CN204102462U - Cam profile curve demonstration teaching aid is drawn in reversal process - Google Patents
Cam profile curve demonstration teaching aid is drawn in reversal process Download PDFInfo
- Publication number
- CN204102462U CN204102462U CN201420622423.2U CN201420622423U CN204102462U CN 204102462 U CN204102462 U CN 204102462U CN 201420622423 U CN201420622423 U CN 201420622423U CN 204102462 U CN204102462 U CN 204102462U
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Abstract
The utility model discloses a kind of reversal process and draw cam profile curve demonstration teaching aid, comprise frame, outer shaft, interior axle and drawing board, drawing board is arranged on front side of frame, cross frame is provided with between drawing board and frame, frame lower is provided with lower shaft, lower shaft is provided with lower shaft gear, outer shaft is connected with frame with cross frame through on front side of frame, outer shaft is provided with outer shaft gear, outer shaft gear and lower shaft gears meshing, interior axle and outer shaft are rotationally connected, interior shaft rear end is connected with frame, drawing board is arranged on interior axle front end, in between drawing board and cross frame, axle is provided with central gear, cross frame forward upper is provided with driven member, driven member lower front side is provided with paintbrush, driven member bottom is fixed with pin, rack-plate is provided with between driven member and cross frame, rack-plate has curved groove, pin is through curved groove, rack-plate engages with central gear.The utility model not only can be demonstrated reversal process and draw cam profile curve, and can demonstrate the motion of reversion Qian Yuan mechanism.
Description
Technical field
The utility model relates to a kind of demonstration teaching aid, especially relates to a kind of reversal process and draws cam profile curve demonstration teaching aid.
Background technology
In " mechanical principle " course, this part content of reversal process design cam profile curve is more abstract.Teacher is when explaining, and describe two kinds of means by means of only drawing and language on blackboard, be not easy to make clear, a lot of student is not easy profound understanding.Want the principle understanding reversal process design cam profile curve quickly and accurately, must the motion of each component of cam mechanism after changing frame be had an image, specifically, is intuitively familiar with.But the mechanism kinematic schematic diagram that blackboard is drawn is static, teacher often wants expensive time and very large energy to explain from all angles, and static mechanism kinematic schematic diagram then by the imagination, must move up by student.Such imagination is very not clear, and student is difficult to be had image to the kinematic relation of each component, specifically, be intuitively familiar with, and just clearly can not understand the principle of reversal process design cam profile curve accurately yet.
Want to demonstrate reversal process principle intuitively, cam must be made to maintain static, and former frame and driven member rotate around cam, and driven member is by the motion of the given characteristics of motion simultaneously.Further, should have can the ingredient of visual representation driven member motion line chart (s displacement-corner δ curve) for teaching aid.At present about in the teaching aid of cam mechanism, although the motion demonstrating cam mechanism had, can not demonstrate reversal process and draw cam profile curve, student still well can not understand reversal process and draw cam profile curve.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, a kind of reversal process is provided to draw cam profile curve demonstration teaching aid, it not only can be demonstrated reversal process and draw cam profile curve, and also can demonstrate the motion of reversion Qian Yuan mechanism, compact conformation, reasonable in design, use easy to operate.
For achieving the above object, the technical solution adopted in the utility model is: cam profile curve demonstration teaching aid is drawn in a kind of reversal process, it is characterized in that: comprise frame, outer shaft, interior axle and drawing board, described drawing board is arranged on the front side of frame, described drawing board is transparent panel, cross frame is provided with between described drawing board and frame, the lower rotational of described frame is provided with lower shaft, described lower shaft is installed with lower shaft gear, described outer shaft is tubular shaft, described outer shaft is connected with gantry rotation with cross frame through the front side of frame, described outer shaft is fixedly connected with cross frame, described outer shaft is installed with outer shaft gear, described outer shaft gear and lower shaft gear are all arranged in frame, described outer shaft gear to be positioned at above lower shaft gear and to be meshed with lower shaft gear, the two ends of described interior axle pass the two ends of outer shaft respectively, described interior axle and outer shaft are rotationally connected, the rear end of described interior axle is passed frame and is connected with gantry rotation, described drawing board is fixedly mounted on the front end of interior axle, in between drawing board and cross frame, axle is installed with central gear, the forward upper of described cross frame is provided with the driven member that vertically can slide along cross frame, the lower front side of described driven member is provided with paintbrush, the bottom of described driven member is fixed with pin, rack-plate is provided with and rack-plate can along cross frame horizontal slip between described driven member and cross frame, described rack-plate has curved groove, described pin is through curved groove, described rack-plate to be positioned at above central gear and to be meshed with central gear.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: the top of described frame is provided with lock tooth plate by slide-bar, described slide-bar is fixed in frame, the quantity of described slide-bar is two and two slide-bars parallel, described slide-bar is arranged on above interior axle, described lock tooth plate is positioned at frame, and described slide-bar is through lock tooth plate and lock tooth plate can along slide-bar slide anteroposterior, and described lock tooth plate matches with outer shaft gear.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: also comprise side shaft, the front end of described side shaft is passed the top of frame and is connected with gantry rotation, described side shaft parallels with interior axle, described side shaft is installed with side shaft gear, described interior axle is installed with interior shaft gear, described interior shaft gear and side shaft gear are all positioned at frame, described interior shaft gear is meshed with side shaft gear, described interior shaft gear be positioned at lock tooth plate below and with lock tooth plate match.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, and it is characterized in that: the rear end of described lower shaft is fixedly connected with first handle, the rear end of described side shaft is fixedly connected with second handle.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: described driven member is slide rail, the upper end, front side of described cross frame is fixed with the first slide block, described first slide block matches with driven member, the quantity of described first slide block is two, and two the first slide blocks are symmetrical arranged up and down.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: the rear side of described rack-plate is fixed with the second slide block, and the front side of described cross frame is fixed with slide rail, and described slide rail matches with the second slide block.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, and it is characterized in that: the lower edge of described rack-plate is provided with the gear teeth, the gear teeth quantity on described rack-plate lower edge is greater than the central gear wheel rim gear teeth quantity of one week.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: described outer shaft is through the center of cross frame.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: the center line of described outer shaft and interior axle coincides.
Cam profile curve demonstration teaching aid is drawn in above-mentioned reversal process, it is characterized in that: the shape of described drawing board is for circular, and the periphery of described drawing board is provided with angle index.
The utility model compared with prior art has the following advantages:
1, the utility model is when aided education, teacher can explain while demonstrate, repeatedly demonstrate " reversal process " principle in the short period of time, student also can observe the relative motion relation of each component in mechanism more intuitively, makes the image of abstract content of courses change, intuitively, is both convenient to teacher explains, also contribute to student to understand, thus greatly motivate students' interest in learning, strengthen teaching efficiency, improve the quality of teaching.
2, the utility model utilizes pinion and rack, and cam angle is launched into rectilinear coordinates, utilizes translation cam mechanism, make driven member by given S-δ curvilinear motion, thus the characteristics of motion of cam follower is embodied in practical set-up intuitively, this demonstration teaching aid compact conformation, moulding is simple.
3, in the utility model, axle and outer shaft adopt quill design, are convenient to frame and switch, frame switching part, utilize coordinating of lock tooth plate and outer shaft gear or interior shaft gear, achieve and fix the circumference of outer shaft or interior axle, operate very easy, a step can complete frame and switch.
4, the utility model has multiple demo function, in presentation process, and the kinematic relation of each component after energy direct vision to kinematic inversion, and given S-δ curvilinear motion can be pressed to the motion of driven member by direct vision.In addition, understand for the ease of contrast, teaching aid also should be able to demonstrate the motion of the front former cam mechanism of reversion.
5, the utility model is handsome in appearance, low cost of manufacture, can be used as teaching aid special and is generalized to each colleges and universities.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation after Fig. 1 rotates to an angle.
Fig. 3 is the structural representation after the utility model removes frame and drawing board.
Fig. 4 is the structural representation after Fig. 3 rotates to an angle.
Fig. 5 is side view of the present utility model.
Description of reference numerals:
1-drawing board; 1-1-angle index; 2-driven member;
2-1-the first slide block; 3-cross frame; 4-central gear;
5-lock tooth plate; 6-rack-plate; 6-1-the second slide block;
6-2-slide rail; 7-curved groove; 8-pin;
9-lower shaft gear; 10-outer shaft gear; 11-side shaft gear;
12-interior shaft gear; 13-interior axle; 14-outer shaft;
15-slide-bar; 16-side shaft; 17-second handle;
18-first handle; 19-lower shaft; 20-frame;
21-paintbrush.
Embodiment
As shown in Figures 1 to 5, the utility model comprises frame 20, outer shaft 14, interior axle 13 and drawing board 1, described drawing board 1 is arranged on the front side of frame 20, described drawing board 1 is transparent panel, cross frame 3 is provided with between described drawing board 1 and frame 20, the lower rotational of described frame 20 is provided with lower shaft 19, described lower shaft 19 is installed with lower shaft gear 9, described outer shaft 14 is tubular shaft, described outer shaft 14 is through the front side of frame 20 and cross frame 3 and be rotationally connected with frame 20, described outer shaft 14 is fixedly connected with cross frame 3, described outer shaft 14 is installed with outer shaft gear 10, described outer shaft gear 10 and lower shaft gear 9 are all arranged in frame 20, described outer shaft gear 10 to be positioned at above lower shaft gear 9 and to be meshed with lower shaft gear 9, the two ends of described interior axle 13 pass the two ends of outer shaft 14 respectively, described interior axle 13 is rotationally connected with outer shaft 14, the rear end of described interior axle 13 is passed frame 20 and is rotationally connected with frame 20, described drawing board 1 is fixedly mounted on the front end of interior axle 13, in between drawing board 1 and cross frame 3, axle 13 is installed with central gear 4, the forward upper of described cross frame 3 is provided with the driven member 2 that vertically can slide along cross frame 3, the lower front side of described driven member 2 is provided with paintbrush 21, the bottom of described driven member 2 is fixed with pin 8, rack-plate 6 is provided with and rack-plate 6 can along cross frame 3 horizontal slip between described driven member 2 and cross frame 3, described rack-plate 6 has curved groove 7, described pin 8 is through curved groove 7, described rack-plate 6 to be positioned at above central gear 4 and to be meshed with central gear 4.In the present embodiment, interior axle 13 is rotationally connected by built-in bearing and outer shaft 14, and interior axle 13 and outer shaft 14 are all rotatable, and cross frame 3 can rotate with outer shaft 14, and central gear 4 can rotate with interior axle 13; The shape of curved groove 7 is the S-δ curve of given driven member, δ direction of principal axis is tooth bar reticule direction, S direction of principal axis is perpendicular to δ direction of principal axis, the glide direction of cross frame 3 is identical with δ direction of principal axis, driven member 2 is driven by pin 8 and curved groove 7 and slides up and down, and the glide direction of driven member 2 is identical with S direction of principal axis.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, the top of described frame 20 is provided with lock tooth plate 5 by slide-bar 15, described slide-bar 15 is fixed in frame 20, the quantity of described slide-bar 15 is two and two slide-bars 15 parallel, described slide-bar 15 is arranged on above interior axle 13, described lock tooth plate 5 is positioned at frame 20, and described slide-bar 15 is through lock tooth plate 5 and lock tooth plate 5 can along slide-bar 15 slide anteroposterior, and described lock tooth plate 5 matches with outer shaft gear 10.
As shown in Figures 2 to 5, the utility model also comprises side shaft 16, the front end of described side shaft 16 is passed the top of frame 20 and is rotationally connected with frame 20, described side shaft 16 parallels with interior axle 13, described side shaft 16 is installed with side shaft gear 11, described interior axle 13 is installed with interior shaft gear 12, described interior shaft gear 12 and side shaft gear 11 are all positioned at frame 20, described interior shaft gear 12 is meshed with side shaft gear 11, described interior shaft gear 12 be positioned at lock tooth plate 5 below and with lock tooth plate 5 match.
As shown in Figures 2 to 5, the rear end of described lower shaft 19 is fixedly connected with first handle 18, and the rear end of described side shaft 16 is fixedly connected with second handle 17, convenient rotation.
As shown in Figures 1 to 5, described driven member 2 is slide rail, and the upper end, front side of described cross frame 3 is fixed with the first slide block 2-1, and described first slide block 2-1 matches with driven member 2, the quantity of described first slide block 2-1 is two, and two the first slide block 2-1 are symmetrical arranged up and down.
As shown in Fig. 2, Fig. 4 and Fig. 5, the rear side of described rack-plate 6 is fixed with the second slide block 6-1, and the front side of described cross frame 3 is fixed with slide rail 6-2, and described slide rail 6-2 matches with the second slide block 6-1.
As shown in Figures 1 to 5, the lower edge of described rack-plate 6 is provided with the gear teeth, and the gear teeth quantity on described rack-plate 6 lower edge is greater than the central gear 4 wheel rim gear teeth quantity of one week.
In the present embodiment, described outer shaft 14 is through the center of cross frame 3.
In the present embodiment, the center line of described outer shaft 14 and interior axle 13 coincides.
As shown in Figure 1, the shape of described drawing board 1 is circular, and the periphery of described drawing board 1 is provided with angle index 1-1, is convenient to observe the anglec of rotation.
Principle of work of the present utility model is: this practicality can be used for demonstrating the demonstration that cam profile curve and the front former mechanism kinematic of reversion are drawn in reversal process.When for demonstrating reversal process drafting cam profile curve, slided into by lock tooth plate 5 and be meshed with interior shaft gear 12, then central gear 4 is fixed, and relative with machine frame 20 fixing.Rotate first handle 18, drive lower shaft 19 to rotate, lower shaft 19 drives lower shaft gear 9 to rotate, and because outer shaft gear 10 engages with lower shaft gear 9, so outer shaft gear 10 rotates, drives outer shaft 14 to rotate together with cross frame 3; Because cross frame 3 and rack-plate 6 are slidably connected, rack-plate 6 therefore can be driven to rotate around central gear 4 with identical rotating speed.Simultaneously, because rack-plate 6 is meshed with central gear 4, and rack-plate 6 and cross frame 3 are slidably connected, so rack-plate 6 follow cross frame 3 rotate while, also relative to cross frame 3 moving linearly, material is thus formed the axial motion of S-δ curve δ, and the corner of displacement and cross frame 3 is linear relationship.According to the feature that rack-plate 6 is meshed with central gear 4, when rack-plate 6 turns over one week, the displacement of rack-plate 6 equals the reference circle girth of central gear 4.Because curved groove 7 to equal the reference circle girth of central gear 4 along the span in rack-plate reticule direction, therefore, when rack-plate turns over one week, driven member moves to the other end from one end of curved groove.On the other hand, while relative cross frame 3 rectilinear motion of rack-plate 6, driven member 2 rack-plate 6 moving linearly is relatively driven by curved groove 7, material is thus formed the axial motion of S-δ curve S, it is determined by the curve shape of curved groove 7 relative to the characteristics of motion of rack-plate 6, is namely determined by given S-δ curve.When cross frame 3 rotates one week, rack-plate 6 rotates one week around central gear 4, driven member 2 moves to the other end from one end of curved groove 7, it also just completes along the axial rectilinear motion of δ with along the axial rectilinear motion of S relative to rack-plate 6, wherein along δ, axial to move with the corner of cross frame 3 are linear relationships, and to be undertaken along axial the moving of S by given S-δ curve, therefore, the track that drawing board 1 is passed by is cam profile curve.During actual presentation, the process of drawing cam profile curve and the cam profile curve drawn can be observed on drawing board 1.
When demonstration for former mechanism kinematic before reversing, lock tooth plate 5 is slided into and is meshed with outer shaft gear 10, rotate second handle 17, side shaft 16 is driven to rotate, side shaft 16 drives side shaft gear 11 to rotate, because interior shaft gear 12 engages with side shaft gear 11, within institute, shaft gear 12 rotates, and drives central gear 4 and drawing board 1 to rotate.Central gear 4 drives rack-plate 6 along δ direction of principal axis moving linearly, by curved groove 7 and pin 8, drives driven member 2 along S axle moving linearly.Central gear 4 rotates one week, and cam profile curve on drawing board 1 is formed, and driven member 2 moves after a stroke and gets back to original position.During actual presentation, the motion can observing driven member 2 is undertaken by given S-δ curve, and the track that the paintbrush 21 on driven member 2 is passed by drawing board 1 is cam profile curve.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. cam profile curve demonstration teaching aid is drawn in a reversal process, it is characterized in that: comprise frame (20), outer shaft (14), interior axle (13) and drawing board (1), described drawing board (1) is arranged on the front side of frame (20), described drawing board (1) is transparent panel, cross frame (3) is provided with between described drawing board (1) and frame (20), the lower rotational of described frame (20) is provided with lower shaft (19), described lower shaft (19) is installed with lower shaft gear (9), described outer shaft (14) is tubular shaft, described outer shaft (14) is through the front side of frame (20) and cross frame (3) and be rotationally connected with frame (20), described outer shaft (14) is fixedly connected with cross frame (3), described outer shaft (14) is installed with outer shaft gear (10), described outer shaft gear (10) and lower shaft gear (9) are all arranged in frame (20), described outer shaft gear (10) is positioned at lower shaft gear (9) top and is meshed with lower shaft gear (9), the two ends of described interior axle (13) pass the two ends of outer shaft (14) respectively, described interior axle (13) and outer shaft (14) are rotationally connected, the rear end of described interior axle (13) is passed frame (20) and is rotationally connected with frame (20), described drawing board (1) is fixedly mounted on the front end of interior axle (13), be positioned on the axle (13) between drawing board (1) and cross frame (3) and be installed with central gear (4), the forward upper of described cross frame (3) is provided with the driven member (2) that vertically can slide along cross frame (3), the lower front side of described driven member (2) is provided with paintbrush (21), the bottom of described driven member (2) is fixed with pin (8), rack-plate (6) is provided with and rack-plate (6) can along cross frame (3) horizontal slip between described driven member (2) and cross frame (3), described rack-plate (6) has curved groove (7), described pin (8) is through curved groove (7), described rack-plate (6) is positioned at central gear (4) top and is meshed with central gear (4).
2. draw cam profile curve demonstration teaching aid according to reversal process according to claim 1, it is characterized in that: the top of described frame (20) is provided with lock tooth plate (5) by slide-bar (15), described slide-bar (15) is fixed in frame (20), the quantity of described slide-bar (15) is two and two slide-bars (15) parallel, described slide-bar (15) is arranged on interior axle (13) top, described lock tooth plate (5) is positioned at frame (20), described slide-bar (15) is through lock tooth plate (5) and lock tooth plate (5) can along slide-bar (15) slide anteroposterior, described lock tooth plate (5) is matched with outer shaft gear (10).
3. draw cam profile curve demonstration teaching aid according to reversal process according to claim 2, it is characterized in that: also comprise side shaft (16), the front end of described side shaft (16) is passed the top of frame (20) and is rotationally connected with frame (20), described side shaft (16) parallels with interior axle (13), described side shaft (16) is installed with side shaft gear (11), described interior axle (13) is installed with interior shaft gear (12), described interior shaft gear (12) and side shaft gear (11) are all positioned at frame (20), described interior shaft gear (12) is meshed with side shaft gear (11), described interior shaft gear (12) is positioned at lock tooth plate (5) below and matches with lock tooth plate (5).
4. draw cam profile curve demonstration teaching aid according to reversal process according to claim 3, it is characterized in that: the rear end of described lower shaft (19) is fixedly connected with first handle (18), the rear end of described side shaft (16) is fixedly connected with second handle (17).
5. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: described driven member (2) is slide rail, the upper end, front side of described cross frame (3) is fixed with the first slide block (2-1), described first slide block (2-1) is matched with driven member (2), the quantity of described first slide block (2-1) is two, and two the first slide blocks (2-1) are symmetrical arranged up and down.
6. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: the rear side of described rack-plate (6) is fixed with the second slide block (6-1), the front side of described cross frame (3) is fixed with slide rail (6-2), and described slide rail (6-2) matches with the second slide block (6-1).
7. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: the lower edge of described rack-plate (6) is provided with the gear teeth, the gear teeth quantity on described rack-plate (6) lower edge is greater than central gear (4) the wheel rim gear teeth quantity of one week.
8. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: described outer shaft (14) is through the center of cross frame (3).
9. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: the center line of described outer shaft (14) and interior axle (13) coincides.
10. draw cam profile curve demonstration teaching aid according to the reversal process described in the arbitrary claim of claim 1-4, it is characterized in that: the shape of described drawing board (1) is for circular, and the periphery of described drawing board (1) is provided with angle index (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622423.2U CN204102462U (en) | 2014-10-24 | 2014-10-24 | Cam profile curve demonstration teaching aid is drawn in reversal process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622423.2U CN204102462U (en) | 2014-10-24 | 2014-10-24 | Cam profile curve demonstration teaching aid is drawn in reversal process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204102462U true CN204102462U (en) | 2015-01-14 |
Family
ID=52270872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420622423.2U Withdrawn - After Issue CN204102462U (en) | 2014-10-24 | 2014-10-24 | Cam profile curve demonstration teaching aid is drawn in reversal process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204102462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299508A (en) * | 2014-10-24 | 2015-01-21 | 西安科技大学 | Cam profile curve plotting demonstration instrument |
| CN105654837A (en) * | 2016-04-10 | 2016-06-08 | 青岛智信天成科技发展有限公司 | In-class assisting teaching tool for mechanical cam teaching |
| CN112086006A (en) * | 2020-09-07 | 2020-12-15 | 重庆智能机器人研究院 | Cam mechanism teaching demonstration device |
-
2014
- 2014-10-24 CN CN201420622423.2U patent/CN204102462U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299508A (en) * | 2014-10-24 | 2015-01-21 | 西安科技大学 | Cam profile curve plotting demonstration instrument |
| CN104299508B (en) * | 2014-10-24 | 2016-05-18 | 西安科技大学 | Cam profile curve is drawn demonstrator |
| CN105654837A (en) * | 2016-04-10 | 2016-06-08 | 青岛智信天成科技发展有限公司 | In-class assisting teaching tool for mechanical cam teaching |
| CN112086006A (en) * | 2020-09-07 | 2020-12-15 | 重庆智能机器人研究院 | Cam mechanism teaching demonstration device |
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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: 20150114 Effective date of abandoning: 20160518 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |