CN208560594U - Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system - Google Patents
Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system Download PDFInfo
- Publication number
- CN208560594U CN208560594U CN201821191022.0U CN201821191022U CN208560594U CN 208560594 U CN208560594 U CN 208560594U CN 201821191022 U CN201821191022 U CN 201821191022U CN 208560594 U CN208560594 U CN 208560594U
- Authority
- CN
- China
- Prior art keywords
- slideway
- scraper plate
- scrapper conveyor
- chain
- main
- Prior art date
- 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
Links
Landscapes
- Chain Conveyers (AREA)
Abstract
The utility model discloses a kind of scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system, is related to conveyer technical field, to solve existing scrapper conveyor service life and the shorter technical problem of service life.Scrapper conveyor described in the utility model, comprising: scraper plate, and the slideway of scraper plate lower end surface is set, slideway includes two main skids disposed in parallel, and the secondary slideway being arranged between two main skids, and the both ends of scraper plate are correspondingly arranged with two main skids respectively；When scraper plate is slided along slideway, scraper plate integrally can be contacted uniformly with the main skid of slideway and secondary slideway.Since slideway is provided with secondary slideway, scraper plate integrally can be contacted uniformly with the main skid of slideway and secondary slideway, so as to form the mode of uniform wear, and then effectively extend the service life and service life of scraper plate.
Description
Technical field
The utility model relates to conveyer technical field, in particular to a kind of scrapper conveyor, the scraper plate with herringbone slideway
Machine, transportation system.
Background technique
Scrapper conveyor is scraper plate chain haulage, the conveyer of transferring bulk cargo in slot, be coal mine, chemical mine, metal mine and
Power plant etc. is used to convey the important transportation tool of material.
Comparatively maintenance capacity is less for scrapper conveyor, and accident rate is lower, can be good at meeting daily transport needs, maintenance at
This is not relatively high, and main rapid wear accessory is chain, scraper plate, and driving device sprocket wheel drives chain to break away in groove body two in operational process
It is run on road.
Present inventor's discovery, existing scrapper conveyor are equipped with the slideway of two sides, and scraper plate runs on slideway, two sides by
Force exactly the bolt hole position that scraper plate both sides are connect with connection ring and the scraper plate ear that we often say, wear herein compared with
Be it is serious, be easy to cause scraper plate to replace because wearing herein, so that scraper plate service life is shorter.
Therefore, how a kind of scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system are provided, can effectively be extended
The service life and service life of scraper plate, it has also become the technical issues of those skilled in the art's urgent need to resolve.
Utility model content
The purpose of this utility model is to provide a kind of scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system, with
Solve existing scrapper conveyor service life and the shorter technical problem of service life.
The utility model provides a kind of scrapper conveyor, comprising: scraper plate, and the slideway of the scraper plate lower end surface, institute are set
Stating slideway includes two main skids disposed in parallel, and the secondary slideway being arranged between two main skids, and described is scraped
The both ends of plate are correspondingly arranged with two main skids respectively；When the scraper plate is slided along the slideway, the scraper plate can be whole
Body is uniformly contacted with the main skid of the slideway and the secondary slideway.
When practical application, in scrapper conveyor described in the utility model, it is described pair slideway include it is multiple interval, it is disposed in parallel
First secondary slideway, and the described first secondary slideway is inclined between two main skids.
Wherein, in scrapper conveyor described in the utility model, the pair slideway further includes multiple intervals, disposed in parallel second
Secondary slideway, and the described second secondary slideway is inclined between two main skids；Described first secondary slideway and described second
The inclined direction of secondary slideway is opposite.
Specifically, in scrapper conveyor described in the utility model, a first secondary slideway and adjacent one described the
Second mate's slideway forms inverted V-shape structure.
Further, in scrapper conveyor described in the utility model, multiple inverted V-shape structures are continuously arranged.
Alternatively, in scrapper conveyor described in the utility model, multiple inverted V-shape spacing structure settings, and uniformly
Distribution.
When practical application, scrapper conveyor described in the utility model further include: the chain on the outside of every main skid is set
Item, the both ends of the scraper plate pass through connection ring respectively and connect with the chain, and the chain is connected with driving device；It is described to scrape
When plate slideway described in the driving device and the drive lower edge of the chain slides, the scraper plate can integrally with the slideway
The main skid and the secondary slideway uniformly contact.
Specifically, in scrapper conveyor described in the utility model, the chain uses round-link chain.
Compared with the existing technology, scrapper conveyor described in the utility model has the advantage that
In scrapper conveyor provided by the utility model, comprising: scraper plate, and the slideway of scraper plate lower end surface is set, slideway packet
Two main skids disposed in parallel are included, and the secondary slideway being arranged between two main skids, and the both ends of scraper plate are respectively with two
Main skid is correspondingly arranged；When scraper plate is slided along slideway, scraper plate integrally can be contacted uniformly with the main skid of slideway and secondary slideway.
From this analysis, in scrapper conveyor provided by the utility model, since slideway is provided with secondary slideway, scraper plate can integrally with
The main skid of slideway and secondary slideway uniformly contact, and so as to form the mode of uniform wear, and then effectively extend making for scraper plate
With period and service life.Also, it concludes that through field test using scrapper conveyor provided by the utility model, with existing skill
Scrapper conveyor in art is compared, and can effectively be extended twice of service life or more.
The utility model also provides a kind of scrapper conveyor with herringbone slideway, comprising: herringbone slideway, the herringbone
Slideway includes two main skids disposed in parallel, and the multiple secondary slideways being continuously disposed between two main skids, often
A secondary slideway includes the first secondary slideway and the second pair slideway, and the described first secondary slideway and the second secondary slideway are in V
Font distribution；Chain is equipped on the outside of every main skid, the both ends of scraper plate pass through connection ring respectively and the chain connects
It connects, and the chain is connected with driving device；Scraper plate people described in the driving device and the drive lower edge of the chain
When font slideway slides, the scraper plate can be integrally sliding with the main skid of the herringbone slideway and first pair
Road and the second secondary slideway uniformly contact.
Possessed advantage is identical compared with the existing technology with above-mentioned scrapper conveyor for the scrapper conveyor with herringbone slideway,
Details are not described herein.
The utility model provides a kind of transportation system again, comprising: scrapper conveyor as described in any one of the above embodiments；Or, as above-mentioned
The scrapper conveyor with herringbone slideway.
Scrapper conveyor of the transportation system with above-mentioned scrapper conveyor and with herringbone slideway is had compared with the existing technology
Advantage it is identical, details are not described herein.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the first form of scrapper conveyor provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of second of form of scrapper conveyor provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the third form of scrapper conveyor provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the 4th kind of form of scrapper conveyor provided by the embodiment of the utility model.
In figure: 1- scraper plate；2- slideway；21- main skid；22- pair slideway；The secondary slideway of 221- first；222- second
Secondary slideway；3- chain；4- connection ring.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the system of indication or suggestion meaning or element must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, it can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Fig. 1 is the structural schematic diagram of the first form of scrapper conveyor provided by the embodiment of the utility model；Fig. 2 is that this is practical
The structural schematic diagram of second of form of the scrapper conveyor that new embodiment provides；Fig. 3 is provided by the embodiment of the utility model scrapes
The structural schematic diagram of the third form of trigger；Fig. 4 is the 4th kind of form of scrapper conveyor provided by the embodiment of the utility model
Structural schematic diagram.
As Figure 1-Figure 4, the utility model embodiment provides a kind of scrapper conveyor, comprising: scraper plate 1, and setting are being scraped
The slideway 2 of 1 lower end surface of plate, slideway 2 includes two main skids 21 disposed in parallel, and is arranged between two main skids 21
Secondary slideway 22, and the both ends of scraper plate 1 are correspondingly arranged with two main skids 21 respectively；When scraper plate 1 is slided along slideway 2, scraper plate 1 can
It is whole uniformly to be contacted with the main skid 21 of slideway 2 and secondary slideway 22.
Compared with the existing technology, scrapper conveyor described in the utility model embodiment has the advantage that
In scrapper conveyor provided by the embodiment of the utility model, as Figure 1-Figure 4, comprising: scraper plate 1, and setting are being scraped
The slideway 2 of 1 lower end surface of plate, slideway 2 includes two main skids 21 disposed in parallel, and is arranged between two main skids 21
Secondary slideway 22, and the both ends of scraper plate 1 are correspondingly arranged with two main skids 21 respectively；When scraper plate 1 is slided along slideway 2, scraper plate 1 can
It is whole uniformly to be contacted with the main skid 21 of slideway 2 and secondary slideway 22.From this analysis, provided by the embodiment of the utility model scrape
In trigger, since slideway 2 is provided with secondary slideway 22, scraper plate 1 can be integrally equal with the main skid 21 of slideway 2 and secondary slideway 22
Even contact so as to form the mode of uniform wear, and then effectively extends the service life and service life of scraper plate 1.Also,
It concludes that through field test using scrapper conveyor provided by the utility model, compared with scrapper conveyor in the prior art, Neng Gouyou
Twice of service life of effect extension or more.
When practical application, as shown in Figure 1, in scrapper conveyor provided by the embodiment of the utility model, above-mentioned pair slideway 22 can be with
Including multiple intervals, the first secondary slideway 221 disposed in parallel, and the first secondary slideway 221 be inclined at two main skids 21 it
Between.
Wherein, as shown in Fig. 2, in scrapper conveyor provided by the embodiment of the utility model, above-mentioned pair slideway 22 can also include
Multiple intervals, the disposed in parallel second secondary slideway 222, and the second secondary slideway 222 is inclined between two main skids 21；Together
When, the first secondary slideway 221 is opposite with the second secondary inclined direction of slideway 222.
Specifically, as shown in Figure 3 and Figure 4, in scrapper conveyor provided by the embodiment of the utility model, one first secondary slideway
221 form inverted V-shape structure with adjacent one second secondary slideway 222.
Further, multiple by the first secondary slideway 221 as shown in figure 3, in scrapper conveyor provided by the embodiment of the utility model
The inverted V-shape structure formed with the second secondary slideway 222 can be continuously arranged.
Alternatively, multiple by the first secondary slideway 221 as shown in figure 4, in scrapper conveyor provided by the embodiment of the utility model
The inverted V-shape structure formed with the second secondary slideway 222 can be spaced setting, and be uniformly distributed.
When practical application, as Figure 1-Figure 4, scrapper conveyor provided by the embodiment of the utility model can also include: setting
Chain 3 in every 21 outside of main skid, the both ends of scraper plate 1 pass through connection ring 4 respectively and connect with chain 3, and chain 3 is connected with
Driving device；In use process, when scraper plate 1 slides under the drive of driving device and chain 3 along slideway 2, scraper plate 1 can be whole
It is uniformly contacted with the main skid 21 of slideway 2 and secondary slideway 22, so as to form the mode of uniform wear, and then effectively extends and scrape
The service life and service life of plate 1.
Specifically, for the ease of assembling, in scrapper conveyor provided by the embodiment of the utility model, above-mentioned chain 3 can be used
Round-link chain.
As shown in figure 3, the utility model embodiment also provides a kind of scrapper conveyor with herringbone slideway, comprising: herringbone
Shape slideway, which may include two main skids 21 disposed in parallel, and be continuously disposed in two main skids 21
Between multiple secondary slideways 22, each pair slideway 22 may include the first secondary slideway 221 and the second secondary slideway 222, and first is secondary
Slideway 221 and the second secondary slideway 222 are distributed in inverted V-shape；Specifically, the outside of every main skid 21 can be equipped with chain 3,
The both ends of scraper plate 1 can be connect by connection ring 4 with chain 3 respectively, and the chain 3 is connected with driving device；In use process,
When scraper plate 1 slides under the drive of driving device and chain 3 along herringbone slideway, scraper plate 1 can integrally with herringbone slideway
Main skid 21 and the first secondary slideway 221 and the second secondary uniformly contact of slideway 222, so as to form the mode of uniform wear,
And then effectively extend the service life and service life of scraper plate 1.
The utility model embodiment provides a kind of transportation system again, comprising: scrapper conveyor as described in any one of the above embodiments.Due to
Slideway 2 is provided with secondary slideway 22, therefore scraper plate 1 integrally can be contacted uniformly with the main skid 21 of slideway 2 and secondary slideway 22, thus
It is capable of forming the mode of uniform wear, and then effectively extends the service life and service life of scraper plate 1.Also, through field test
Use can effectively be extended compared with scrapper conveyor in the prior art using scrapper conveyor provided by the utility model by concluding that
Twice of period or more.
When practical application, as shown in Figure 1, in transportation system provided by the embodiment of the utility model, the pair of above-mentioned scrapper conveyor
Slideway 22 may include multiple intervals, the disposed in parallel first secondary slideway 221, and the first secondary slideway 221 is inclined at two
Between main skid 21.
Wherein, as shown in Fig. 2, in transportation system provided by the embodiment of the utility model, the secondary slideway 22 of above-mentioned scrapper conveyor
It can also include multiple intervals, the disposed in parallel second secondary slideway 222, and the second secondary slideway 222 is inclined at two main cunnings
Between road 21；Meanwhile first secondary slideway 221 it is opposite with the second pair inclined direction of slideway 222.
Specifically, as shown in Figure 3 and Figure 4, in transportation system provided by the embodiment of the utility model, the one of above-mentioned scrapper conveyor
A first secondary slideway 221 forms inverted V-shape structure with adjacent one second secondary slideway 222.
Further, as shown in figure 3, in transportation system provided by the embodiment of the utility model, above-mentioned scrapper conveyor it is multiple
Can continuously it be arranged by the inverted V-shape structure that the first secondary slideway 221 and the second secondary slideway 222 are formed.
Alternatively, as shown in figure 4, in transportation system provided by the embodiment of the utility model, above-mentioned scrapper conveyor it is multiple
Setting can be spaced by the inverted V-shape structure that the first secondary slideway 221 and the second secondary slideway 222 are formed, and be uniformly distributed.
When practical application, as Figure 1-Figure 4, in transportation system provided by the embodiment of the utility model, above-mentioned scrapper conveyor
It can also include: the chain 3 that 21 outside of every main skid is set, the both ends of scraper plate 1 pass through connection ring 4 respectively and chain 3 connects
It connects, and chain 3 is connected with driving device；In use process, scraper plate 1 is slided under the drive of driving device and chain 3 along slideway 2
When, scraper plate 1 integrally can be contacted uniformly with the main skid 21 of slideway 2 and secondary slideway 22, so as to form the side of uniform wear
Formula, and then effectively extend the service life and service life of scraper plate 1.
Specifically, for the ease of assembling, in transportation system provided by the embodiment of the utility model, the chain of above-mentioned scrapper conveyor
3 can use round-link chain.
The utility model embodiment provides a kind of transportation system again, comprising: as described above with herringbone slideway
Scrapper conveyor.As shown in figure 3, it includes: herringbone slideway that this, which has the scrapper conveyor of herringbone slideway, which may include
Two main skids 21 disposed in parallel, and the multiple secondary slideways 22 being continuously disposed between two main skids 21 are each secondary sliding
Road 22 may include the first pair slideway 221 and the second secondary slideway 222, and the first secondary slideway 221 and the second secondary slideway 222 are in V
Font distribution；Specifically, the outside of every main skid 21 can be equipped with chain 3, and the both ends of scraper plate 1 can pass through connection respectively
Ring 4 is connect with chain 3, and the chain 3 is connected with driving device；In use process, scraper plate 1 is in driving device and the band of chain 3
When being slided under dynamic along herringbone slideway, scraper plate 1 can integrally with the main skid 21 of herringbone slideway and the first secondary slideway 221
With the second uniformly contact of pair slideway 222, so as to form the mode of uniform wear, and then it is all effectively to extend using for scraper plate 1
Phase and service life.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of scrapper conveyor characterized by comprising scraper plate, and the slideway of the scraper plate lower end surface, the slideway are set
Including two main skids disposed in parallel, and the secondary slideway being arranged between two main skids, and the two of the scraper plate
End is correspondingly arranged with two main skids respectively；
When the scraper plate is slided along the slideway, the scraper plate can be integrally sliding with the main skid of the slideway and the pair
Road uniformly contacts.
2. scrapper conveyor according to claim 1, which is characterized in that it is described pair slideway include it is multiple interval, it is disposed in parallel
First secondary slideway, and the described first secondary slideway is inclined between two main skids.
3. scrapper conveyor according to claim 2, which is characterized in that the pair slideway further includes multiple intervals, is arranged in parallel
The second secondary slideway, and the described second secondary slideway is inclined between two main skids；
Described first secondary slideway is opposite with the described second secondary inclined direction of slideway.
4. scrapper conveyor according to claim 3, which is characterized in that described in a first secondary slideway and adjacent one
Second secondary slideway forms inverted V-shape structure.
5. scrapper conveyor according to claim 4, which is characterized in that multiple inverted V-shape structures are continuously arranged.
6. scrapper conveyor according to claim 4, which is characterized in that multiple inverted V-shape spacing structure settings, and uniformly
Distribution.
7. scrapper conveyor according to claim 1 to 6, which is characterized in that further include: it is arranged in every master
Chain on the outside of slideway, the both ends of the scraper plate pass through connection ring respectively and connect with the chain, and the chain is connected with drive
Dynamic device；
When scraper plate slideway described in the driving device and the drive lower edge of the chain slides, the scraper plate can be whole
It is uniformly contacted with the main skid of the slideway and the secondary slideway.
8. scrapper conveyor according to claim 7, which is characterized in that the chain uses round-link chain.
9. a kind of scrapper conveyor with herringbone slideway characterized by comprising herringbone slideway, the herringbone slideway packet
Two main skids disposed in parallel are included, and the multiple secondary slideways being continuously disposed between two main skids, it is each described
Secondary slideway includes the first secondary slideway and the second secondary slideway, and the described first secondary slideway and the second secondary slideway are in inverted V-shape point
Cloth；
Chain is equipped on the outside of every main skid, the both ends of scraper plate pass through connection ring respectively and connect with the chain, and
The chain is connected with driving device；Scraper plate herringbone described in the driving device and the drive lower edge of the chain is sliding
When road slides, the scraper plate can integrally with the main skid of the herringbone slideway and the first secondary slideway and institute
The second secondary slideway is stated uniformly to contact.
10. a kind of transportation system characterized by comprising such as above-mentioned scrapper conveyor of any of claims 1-8；
Or, such as the above-mentioned scrapper conveyor as claimed in claim 9 with herringbone slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191022.0U CN208560594U (en) | 2018-07-26 | 2018-07-26 | Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821191022.0U CN208560594U (en) | 2018-07-26 | 2018-07-26 | Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208560594U true CN208560594U (en) | 2019-03-01 |
Family
ID=65448070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821191022.0U Expired - Fee Related CN208560594U (en) | 2018-07-26 | 2018-07-26 | Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208560594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861880A (en) * | 2019-11-19 | 2020-03-06 | 江苏长虹智能装备股份有限公司 | Adjustable structure of guide rail |
-
2018
- 2018-07-26 CN CN201821191022.0U patent/CN208560594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861880A (en) * | 2019-11-19 | 2020-03-06 | 江苏长虹智能装备股份有限公司 | Adjustable structure of guide rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202935903U (en) | Cleaning device for belt conveyor | |
| CN208560594U (en) | Scrapper conveyor, the scrapper conveyor with herringbone slideway, transportation system | |
| CN2910852Y (en) | Connection ring for drag-flight conveyer of mining use | |
| CN208932283U (en) | A kind of fully-mechanized digging machine scrapper conveyor scraper improvement device | |
| CN204453579U (en) | Novel concrete grog tray conveyer | |
| CN205771489U (en) | Many chain-and-flight conveyers and flight chain of drag-flight conveyer thereof | |
| CN103538867A (en) | Scraper capable of being efficient and reducing operation cost of scraper conveyer | |
| CN210064198U (en) | Scraper zipper conveyor with conveying carrier rollers | |
| CN207417729U (en) | A kind of split type scraper plate | |
| CN202967494U (en) | Transmission device for mining crawler-type conveyer | |
| CN204847136U (en) | Colliery scratch board conveyor scrape plate structure | |
| CN107662795A (en) | A kind of split type scraper plate | |
| CN203568348U (en) | Scraper chain for novel scraper conveyer | |
| CN203699278U (en) | Anti-damage belt type empty segment sweeper of rubber belt conveyor | |
| CN201268502Y (en) | Scraper conveyor for fine viscous material | |
| CN203512583U (en) | Efficient and operating-cost-saving scraper conveyer scraping plate | |
| CN208916031U (en) | Belt scraper chain conveyer | |
| CN202912265U (en) | Welded scraping plate of heavy-duty scrapper | |
| CN214778884U (en) | Roller with cleaning function | |
| CN205990022U (en) | A kind of movable liner plate for discharge funnel | |
| CN205471374U (en) | Compound ceramic sweeper | |
| CN203714596U (en) | Steel belt type conveyor for conveying quartz sands of casting factory | |
| CN103287798A (en) | Split type scraper component and conveying equipment | |
| CN110668086A (en) | External scraper feeder of chain | |
| CN208666241U (en) | A kind of alloy link set of drag conveyor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190301 |