CN208985915U - A kind of permanent-magnet breaker with hand generator - Google Patents
A kind of permanent-magnet breaker with hand generator Download PDFInfo
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- CN208985915U CN208985915U CN201821195155.5U CN201821195155U CN208985915U CN 208985915 U CN208985915 U CN 208985915U CN 201821195155 U CN201821195155 U CN 201821195155U CN 208985915 U CN208985915 U CN 208985915U
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- transmission shaft
- containing box
- permanent
- rod
- generator
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Abstract
The utility model provides a kind of permanent-magnet breaker with hand generator.The permanent-magnet breaker with hand generator includes permanent-magnet manipulating mechanism, capacitor, connecting lever, vacuum interrupter and generator, further includes: containing box；Sealing structure；Connection terminal；Transmission gear, engaging has the transmission gear for transmission on the generator；Drive mechanism, the drive mechanism is set to the inside of the containing box, the drive mechanism includes fixing sleeve, transmission shaft and driving gear, the transmission shaft extends to the fixing sleeve inside the containing box through the containing box, it is rotatablely connected between the transmission shaft and the fixing sleeve, the transmission shaft engages with the driving gear, and the driving gear is engaged with the transmission gear；Position limiting structure；Driving structure.Permanent-magnet breaker provided by the utility model with hand generator has the advantages that easy to operate, security performance is high, is convenient for grid maintenance and maintenance.
Description
Technical field
The utility model relates to technical field of electric equipment more particularly to a kind of permanent-magnet breakers with hand generator.
Background technique
Permanent-magnet breaker uses in bistable state and sets device for under-voltage releasing equipment permanent magnet mechanism, and becames one with mechanical, hand-driven buckle releaser
Change design, keeps manual brake separating light reliable, permanent magnet mechanism separating brake is combined with spring separating brake, manages the distribution of opening velocity more
Think, when system jam by the effect of relay protection, cuts off overload electric current and short circuit current, it has phase
When perfect arc extinguishing structure and enough cutout abilities.
However traditional permanent-magnet breaker not carry electricity generation system, cannot outside appearance for a long time have a power failure etc. burst feelings
It is continued working under condition, reduces the safety of the job stability and high-voltage circuit system of permanent-magnet breaker, be not easy to burst
Situation is overhauled.
Therefore, it is necessary to provide a kind of new permanent-magnet breaker solution above-mentioned technical problem with hand generator.
Utility model content
The technical issues of the utility model solves be to provide it is a kind of it is easy to operate, security performance is high, convenient for grid maintenance and
The permanent-magnet breaker with hand generator of maintenance.
In order to solve the above technical problems, the permanent-magnet breaker provided by the utility model with hand generator includes: permanent magnetism
Operating mechanism, capacitor, connecting lever, vacuum interrupter and generator, further includes: the inside of containing box, the containing box is equipped with institute
State permanent-magnet manipulating mechanism, the capacitor, the connecting lever, the vacuum interrupter and the generator；Sealing structure, it is described close
It is detachably connected between seal structure and the containing box；Connection terminal, the connection terminal for connecting cable is through institute
State containing box；Transmission gear, engaging has the transmission gear for transmission on the generator；Drive mechanism, the transmission
Structure is set to the inside of the containing box, and the drive mechanism includes that fixing sleeve, transmission shaft and driving gear, the transmission shaft pass through
It is through at the containing box and extends to the fixing sleeve inside the containing box, rotated between the transmission shaft and the fixing sleeve
Connection, the transmission shaft engages with the driving gear, and the driving gear is engaged with the transmission gear；Position limiting structure,
The position limiting structure is connected to the transmission shaft, and the position limiting structure includes guide rod, reset spring, limit plate and position-arresting disk,
The reset spring is completely embedded into the inside of the transmission shaft, and the guide rod extends to the reset through the transmission shaft
Spring is slidably connected between the guide rod and the transmission shaft, for cooperating the position-arresting disk to limit the transmission shaft
The limit plate of position is perpendicularly fixed at the guide rod, and the position-arresting disk is fixed on the inner sidewall of the containing box, and described
Limit plate is engaged with the position-arresting disk；Driving structure, the driving structure are contradicted through the transmission shaft and the guide rod.
Preferably, set on the containing box there are six for insulation insulation sleeve, the connection terminal through it is described absolutely
Edge set, and six insulation sleeves are symmetrically set in the both ends of the containing box two-by-two.
Preferably, the edges and corners of the containing box are equipped with fixed frame.
Preferably, the sealing structure includes sealing plate and sealing ring, and the containing box is close to one end of the sealing plate
It is embedded with the sealing ring for sealing, the sealing plate contradicts the sealing ring and is detachably connected with the containing box.
Preferably, the cross section of the sealing plate is parallelogram sturcutre, the company of the sealing plate and the containing box
Meeting place is smooth flat.
Preferably, the diameter of the driving gear is greater than the diameter of the transmission gear, and the diameter of the driving gear
Greater than the diameter of the position-arresting disk.
Preferably, the driving structure includes connecting rod, drive rod, sleeve, limited post, guide sleeve and gag lever post, described
Connecting rod engages with the transmission shaft, and the gag lever post extends to the guide rod, the connecting rod through the connecting rod
It is equipped with the guide sleeve away from one end of the transmission shaft, the limited post is connected to the guide sleeve, and the limited post deviates from
One end of the guide sleeve is equipped with the drive rod, and is rotatablely connected between the drive rod and the sleeve.
Preferably, the connecting rod is positive hexagonal structure close to one end of the transmission shaft, and in the connecting rod
It is threadedly coupled, is threadedly coupled between the gag lever post and the transmission shaft, and described between the gag lever post and the connecting rod
Gag lever post is " 7 " character form structure.
Preferably, the driving structure further includes two fixed blocks, adjusting rod and drive ring, two fixed block difference
It is fixed on the guide sleeve and the drive rod, the adjusting rod is through the fixed block, the adjusting rod and the driving
It is rotatablely connected between a fixed block on bar, and is threadedly coupled between the adjusting rod and fixed block described in another,
The drive ring is fixed on the adjusting rod.
Preferably, the limited post is positive hexagonal structure, and is slidably connected between the limited post and the guide sleeve.
Compared with the relevant technologies, the permanent-magnet breaker provided by the utility model with hand generator has following beneficial
Effect:
The utility model provides a kind of permanent-magnet breaker with hand generator, when device powers off for a long time, passes through
The driving structure contradicts the transmission shaft, makes the guide rod that the reset spring be driven to shrink, and the guide rod drives institute
It states limit plate to separate with the position-arresting disk, can be rotated the transmission shaft, the driving gear band on the transmission shaft moves institute
Transmission gear rotation is stated, the transmission gear drives the generator work, cooperates the capacitor to device by generator
Power supply ensure that breaker works when overhauling and safeguarding power grid, enhances the stability of permanent-magnet breaker, improve power grid inspection
The efficiency and its quality of maintenance are repaired, while after dismantling the driving structure, the reset spring drives the guide rod and institute
Propeller shaft slip is stated, engages the limit plate with the position-arresting disk, the transmission shaft is limited, is prevented without using the hair
When motor, the builtin voltage for driving the transmission shaft to cause breaker changes, and substantially increases stability.
Detailed description of the invention
Fig. 1 is that a kind of structure of preferred embodiment of the permanent-magnet breaker provided by the utility model with hand generator is shown
It is intended to；
Fig. 2 is the schematic diagram of internal structure of containing box shown in FIG. 1；
Fig. 3 is the portion A shown in Fig. 2 enlarged diagram；
Fig. 4 is the structural schematic diagram of driving structure shown in FIG. 1；
Fig. 5 is the attachment structure schematic diagram of sealing structure shown in FIG. 1 and containing box.
Figure label: 1, fixed frame, 2, insulation sleeve, 3, connection terminal, 4, driving structure, 41, connecting rod, 42, fixed block,
43, adjusting rod, 44, drive ring, 45, drive rod, 46, sleeve, 47, limited post, 48, guide sleeve, 49, gag lever post, 5, sealing knot
Structure, 51, sealing plate, 52, sealing ring, 6, containing box, 7, transmission gear, 8, drive mechanism, 81, fixing sleeve, 82, transmission shaft,
83, gear, 9, position limiting structure, 91, guide rod, 92, reset spring, 93, limit plate, 94, position-arresting disk, 9a, permanent magnetic operating are driven
Mechanism, 9b, capacitor, 9c, connecting lever, 9d, vacuum interrupter, 9e, generator.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wherein Fig. 1 is band hand generator provided by the utility model
Permanent-magnet breaker a kind of preferred embodiment structural schematic diagram；Fig. 2 is that the internal structure of containing box shown in FIG. 1 is illustrated
Figure；Fig. 3 is the portion A shown in Fig. 2 enlarged diagram；Fig. 4 is the structural schematic diagram of driving structure shown in FIG. 1；Fig. 5 is Fig. 1 institute
The attachment structure schematic diagram of the sealing structure and containing box shown.Permanent-magnet breaker with hand generator includes: permanent magnetic operating machine
Structure 9a, capacitor 9b, connecting lever 9c, vacuum interrupter 9d and generator 9e, the permanent-magnet manipulating mechanism 9a, the capacitor 9b,
It is electrically connected between the vacuum interrupter 9d and the generator 9e, further includes: the inside of containing box 6, the containing box 6 is set
There are the permanent-magnet manipulating mechanism 9a, the capacitor 9b, the connecting lever 9c, the vacuum interrupter 9d and the generator 9e；
Sealing structure 5 is detachably connected between the sealing structure 5 and the containing box 6；Connection terminal 3, the institute for connecting cable
Connection terminal 3 is stated through the containing box 6；Transmission gear 7, engaging has the biography for transmission on the generator 9e
Moving gear 7；Drive mechanism 8, the drive mechanism 8 are set to the inside of the containing box 6, and the drive mechanism 8 includes fixing sleeve
81, transmission shaft 82 and driving gear 83, the transmission shaft 82 extend to inside the containing box 6 through the containing box 6
The fixing sleeve 81 is rotatablely connected between the transmission shaft 82 and the fixing sleeve 81, the transmission shaft 82 and the sliding tooth
83 engaging of wheel, and the driving gear 83 is engaged with the transmission gear 7；Position limiting structure 9, the position limiting structure 9 are connected to institute
Transmission shaft 82 is stated, the position limiting structure 9 includes guide rod 91, reset spring 92, limit plate 93 and position-arresting disk 94, the reset
Spring 92 is completely embedded into the inside of the transmission shaft 82, and the guide rod 91 extends to the reset through the transmission shaft 82
Spring 92 is slidably connected between the guide rod 91 and the transmission shaft 82, for cooperating the position-arresting disk 94 to the transmission
The limit plate 93 that axis 82 is limited is perpendicularly fixed at the guide rod 91, and the position-arresting disk 94 is fixed on the containing box
6 inner sidewall, and the limit plate 93 is engaged with the position-arresting disk 94；Driving structure 4, the driving structure 4 is through described
Transmission shaft 82 and the guide rod 91 contradict.
It is set on the containing box 6 there are six the insulation sleeve 2 for insulation, the connection terminal 3 is through the insulation sleeve
2, and six insulation sleeves 2 are symmetrically set in the both ends of the containing box 6 two-by-two, in order to improve usage safety performance.
The edges and corners of the containing box 6 are equipped with fixed frame 1, and the fixed frame 1 is a kind of angle steel.The sealing structure 5
Including sealing plate 51 and sealing ring 52, the containing box 6 is embedded with close to one end of the sealing plate 51 for described in sealing
Sealing ring 52, the sealing plate 51 contradict the sealing ring 52 and are detachably connected with the containing box 6, for the ease of maintenance dimension
Protect equipment；In the present embodiment, the cross section of the sealing plate 51 is parallelogram sturcutre, the sealing plate 51 and the storage
The junction of case 6 is smooth flat, and the sealing plate 51 and the sealing ring 52 for the inside for being embedded in the containing box 6 contradict,
The cross section of the sealing plate 51 be parallelogram sturcutre, increase the lateral force area with the containing box 6, convenient for
The containing box 6 limits, and improves waterproof performance.
The diameter of the driving gear 83 is greater than the diameter of the transmission gear 7, and the diameter of the driving gear 83 is big
In the diameter of the position-arresting disk 94, in order to improve the revolving speed of the generator 9e.
The driving structure 4 includes connecting rod 41, drive rod 45, sleeve 46, limited post 47, guide sleeve 48 and gag lever post
49, the connecting rod 41 engages with the transmission shaft 82, and the gag lever post 49 extends to described lead through the connecting rod 41
To bar 91, the connecting rod 41 is equipped with the guide sleeve 48 away from one end of the transmission shaft 82, and the limited post 47 is connected to
The guide sleeve 48, the limited post 47 are equipped with the drive rod 45, and the drive rod away from one end of the guide sleeve 48
It is rotatablely connected between 45 and the sleeve 46；The connecting rod 41 is positive hexagonal structure close to one end of the transmission shaft 82,
And it is threadedly coupled between the gag lever post 49 in the connecting rod 41 and the connecting rod 41, the gag lever post 49 and the biography
It is threadedly coupled between moving axis 82, and the gag lever post 49 is " 7 " character form structure；In the present embodiment, the driving structure 4 further includes
Two fixed blocks 42, adjusting rod 43 and drive ring 44, two fixed blocks 42 be individually fixed in the guide sleeve 48 with it is described
Drive rod 45, the adjusting rod 43 is through the fixed block 42, the adjusting rod 43 and an institute on the drive rod 45
It states and is rotatablely connected between fixed block 42, and be threadedly coupled between the adjusting rod 43 and fixed block 42 described in another, the drive
Rotating ring 44 is fixed on the adjusting rod 43；In the present embodiment, the limited post 47 is positive hexagonal structure, and the limited post 47
It is slidably connected between the guide sleeve 48；According to the strength and its use habit of operator, the drive ring 44 is turned, it is described
Drive ring 44 drives and is rotatablely connected between the adjusting rod 43 and a fixed block 42 for being fixed on the drive rod 45,
It is threadedly coupled with fixed block 42 described in another, thus drive the limited post 47 in the internal slide of the guide sleeve 48,
To adjust vertical range of the sleeve 46 between the connecting rod 41, the length of lever is made to change, realizes circle
Conversion between the length and strength in week, and be rotatablely connected between the sleeve 46 and the drive rod 45, it improves using easypro
Appropriateness, then engages the connecting rod 41 with the transmission shaft 82, the connecting rod 41 is close to one end of the transmission shaft 82
Be positive hexagonal structure, make to connect between the transmission shaft 82 and the connecting rod 41 it is more firm, by turning the limit
Bar 49 is threadedly coupled between the gag lever post 49 and the transmission shaft 82, convenient for limiting to the connecting rod 41.
The working principle of permanent-magnet breaker provided by the utility model with hand generator is as follows:
First by the permanent-magnet manipulating mechanism 9a, the capacitor 9b, the connecting lever 9c, the vacuum interrupter 9d and institute
The inside that generator 9e is sequentially arranged in the containing box is stated, then by the inside of the sealing plate 51 and the insertion containing box 6
The sealing ring 52 contradict, the cross section of the sealing plate 51 is parallelogram sturcutre, is increased and the containing box 6
Lateral force area, convenient for the containing box 6 limit, improve waterproof performance, when device for a long time power off when, according to
The strength and its use habit of operator, turns the drive ring 44, and the drive ring 44 drives the adjusting rod 43 and fixes
It is rotatablely connected between a fixed block 42 of the drive rod 45, is threadedly coupled with fixed block 42 described in another,
To drive the limited post 47 in the internal slide of the guide sleeve 48, to adjust the sleeve 46 apart from the connecting rod
Vertical range between 41 makes the length of lever change, and realizes the conversion between the length of circumference and strength, and the set
It is rotatablely connected between cylinder 46 and the drive rod 45, improves usage comfort, then by the connecting rod 41 and the transmission
Axis 82 engages, and the connecting rod 41 is positive hexagonal structure close to one end of the transmission shaft 82, makes the transmission shaft 82 and institute
State connected between connecting rod 41 it is more firm, by turning the gag lever post 49, the gag lever post 49 and the transmission shaft 82 it
Between be threadedly coupled, convenient for limiting to the connecting rod 41, while the gag lever post 49 contradicts the guide rod 91, makes the guiding
Bar 91 drives the reset spring 92 to shrink, and the guide rod 91 drives the limit plate 93 to separate with the position-arresting disk 94, makes
The transmission shaft 82 can be rotated, and the driving gear 83 on the transmission shaft 82 drives the transmission gear 7 to rotate, the biography
Moving gear 7 drives the generator 9e to work, and cooperates the capacitor 9b to power device by generator 9e, ensure that
Breaker works when maintenance and maintenance power grid, enhances the stability of permanent-magnet breaker, improves the efficiency of grid maintenance maintenance
And its quality, while after dismantling driving structure 4, the reset spring 92 drives the guide rod 91 and the transmission shaft
82 slidings, engage the limit plate 93 with the position-arresting disk 94, limit to the transmission shaft 82, prevent without using the hair
When motor 9e, the builtin voltage for driving the transmission shaft 82 to cause breaker changes, and substantially increases stability, the fixation
1 angle steel of frame keeps fixed device more convenient；Permanent-magnet manipulating mechanism 9a described in the present embodiment, the capacitor 9b, the connecting lever
9c, the vacuum interrupter 9d and the generator 9e are shown in State Intellectual Property Office of the People's Republic of China's number of patent application
201620986741.6。
Compared with the relevant technologies, the permanent-magnet breaker provided by the utility model with hand generator has following beneficial
Effect:
The utility model provides a kind of permanent-magnet breaker with hand generator, when device powers off for a long time, passes through
The driving structure 4 contradicts the transmission shaft 82, makes the guide rod 91 that the reset spring 92 be driven to shrink, the guiding
Bar 91 drives the limit plate 93 to separate with the position-arresting disk 94, can be rotated the transmission shaft 82, on the transmission shaft 82
The driving gear 83 drives the transmission gear 7 to rotate, and the transmission gear 7 drives the generator 9e to work, and passes through hair
Motor 9e cooperates the capacitor 9b to power device, ensure that breaker works when overhauling and safeguarding power grid, enhances forever
The stability of magnetic circuit breaker improves the efficiency and its quality of grid maintenance maintenance, while after dismantling driving structure 4,
The reset spring 92 drives the guide rod 91 to slide with the transmission shaft 82, makes the limit plate 93 and the position-arresting disk 94
Engagement limits the transmission shaft 82, prevents from driving the transmission shaft 82 to cause breaker when without using the generator 9e
Builtin voltage variation, substantially increase stability.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of permanent-magnet breaker with hand generator, comprising: permanent-magnet manipulating mechanism, capacitor, connecting lever, vacuum interrupter and
Generator, which is characterized in that further include:
The inside of containing box, the containing box is equipped with the permanent-magnet manipulating mechanism, the capacitor, the connecting lever, the vacuum
Arc-chutes and the generator；
Sealing structure is detachably connected between the sealing structure and the containing box；
Connection terminal, the connection terminal for connecting cable is through the containing box；
Transmission gear, engaging has the transmission gear for transmission on the generator；
Drive mechanism, the drive mechanism be set to the containing box inside, the drive mechanism include fixing sleeve, transmission shaft and
Gear is driven, the transmission shaft extends to the fixing sleeve inside the containing box, the transmission through the containing box
Be rotatablely connected between axis and the fixing sleeve, the transmission shaft engages with the driving gear, and the driving gear with it is described
Transmission gear engagement；
Position limiting structure, the position limiting structure are connected to the transmission shaft, and the position limiting structure includes guide rod, reset spring, limit
Position plate and position-arresting disk, the reset spring are completely embedded into the inside of the transmission shaft, and the guide rod is through the transmission shaft
The reset spring is extended to, is slidably connected between the guide rod and the transmission shaft, for cooperating the position-arresting disk to institute
It states the limit plate that transmission shaft is limited and is perpendicularly fixed at the guide rod, the position-arresting disk is fixed on the containing box
Inner sidewall, and the limit plate is engaged with the position-arresting disk；
Driving structure, the driving structure are contradicted through the transmission shaft and the guide rod.
2. the permanent-magnet breaker according to claim 1 with hand generator, which is characterized in that the containing box is equipped with
Six insulation sleeves for insulation, the connection terminal is through the insulation sleeve, and six insulation sleeves are symmetrically set two-by-two
In the both ends of the containing box.
3. the permanent-magnet breaker according to claim 1 with hand generator, which is characterized in that the corner angle of the containing box
Place is equipped with fixed frame.
4. the permanent-magnet breaker according to claim 1 with hand generator, which is characterized in that the sealing structure includes
Sealing plate and sealing ring, the containing box is embedded with the sealing ring for sealing close to one end of the sealing plate, described
Sealing plate contradicts the sealing ring and is detachably connected with the containing box.
5. the permanent-magnet breaker according to claim 4 with hand generator, which is characterized in that the sealing plate it is transversal
Face is parallelogram sturcutre, and the junction of the sealing plate and the containing box is smooth flat.
6. the permanent-magnet breaker according to claim 1 with hand generator, which is characterized in that described to drive the straight of gear
Diameter is greater than the diameter of the transmission gear, and the diameter of the driving gear is greater than the diameter of the position-arresting disk.
7. the permanent-magnet breaker according to claim 1 with hand generator, which is characterized in that the driving structure includes
Connecting rod, drive rod, sleeve, limited post, guide sleeve and gag lever post, the connecting rod engage with the transmission shaft, the limit
Bar extends to the guide rod through the connecting rod, and the connecting rod is equipped with the guiding away from one end of the transmission shaft
Set, the limited post are connected to the guide sleeve, and the limited post is equipped with the drive rod away from one end of the guide sleeve, and
It is rotatablely connected between the drive rod and the sleeve.
8. the permanent-magnet breaker according to claim 7 with hand generator, which is characterized in that the connecting rod is close to institute
The one end for stating transmission shaft is positive hexagonal structure, and the gag lever post in the connecting rod and screw thread connects between the connecting rod
It connects, is threadedly coupled between the gag lever post and the transmission shaft, and the gag lever post is " 7 " character form structure.
9. the permanent-magnet breaker according to claim 7 with hand generator, which is characterized in that the driving structure is also wrapped
Two fixed blocks, adjusting rod and drive ring are included, two fixed blocks are individually fixed in the guide sleeve and the drive rod, institute
Adjusting rod is stated through the fixed block, the company of rotation between a fixed block on the adjusting rod and the drive rod
It connects, and is threadedly coupled between the adjusting rod and fixed block described in another, the drive ring is fixed on the adjusting rod.
10. the permanent-magnet breaker according to claim 9 with hand generator, which is characterized in that the limited post is positive
Hexagonal structure, and be slidably connected between the limited post and the guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821195155.5U CN208985915U (en) | 2018-07-26 | 2018-07-26 | A kind of permanent-magnet breaker with hand generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821195155.5U CN208985915U (en) | 2018-07-26 | 2018-07-26 | A kind of permanent-magnet breaker with hand generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985915U true CN208985915U (en) | 2019-06-14 |
Family
ID=66780458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821195155.5U Expired - Fee Related CN208985915U (en) | 2018-07-26 | 2018-07-26 | A kind of permanent-magnet breaker with hand generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208985915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382529A (en) * | 2020-11-03 | 2021-02-19 | 湖北通光电气有限公司 | Vacuum arc-extinguishing chamber contact with supporting device |
-
2018
- 2018-07-26 CN CN201821195155.5U patent/CN208985915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382529A (en) * | 2020-11-03 | 2021-02-19 | 湖北通光电气有限公司 | Vacuum arc-extinguishing chamber contact with supporting device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20210726 |