided with the second guide pad, the side laminating of the side of described the first guide pad and described the second guide pad, guides the radial motion of described brake block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464208.4U CN203979211U (en) | 2014-08-15 | 2014-08-15 | A kind of drum of safety brake is stopped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464208.4U CN203979211U (en) | 2014-08-15 | 2014-08-15 | A kind of drum of safety brake is stopped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979211U true CN203979211U (en) | 2014-12-03 |
Family
ID=51976660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464208.4U Withdrawn - After Issue CN203979211U (en) | 2014-08-15 | 2014-08-15 | A kind of drum of safety brake is stopped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179852A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Safety braking drum brake |
-
2014
- 2014-08-15 CN CN201420464208.4U patent/CN203979211U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179852A (en) * | 2014-08-15 | 2014-12-03 | 长兴华亿机电有限公司 | Safety braking drum brake |
| CN104179852B (en) * | 2014-08-15 | 2016-09-07 | 长兴华亿机电有限公司 | The drum of a kind of safety arrestment is stopped |
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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: 20141203 Effective date of abandoning: 20160907 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |