CN204190900U - A kind of wall-hanging loudspeaker frame - Google Patents
A kind of wall-hanging loudspeaker frame Download PDFInfo
- Publication number
- CN204190900U CN204190900U CN201420570540.9U CN201420570540U CN204190900U CN 204190900 U CN204190900 U CN 204190900U CN 201420570540 U CN201420570540 U CN 201420570540U CN 204190900 U CN204190900 U CN 204190900U
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- China
- Prior art keywords
- pipe
- down tube
- audio amplifier
- wall
- fixed head
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- 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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Abstract
A kind of wall-hanging loudspeaker frame, the support comprising fixed head and be rotationally connected with fixed head horizontal and vertical, described support comprises cross-brace pipe and skewed horizontal load pipe, described skewed horizontal load pipe is hinged away from one end of fixed head and the below of cross-brace pipe, described cross-brace pipe comprises can the supervisor of relative sliding fit and adjustable pipe, described skewed horizontal load pipe comprises can the fixing down tube of relative sliding fit and movable down tube, described cross-brace pipe is provided with audio amplifier stationary pipes away from one end of fixed head, at least described supervisor and adjustable pipe the two one of on be provided with the first stopping means, at least described fixing down tube and movable down tube the two one of on be provided with the second stopping means.This wall-hanging loudspeaker frame both can horizontally rotate, also vertically rotating, also adjustable audio amplifier from wall distance, the use of audio amplifier of different size, different sound field demand can be met.
Description
Technical field
The utility model relates to musical instrument fitting field, is specifically related to a kind of wall-hanging loudspeaker frame.
Background technology
Notification number is the utility model patent of CN2293928Y, disclose a kind of wall-hanging loudspeaker frame, as shown in Figure 1, this sound equipment support comprises base plate 1a, transfer roller 2a, elevation-angle regulator 3a, upper arm 4a, base plate 1a becomes U-shaped with elevation-angle regulator 3a, transfer roller 2a is by the two ends of the rotating shaft 6a connecting bottom board 1a of band screw, transfer roller 2a connects elevation-angle regulator 3a by fixed rotating shaft 10a, upper arm 4a spirality is also vertically fixed on elevation-angle regulator 3a, the hook 5a that its tail end band one is vertical, audio amplifier hangs on hook 5a, elevation-angle regulator 3a is provided with angular adjustment screw 8a away from one end of fixed rotating shaft 10a, holding screw nail 9a, base plate is provided with at least three aperture 7a.Unscrew the rotating shaft 6a of band screw, transfer roller can do 0 ° ~ 180 ° rotations, the rotating shaft 6a tightening band screw after regulating required angle can fix this angle, elevation-angle regulator 3a can do 0 ° ~ 60 ° rotations along fixed rotating shaft 10a, the anglec of rotation of elevation-angle regulator 3a is controlled by angular adjustment screw 8, and this angle is fixed up by setscrew 9.This wall-hanging loudspeaker frame can do and horizontally rotate or vertical rotation, local directed complete set can be carried out to the position of audio amplifier, described horizontally rotating refers to that the rotation direction of sound equipment support is in same level, and when described vertical rotation refers to the rotation in sound equipment support Relative vertical direction and rotates and corner formed by vertical direction is in the scope of 0 ° ~ 180 °.
But this wall-hanging loudspeaker frame can only horizontally rotate and vertical rotation, the brachium that can not carry out upper arm 4 regulates, cannot regulate audio amplifier from wall distance, not only cannot meet the installation requirements of the audio amplifier of different size, and make the adjusting range of the locus of audio amplifier very limited, be difficult to the demand of the different sound fields met when audio amplifier uses, the scope of application is narrower.
In prior art figure: 1a-base plate, 2a-transfer roller, 3a-elevation-angle regulator, 4a-upper arm, 5a-links up with, 6a-rotating shaft, 7a-aperture, 8a-angular adjustment screw, and 9a-holding screw is followed closely, 10a-fixed rotating shaft.
In the utility model figure: 1-fixed head, 2-is responsible for, 3-adjustable pipe, 4-fixes down tube, the movable down tube of 5-, 6-audio amplifier stationary pipes, 7-first connector, 8-second connector, 9-knob, 10-sleeve pipe, 11-shell fragment, 12,20,21-spacing hole, 13-positioning convex, 14,22,23-installing hole, 16-connecting plate, 17-support, 18-cross-brace pipe, 19-skewed horizontal load pipe.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of adjustable audio amplifier from wall distance, carry out the wall-hanging loudspeaker frame of multi-faceted locus adjustment, can meet the user demand of audio amplifier of different size, different sound field.
Technical solution of the present utility model is: provide a kind of wall-hanging loudspeaker frame, comprise the fixed head being provided with metope erecting device and the support be rotationally connected with fixed head horizontal and vertical, it is characterized in that: described support comprises the cross-brace pipe be connected with fixed head upper end and the skewed horizontal load pipe be connected with fixed head lower end, described skewed horizontal load pipe is hinged away from one end of fixed head and the below of cross-brace pipe, described cross-brace pipe comprises can the supervisor of relative sliding fit and adjustable pipe, described skewed horizontal load pipe comprises can the fixing down tube of relative sliding fit and movable down tube, described cross-brace pipe is provided with audio amplifier stationary pipes away from one end of fixed head, at least described supervisor and adjustable pipe the two one of on be provided with the first stopping means, at least described fixing down tube and movable down tube the two one of on be provided with the second stopping means.
After adopting above structure, the utility model has the following advantages:
This wall-hanging loudspeaker frame both can horizontally rotate, also vertically rotating, and its cross-brace pipe is set to the stretching structure of two-part, adjustable audio amplifier from wall distance, not only can meet the installation requirements of the audio amplifier of different size, and the adjusting range of the locus of audio amplifier is increased greatly, can meet the demand of different sound fields when audio amplifier uses, the scope of application is wider.
As preferably, described cross-brace pipe away from one end of fixed head and audio amplifier stationary pipes hinged and be provided with the 3rd stopping means in hinged place.Arrange audio amplifier stationary pipes and cross-brace pipe is hinged, adjustable audio amplifier stationary pipes rotational angle in vertical direction, make the adjusting range of the locus of audio amplifier larger, stopping means is used for audio amplifier stationary pipes being fixed after adjusting to suitable angle.
As preferably, described supervisor is linked in outside adjustable pipe, and is provided with sleeve pipe in both junctions.This setting can make adjustable pipe supervisor in be free to slide, for adjust audio amplifier from wall distance, simple and reliable for structure.
As preferably, described first stopping means is the knob for supervisor and adjustable pipe being tightened locking be arranged on supervisor.Arranging knob can conveniently tighten fixing by supervisor and adjustable pipe.
As preferably, described first stopping means also comprises several spacing holes of shell fragment and the setting of supervisor both sides, described shell fragment is provided with the positioning convex of two clamping spacing holes, shell fragment is arranged in adjustable pipe by the installing hole on positioning convex and adjustable pipe, and slip adjustable pipe can by spacing for positioning convex in the different spacing holes of supervisor.This is arranged so that the first stopping means also has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the length of cross-brace pipe.
As preferably, described fixing down tube is linked in outside movable down tube, and is provided with sleeve pipe in both junctions.This setting can make movable down tube be free to slide in fixing down tube, regulates the length of skewed horizontal load pipe, thus regulates the angle of skewed horizontal load pipe vertical rotation, the final angle changing audio amplifier vertical rotation, simple and reliable for structure.
As preferably, described second stopping means is the knob for fixing down tube and movable down tube being tightened locking be arranged on fixing down tube.Arranging knob can conveniently tighten fixing by fixing down tube and movable down tube.
As preferably, described second stopping means also comprises several spacing holes of shell fragment and the setting of fixing down tube both sides, described shell fragment is provided with the positioning convex of two clamping spacing holes, shell fragment is arranged in movable down tube by the installing hole on positioning convex and movable down tube, and slip activity down tube can by spacing for positioning convex in the different spacing holes of fixing down tube.This is arranged so that the second stopping means also has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the length of skewed horizontal load pipe.
As preferably, described cross-brace pipe is provided with the connecting plate of two parallel connections away from one end of fixed head, and audio amplifier Duct fixing clamp is between two connecting plates and be hinged with two connecting plates.Adopt two connecting plates cross-brace pipe and audio amplifier stationary pipes to be hinged, structure is simple, and reliably can realize the vertical rotation of audio amplifier stationary pipes, can regulate the angle of audio amplifier vertical rotation further.
As preferably, described 3rd stopping means comprises several spacing holes be interconnected that shell fragment and two connecting plates are arranged respectively, described shell fragment is provided with the positioning convex of two clamping spacing holes, shell fragment is arranged in audio amplifier stationary pipes by the installing hole on positioning convex and audio amplifier stationary pipes, and rotating audio amplifier stationary pipes can by spacing for positioning convex in the different spacing hole of connecting plate.Rotating audio amplifier stationary pipes can by spacing for positioning convex in the different spacing hole of connecting plate, this stopping means also has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the angle of audio amplifier stationary pipes vertical rotation, and adopt hinged connected mode between cross-brace pipe and audio amplifier stationary pipes, make adjust after audio amplifier stationary pipes can by reliably spacing.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of existing wall-hanging loudspeaker frame;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is structural representation of the present utility model;
Embodiment
Below in conjunction with accompanying drawing, and the utility model is described further in conjunction with the embodiments.
Embodiment:
As Fig. 2, shown in Fig. 3, a kind of wall-hanging loudspeaker frame, comprise the fixed head 1 being provided with metope erecting device and the support 17 be rotationally connected with fixed head 1 horizontal and vertical, described support 17 comprises the cross-brace pipe 18 be connected with fixed head 1 upper end and the skewed horizontal load pipe 19 be connected with fixed head 1 lower end, described cross-brace pipe 18 is connected with fixed head with the second connector 8 respectively by the first connector 7 with skewed horizontal load pipe 19, first connector 7 is identical with the structure of the second connector 8, the side of the first connector 7 is connected with one end vertical rotation of cross-brace pipe 18, opposite side horizontally rotates with the upper end of fixed head 1 and is connected, such cross-brace pipe 18 opposing fixed plate 1 both can horizontally rotate, also vertically rotating, the side of the second connector 8 is connected with one end vertical rotation of skewed horizontal load pipe 19, opposite side horizontally rotates with the lower end of fixed head 1 and is connected, such skewed horizontal load pipe 19 opposing fixed plate 1 both can horizontally rotate, also vertically rotating, cross-brace pipe 18 and skewed horizontal load pipe 19 are two-part stretching structure, cross-brace pipe 18 comprises can the supervisor 2 of relative sliding fit and adjustable pipe 3, skewed horizontal load pipe 19 comprises can the fixing down tube 4 of relative sliding fit and movable down tube 5, skewed horizontal load pipe 19 is hinged away from one end of fixed head 1 and the below of cross-brace pipe 18, skewed horizontal load pipe 19 can be hinged or hinged with the below of adjustable pipe with the below of the supervisor 2 of cross-brace pipe, but preferably carry out hinged with the below of supervisor 2, because like this, skewed horizontal load pipe 19 adjusting angle is in vertical direction larger, at least described supervisor 2 and adjustable pipe 3 the two one of on be provided with the first stopping means, being used for the length of cross-brace pipe 18 after by adjustment fixes, at least described fixing down tube 4 and movable down tube 5 the two one of on be provided with the second stopping means, being used for the length of skewed horizontal load pipe 19 after by adjustment fixes, so far a complete support 17 constitutes, audio amplifier stationary pipes 6 is arranged on one end away from fixed head 1 of cross-brace pipe 18, audio amplifier is enclosed within audio amplifier stationary pipes 6.
During use, the horizontal level of audio amplifier can be changed by horizontally rotating support 17, by change the adjustable in length audio amplifier of cross-brace pipe 18 from wall distance, and be fixed up by the length of the first stopping means by cross-brace pipe 18, the angle of skewed horizontal load pipe 19 vertical rotation can be changed by the length changing skewed horizontal load pipe 19, the angle of final change audio amplifier vertical rotation, and be fixed up by the length of the second stopping means by skewed horizontal load pipe 19.
This wall-hanging loudspeaker frame both can horizontally rotate, also vertically rotating, and its cross-brace pipe 18 is set to the stretching structure of two-part, adjustable audio amplifier from wall distance, not only can meet the installation requirements of the audio amplifier of different size, and the adjusting range of the locus of audio amplifier is increased greatly, can meet the demand of different sound fields when audio amplifier uses, the scope of application is wider.
As preferably, described cross-brace pipe 18 away from one end of fixed head 1 and audio amplifier stationary pipes 6 hinged and be provided with the 3rd stopping means in hinged place.Arrange audio amplifier stationary pipes and cross-brace pipe is hinged, adjustable audio amplifier stationary pipes rotational angle in vertical direction, make the adjusting range of the locus of audio amplifier larger, stopping means is used for audio amplifier stationary pipes being fixed after adjusting to suitable angle.
As preferably, described supervisor 2 is linked in outside adjustable pipe 3, and is provided with sleeve pipe 10 in both junctions.This setting can make adjustable pipe supervisor in be free to slide, for adjust audio amplifier from wall distance, simple and reliable for structure.
As preferably, described first stopping means is the knob 9 for supervisor 2 and adjustable pipe 3 being tightened locking be arranged on supervisor 2.Arranging knob can conveniently tighten fixing by supervisor and adjustable pipe.
As preferably, described first stopping means also comprises several spacing holes 12 of shell fragment 11 and the setting of supervisor both sides, described shell fragment 11 is provided with the positioning convex 13 of two clamping spacing holes, shell fragment 11 is arranged in adjustable pipe 3 by the installing hole 14 on positioning convex 13 and adjustable pipe 3, and slip adjustable pipe 3 can by spacing for positioning convex 13 in the different spacing holes 12 of supervisor.This is arranged so that the first stopping means also has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the length of cross-brace pipe 18.
As preferably, described fixing down tube 4 is linked in outside movable down tube 5, and is provided with sleeve pipe 10 in both junctions.This setting can make movable down tube be free to slide in fixing down tube, regulates the length of skewed horizontal load pipe, thus regulates the angle of skewed horizontal load pipe vertical rotation, the final angle changing audio amplifier vertical rotation, simple and reliable for structure.
As preferably, described second stopping means is the knob 9 for fixing down tube 4 and movable down tube 5 being tightened locking be arranged on fixing down tube 4.Arranging knob can conveniently tighten fixing by fixing down tube and movable down tube.
As preferably, described second stopping means also comprises several spacing holes 20 of shell fragment 11 and the setting of fixing down tube 4 both sides, described shell fragment 11 is provided with the positioning convex 13 of two clamping spacing holes, shell fragment 11 is arranged in movable down tube 5 by the installing hole 22 on positioning convex 13 and movable down tube 5, and slip activity down tube 5 can by spacing for positioning convex 13 in the different spacing holes 20 of fixing down tube 4.This is arranged so that the second stopping means also has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the length of skewed horizontal load pipe 19.
As preferably, described cross-brace pipe 18 is provided with the connecting plate 16 of two parallel connections away from one end of fixed head 1, and audio amplifier stationary pipes 6 to be clipped between two connecting plates 16 and to be hinged with two connecting plates 16.Adopt two connecting plates cross-brace pipe and audio amplifier stationary pipes to be hinged, structure is simple, and reliably can realize the vertical rotation of audio amplifier stationary pipes, can regulate the angle of audio amplifier vertical rotation further.
As preferably, described 3rd stopping means comprises several spacing holes 21 be interconnected that shell fragment 11 and two connecting plates 16 are arranged respectively, described shell fragment 11 is provided with the positioning convex 13 of two clamping spacing holes, shell fragment 11 is arranged in audio amplifier stationary pipes 6 by the installing hole 23 on positioning convex 13 and audio amplifier stationary pipes 6, and rotating audio amplifier stationary pipes 6 can by spacing for positioning convex 13 in the different spacing hole 21 of connecting plate 16.Rotating audio amplifier stationary pipes can by spacing for positioning convex in the different spacing hole of connecting plate, this stopping means has the function of position instruction, by observing the position of positioning convex and spacing hole, accurately can regulate the angle of audio amplifier stationary pipes vertical rotation, and adopt hinged connected mode between cross-brace pipe and audio amplifier stationary pipes, make adjust after audio amplifier stationary pipes can by reliably spacing.
Claims (10)
1. a wall-hanging loudspeaker frame, comprise the fixed head (1) being provided with metope erecting device and the support (17) be rotationally connected with fixed head (1) horizontal and vertical, it is characterized in that: described support (17) comprises the cross-brace pipe (18) be connected with fixed head (1) upper end and the skewed horizontal load pipe (19) be connected with fixed head (1) lower end, described skewed horizontal load pipe (19) is hinged away from one end of fixed head (1) and the below of cross-brace pipe (18), described cross-brace pipe (18) comprises can the supervisor (2) of relative sliding fit and adjustable pipe (3), described skewed horizontal load pipe (19) comprises can the fixing down tube (4) of relative sliding fit and movable down tube (5), described cross-brace pipe (18) is provided with audio amplifier stationary pipes (6) away from one end of fixed head (1), at least described supervisor (2) and adjustable pipe (3) the two one of on be provided with the first stopping means, at least described fixing down tube (4) and movable down tube (5) the two one of on be provided with the second stopping means.
2. a kind of wall-hanging loudspeaker frame according to claim 1, is characterized in that: described cross-brace pipe (18) away from one end of fixed head (1) and audio amplifier stationary pipes (6) hinged and be provided with the 3rd stopping means in hinged place.
3. a kind of wall-hanging loudspeaker frame according to claim 1, is characterized in that: described supervisor (2) is linked in adjustable pipe (3) outward, and is provided with sleeve pipe (10) in both junctions.
4. a kind of wall-hanging loudspeaker frame according to claim 3, is characterized in that: described first stopping means is for being arranged on the knob (9) tightening locking for being responsible for (2) and adjustable pipe (3) on supervisor (2).
5. a kind of wall-hanging loudspeaker frame according to claim 4, it is characterized in that: described first stopping means also comprises several spacing holes (12) of shell fragment (11) and the setting of supervisor both sides, described shell fragment (11) is provided with the positioning convex (13) of two clamping spacing holes (12), shell fragment (11) is arranged in adjustable pipe (3) by the installing hole (14) in positioning convex (13) and adjustable pipe, and slip adjustable pipe (3) can by spacing for positioning convex (13) in the different spacing holes (12) of supervisor.
6. a kind of wall-hanging loudspeaker frame according to claim 1, is characterized in that: described fixing down tube (4) is linked in movable down tube (5) outward, and is provided with sleeve pipe (10) in both junctions.
7. a kind of wall-hanging loudspeaker frame according to claim 6, is characterized in that: described second stopping means is the knob (9) tightening locking for fixing down tube (4) and movable down tube (5) be arranged on fixing down tube.
8. a kind of wall-hanging loudspeaker frame according to claim 7, it is characterized in that: described second stopping means also comprises several spacing holes (20) of shell fragment (11) and the setting of fixing down tube both sides, described shell fragment (11) is provided with the positioning convex (13) of two clamping spacing holes (20), shell fragment (11) is arranged in movable down tube (5) by the installing hole (22) on positioning convex (13) and movable down tube, slip activity down tube (5) can by spacing for positioning convex (13) in the different spacing holes (20) of fixing down tube.
9. a kind of wall-hanging loudspeaker frame according to claim 2, it is characterized in that: described cross-brace pipe (18) is provided with the connecting plate (16) of two parallel connections away from one end of fixed head (1), audio amplifier stationary pipes (6) to be clipped between two connecting plates (16) and to be hinged with two connecting plates (16).
10. a kind of wall-hanging loudspeaker frame according to claim 9, it is characterized in that: described 3rd stopping means comprises several spacing holes (21) be interconnected that shell fragment (11) and two connecting plates are arranged respectively, described shell fragment (11) is provided with the positioning convex (13) of two clamping spacing holes (21), shell fragment (11) is arranged in audio amplifier stationary pipes (6) by the installing hole (23) in positioning convex (13) and audio amplifier stationary pipes, rotating audio amplifier stationary pipes (6) can by spacing for positioning convex (13) in the different spacing hole (21) of connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420570540.9U CN204190900U (en) | 2014-09-30 | 2014-09-30 | A kind of wall-hanging loudspeaker frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420570540.9U CN204190900U (en) | 2014-09-30 | 2014-09-30 | A kind of wall-hanging loudspeaker frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190900U true CN204190900U (en) | 2015-03-04 |
Family
ID=52622864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420570540.9U Expired - Fee Related CN204190900U (en) | 2014-09-30 | 2014-09-30 | A kind of wall-hanging loudspeaker frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190900U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104918150A (en) * | 2015-05-13 | 2015-09-16 | 南京百音高科技有限公司 | Sound box wall hanger |
| CN105763973A (en) * | 2016-04-13 | 2016-07-13 | 东莞茂强电子科技有限公司 | Hanging support for voice box |
| CN106162422A (en) * | 2016-08-19 | 2016-11-23 | 北海爱飞数码科技有限公司 | Suspended sound box |
| CN106162421A (en) * | 2016-08-19 | 2016-11-23 | 北海爱飞数码科技有限公司 | Embedded loudspeaker box |
| CN110267133A (en) * | 2019-08-02 | 2019-09-20 | 广州市天谱电器有限公司 | Portable mobile folding type battery linear array sound equipment |
| CN114390382A (en) * | 2022-01-24 | 2022-04-22 | 唐山师范学院 | Multimedia classroom is with intelligent public address wall-hanging audio amplifier |
| CN114906480A (en) * | 2022-06-10 | 2022-08-16 | 中冶建工集团有限公司 | Portable adjustable horizontal bracket and use method |
-
2014
- 2014-09-30 CN CN201420570540.9U patent/CN204190900U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104918150A (en) * | 2015-05-13 | 2015-09-16 | 南京百音高科技有限公司 | Sound box wall hanger |
| CN105763973A (en) * | 2016-04-13 | 2016-07-13 | 东莞茂强电子科技有限公司 | Hanging support for voice box |
| CN105763973B (en) * | 2016-04-13 | 2019-02-19 | 东莞精恒电子有限公司 | A kind of overhead support of speaker |
| CN106162422A (en) * | 2016-08-19 | 2016-11-23 | 北海爱飞数码科技有限公司 | Suspended sound box |
| CN106162421A (en) * | 2016-08-19 | 2016-11-23 | 北海爱飞数码科技有限公司 | Embedded loudspeaker box |
| CN106162421B (en) * | 2016-08-19 | 2020-05-01 | 北海爱飞数码科技有限公司 | Embedded sound box |
| CN110267133A (en) * | 2019-08-02 | 2019-09-20 | 广州市天谱电器有限公司 | Portable mobile folding type battery linear array sound equipment |
| CN114390382A (en) * | 2022-01-24 | 2022-04-22 | 唐山师范学院 | Multimedia classroom is with intelligent public address wall-hanging audio amplifier |
| CN114906480A (en) * | 2022-06-10 | 2022-08-16 | 中冶建工集团有限公司 | Portable adjustable horizontal bracket and use method |
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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: 20150304 Termination date: 20170930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |