CN108859609B - Modularized clamping type metal elastic tire - Google Patents
Modularized clamping type metal elastic tire Download PDFInfo
- Publication number
- CN108859609B CN108859609B CN201810889516.4A CN201810889516A CN108859609B CN 108859609 B CN108859609 B CN 108859609B CN 201810889516 A CN201810889516 A CN 201810889516A CN 108859609 B CN108859609 B CN 108859609B
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- Prior art keywords
- elastic
- tire
- tire body
- module
- arc
- Prior art date
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- 239000002184 metal Substances 0.000 title claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/06—Non-inflatable or solid tyres made of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/24—Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body
- B60C7/26—Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body using bolts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a modularized clamping type metal elastic tire, and relates to the technical field of automobile parts. The elastic tire comprises a hub, a rim is arranged on the hub, a tire body installation groove is formed in the rim, the tire further comprises a plurality of elastic tire body modules, the elastic tire body modules are fixedly connected in sequence along the circumferential direction of the tire body installation groove to form a tire body, and the clamping protruding blocks are embedded into rectangular fixing holes on the surface of the elastic tire body modules and distributed in a staggered mode along the circumferential direction and the lateral direction of the elastic tire body modules. The elastic carcass module and the clamping and stacking lug are singly damaged, the whole performance of the tire is not affected, the tire can be replaced and maintained, the characteristics of variable rigidity and the like are achieved, the tire is free of inflation, pricking is prevented, the application environment range is wide, hysteresis loss caused by deformation of the elastic carcass module and the clamping and stacking lug is small, and the energy consumption for overcoming the elastic hysteresis loss is small.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a modularized clamping type metal elastic tire.
Background
Tires are ground-engaging rolling annular components mounted on various wheeled vehicles or machines and mounted on hubs for direct contact with the road surface. The main functions of the tire are: supporting the whole vehicle; the impact force transmitted by the road surface is relaxed; the traction, braking and passing performance of the vehicle are ensured through the adhesion between the tire and the road surface. In addition to air forces and gravity, other forces and moments affecting movement of the wheeled vehicle are created by the interaction of the tires with the ground.
As an important component of the wheeled military vehicle, the tire not only meets the basic functions, but also ensures that the tire can bear the functions of penetration of foreign matters, penetration of elastic sheets and high and low temperatures, and can adapt to complex and harsh battlefield use environments.
Currently, pneumatic rubber tires are commonly used for military wheeled vehicles, wherein some combat vehicles employ internally supported pneumatic rubber tires. Due to the material property of rubber, the rubber tire has weak anti-damage capability, and is difficult to resist ground sharp object puncture or light weapon attack; when the vehicle runs at a high speed, the rubber tire has standing wave phenomenon, and tire burst is easy to occur; the performance index of the rubber tire is obviously reduced under the high-temperature and low-temperature limit environment; after the inflatable rubber tire leaks, the distance that the vehicle continues to travel is relatively close, and the battlefield maneuverability of the military vehicle is affected. Meanwhile, when the outer tire of the inflatable rubber tire is damaged, the whole outer tire is required to be replaced, and the maintenance is expensive.
Disclosure of Invention
The invention aims to solve the technical problem of providing a modularized clamping type metal elastic tire which can improve the running smoothness of a vehicle and avoid the problem of tire puncture and tire burst.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a modularization card is folded formula metal elastic tire, includes wheel hub, be provided with the rim on the wheel hub, be formed with matrix mounting groove on the rim, its characterized in that: the tire also comprises a plurality of elastic tire body modules, wherein the elastic tire body modules are fixedly connected in sequence along the circumferential direction of the tire body mounting groove to form a tire body, and the clamping convex blocks are embedded into rectangular fixing holes on the surface of the elastic tire body modules and distributed in a staggered manner along the circumferential direction and the lateral direction of the elastic tire body modules.
The further technical proposal is that: two circles of fixing threaded holes are symmetrically formed in the tire body mounting groove of the rim along the circumferential direction of the rim; the elastic tire body module comprises a module arc-shaped shell which is integrally in an inverted U shape, a group of bottom elastic pieces which are bent inwards and two groups of elastic hooks which are bent outwards are symmetrically arranged on the lower side of the module arc-shaped shell, the bottom elastic pieces are positioned between the two elastic hooks on the same side, elastic piece threaded holes which are matched with the fixing threaded holes are formed in the bottom elastic pieces, and the elastic tire body module is fixed in the tire body installation groove after bolts sequentially penetrate through the fixing threaded holes and the elastic piece threaded holes.
The further technical proposal is that: the rectangular fixing holes are formed along the circumferential direction and the lateral direction of the upper side surface of the module arc-shaped shell, semi-rectangular holes are formed in the two circumferential ends of the elastic carcass module, and when the elastic carcass module is installed, one semi-rectangular hole in one circumferential end of the module arc-shaped shell and the other semi-rectangular hole in the circumferential end of the module arc-shaped shell adjacent to the semi-rectangular hole form a complete rectangular fixing hole together.
The further technical proposal is that: and a carcass circular lightening hole is formed between the rectangular fixing hole on the module arc-shaped shell and the bottom elastic sheet and between the module arc-shaped shell and the elastic hook.
The further technical proposal is that: the clamping and stacking lug comprises a lug arc-shaped shell, and inwards bent clamping hook parts are arranged on the front side, the rear side, the left side and the right side of the lug arc-shaped shell and are embedded into rectangular fixing holes on the elastic carcass module for fixing; the lug arc-shaped shell is provided with a lug round lightening hole.
The further technical proposal is that: five lug round lightening holes are formed in each clamping lug, one lug round lightening hole is located in the center of the lug arc-shaped shell, and the other four lug round lightening holes are located at the junction of the clamping hook portion and the lug arc-shaped shell respectively.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the tire body is arranged in the tire body mounting groove of the rim, the tire body is composed of a plurality of elastic tire body modules, each elastic tire body module is fixedly connected with the inner surface of the rim through a bottom elastic sheet and an elastic curved hook, a plurality of staggered clamping and folding convex blocks are respectively clamped in the circumferential direction and the lateral direction of the tire body, overlapping parts are always reserved between the adjacent clamping and folding convex blocks on the circumference of the tire body through the staggered distribution of the clamping and folding convex blocks, continuous ground contact deformation of the clamping and folding convex blocks in the tire rolling process is realized, the smoothness of vehicle running is improved, the modular design of the elastic tire body modules and the clamping and folding convex blocks ensures that the normal running of the tire is not influenced when a single part has a problem, the driving safety is improved, and particularly the clamping and folding convex blocks are used as main grounding abrasion parts. Meanwhile, as the whole elastic tire adopts a non-inflatable structure, the tire body and the clamping and folding convex blocks are all made of metal materials, the problem of puncture and tire burst of the tire is radically avoided, and the elastic tire can be widely applied to the fields of military off-road vehicles, agricultural mechanical equipment, aerospace vehicles and the like.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a partially exploded construction of an elastic tire according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rim in an elastic tire according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of an elastomeric carcass module in an elastomeric tire according to an embodiment of the present invention;
FIG. 4 is a schematic view of a snap-on bump in an elastic tire according to an embodiment of the present invention;
wherein: 10. hub 20, rim 21, matrix mounting groove 22, fixed screw hole 30, elastic matrix module 31, rectangle fixed orifices 32, matrix circular lightening hole 33, bottom shell fragment 34, elastic curved hook 35, module arc shell 36, shell fragment screw hole 37, half rectangular hole 40, card fold lug 41, lug circular lightening hole 42, trip portion 43, lug arc shell.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the invention discloses a modularized clamping type metal elastic tire, which comprises a hub 10, wherein a rim 20 is arranged on the hub 10, a carcass installation groove is formed on the rim 20, and the specific structure of the hub 10 is not described in detail in the prior art. The invention differs from the prior art in that: the tire further comprises a plurality of elastic tire body modules 30, the elastic tire body modules 30 are fixedly connected in sequence along the circumferential direction of the tire body mounting groove to form a tire body, and the clamping and stacking lugs 40 are embedded into rectangular fixing holes 31 on the surface of the elastic tire body modules 30 and distributed in a staggered manner along the circumferential direction and the lateral direction of the elastic tire body modules 30.
Because the tire body is formed by splicing a plurality of metal elastic tire body modules 3, when one of the elastic tire body modules 3 is damaged, only the damaged elastic tire body module 3 is required to be maintained and replaced, and the whole tire body is not required to be replaced, so that the maintenance cost is reduced, and the maintenance consumable parts are reduced. Meanwhile, the tire body is formed by splicing a plurality of metal elastic tire body modules 3, so that the tire body can be assembled and disassembled conveniently, and when the tire body is made of metal and is applied to agricultural machinery and military vehicles, the safety and environmental adaptability of the vehicle can be improved effectively, and the puncture and tire burst phenomena of rubber tires can be avoided effectively.
Further, as shown in fig. 2, two circles of fixing threaded holes 22 are symmetrically arranged in the carcass mounting groove 21 of the rim 20 along the circumferential direction of the rim 20; as shown in fig. 3, the elastic carcass module 30 includes a module arc-shaped shell 35 which is an inverted U-shape integrally, and the module arc-shaped shell 35 can be formed by punching and bending a metal sheet, so that the material consumption and the mold processing cost are greatly reduced. The lower side of the module arc-shaped shell 35 is symmetrically provided with a group of bottom elastic pieces 33 which are bent inwards and two groups of elastic hooks 34 which are bent outwards, and the bottom elastic pieces 33 are positioned between the two elastic hooks 34 on the same side. The bottom spring 33 is provided with a spring threaded hole 36 adapted to the fixing threaded hole, and the elastic carcass module 30 is fixed in the carcass installation groove 21 after the bolts sequentially pass through the fixing threaded hole 22 and the spring threaded hole 36.
Further, as shown in fig. 3, the rectangular fixing holes 31 are disposed along the circumferential direction and the lateral direction of the upper side surface of the module arc-shaped shell 35, and the two circumferential ends of the elastic carcass module 30 are provided with half rectangular holes 37, when the elastic carcass module 30 is installed, the half rectangular hole 37 at one circumferential end of one module arc-shaped shell 35 and the half rectangular hole 37 at one circumferential end of the other module arc-shaped shell 35 adjacent to the half rectangular hole together form a complete rectangular fixing hole 31. A carcass circular lightening hole 32 is arranged between the rectangular fixing hole 31 on the module arc-shaped shell 35 and the bottom elastic sheet 33 and the elastic hook 34.
The semi-rectangular holes 37 at two circumferential ends of the elastic carcass modules 30 facilitate the clamping and stacking lugs 40 to be simultaneously embedded into two adjacent elastic carcass modules 30, so that the two elastic carcass modules 30 are fixedly connected. The bottom spring plate 33 and the elastic hook 34 are designed at the bottom of the elastic carcass module, and the elastic carcass module 30 can be radially fixed on the surface of the rim. The rectangular fixing holes 31 on the elastic carcass module 30 are not only used for fixing the stacking lugs 40, but also greatly reduce the weight of the tire.
Further, as shown in fig. 4, the stacking projection 40 includes a projection arc-shaped shell 43, and inward curved hook portions 42 are disposed on front, rear, left and right sides of the projection arc-shaped shell 43, and are inserted into rectangular fixing holes 31 on the elastic carcass module for fixing; the convex arc-shaped shell 43 is provided with a convex circular lightening hole 41. Preferably, each of the stacking lugs 40 is provided with five lug round lightening holes 41, one lug round lightening hole 41 is located at the center of the lug arc-shaped shell 43, and the other four lug round lightening holes 41 are respectively located at the junction of the hook portion 42 and the lug arc-shaped shell 43.
When the vehicle runs, the clamping and folding lug 40 firstly contacts the ground to generate elastic deformation, the service life of the clamping and folding lug 40 is prolonged through abrasion resistance treatment, the lug arc shell 43 of the clamping and folding lug 40 contacts the surface of the elastic carcass module 30 in the deformation process, the module arc shell 35 of the elastic carcass module 30 is compressed to generate elastic deformation, the design of the arc shell can ensure that the structure has good rigidity characteristics, and structural damage and strength effect caused by excessive deformation are prevented. The cross structure of the overlapped lug 40 plays a role of pattern, and can remarkably improve the adhesive capability of the tire. The clamping convex blocks are embedded into the elastic modules in a staggered manner, so that the convex blocks can be enabled to roll in a continuous contact manner when the vehicle runs, and the driving smoothness of the vehicle is improved.
The elastic carcass module 30 and the clamping and stacking lug 40 are made of metal materials, so that the whole performance of the tire is not affected by single damage, the tire can be replaced and maintained, the tire has the characteristics of variable rigidity and the like, the tire is free of inflation, puncture resistance is avoided, the application environment range is wide, hysteresis loss generated by deformation of the elastic carcass module 30 and the clamping and stacking lug 40 is small, the energy consumed by elastic hysteresis loss is small, the modularized clamping and stacking type metal elastic tire is good in bearing performance and elasticity, the manufacturing process is simple, the environmental pollution is small, and the recycling rate is high.
Claims (4)
1. The utility model provides a modularization card is folded formula metal elastic tire, includes wheel hub (10), be provided with rim (20) on wheel hub (10), be formed with matrix mounting groove on rim (20), its characterized in that: the tire also comprises a plurality of elastic tire body modules (30), wherein the elastic tire body modules (30) are sequentially and fixedly connected along the circumferential direction of the tire body mounting groove to form a tire body, and the clamping convex blocks (40) are embedded into rectangular fixing holes (31) on the surface of the elastic tire body modules (30) and distributed in a staggered manner along the circumferential direction and the lateral direction of the elastic tire body modules (30);
two circles of fixing threaded holes (22) are symmetrically formed in a carcass mounting groove (21) of the rim (20) along the circumferential direction of the rim (20); the elastic tire body module (30) comprises a module arc-shaped shell (35) which is integrally in an inverted U shape, a group of bottom elastic pieces (33) which are bent inwards and two groups of elastic hooks (34) which are bent outwards are symmetrically arranged on the lower side of the module arc-shaped shell (35), the bottom elastic pieces (33) are positioned between the two elastic hooks (34) on the same side, elastic piece threaded holes (36) which are matched with the fixing threaded holes are formed in the bottom elastic pieces (33), and after bolts sequentially pass through the fixing threaded holes (22) and the elastic piece threaded holes (36), the elastic tire body module (30) is fixed in the tire body mounting groove (21);
the clamping convex blocks (40) comprise convex block arc-shaped shells (43), the front, back, left and right sides of the convex block arc-shaped shells (43) are provided with inwards bent clamping hook parts (42), and the clamping hook parts are embedded into rectangular fixing holes (31) on the elastic carcass module for fixing; the lug arc-shaped shell (43) is provided with a lug round lightening hole (41).
2. The modular, stacked metal spring tire of claim 1, wherein: the rectangular fixing holes (31) are formed along the circumferential direction and the lateral direction of the upper side surface of the module arc-shaped shell (35), semi-rectangular holes (37) are formed in the two circumferential ends of the elastic carcass module (30), and when the elastic carcass module (30) is installed, one semi-rectangular hole (37) at one circumferential end of the module arc-shaped shell (35) and the semi-rectangular hole (37) at one circumferential end of the adjacent module arc-shaped shell (35) form a complete rectangular fixing hole (31).
3. The modular, stacked metal spring tire of claim 1, wherein: a carcass circular lightening hole (32) is formed between the rectangular fixing hole (31) on the module arc-shaped shell (35) and the bottom elastic sheet (33) and the elastic hook (34).
4. The modular, stacked metal spring tire of claim 1, wherein: five lug round lightening holes (41) are formed in each clamping lug (40), one lug round lightening hole (41) is located in the center of the lug arc-shaped shell (43), and the other four lug round lightening holes (41) are located at the junction of the clamping hook portion (42) and the lug arc-shaped shell (43) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889516.4A CN108859609B (en) | 2018-08-07 | 2018-08-07 | Modularized clamping type metal elastic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889516.4A CN108859609B (en) | 2018-08-07 | 2018-08-07 | Modularized clamping type metal elastic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108859609A CN108859609A (en) | 2018-11-23 |
| CN108859609B true CN108859609B (en) | 2023-11-24 |
Family
ID=64317218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810889516.4A Active CN108859609B (en) | 2018-08-07 | 2018-08-07 | Modularized clamping type metal elastic tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108859609B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451838B (en) * | 2022-02-23 | 2023-04-28 | 深圳市无限动力发展有限公司 | Roller with obstacle crossing function and floor sweeping machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005186867A (en) * | 2003-12-26 | 2005-07-14 | Toyoharu Maeda | Bicycle tubeless rubber tire device, and bicycle equipped therewith |
| CN101973186A (en) * | 2010-09-20 | 2011-02-16 | 北京化工大学 | Elastic unit integral intelligent safety tire and manufacturing method thereof |
| CN102950971A (en) * | 2012-12-02 | 2013-03-06 | 肖峰 | Non-inflatable dual ring anti-explosion tyre |
| CN205326705U (en) * | 2016-01-27 | 2016-06-22 | 吕建刚 | Modularization metal spring tire |
| CN107364284A (en) * | 2017-07-20 | 2017-11-21 | 吕建刚 | Double rigidity modular metal elastic tyres |
| CN207274297U (en) * | 2017-07-20 | 2018-04-27 | 吕建刚 | A kind of Wedged sectional type metallic elastic tire |
| CN207617439U (en) * | 2017-12-15 | 2018-07-17 | 中国人民解放军陆军工程大学 | Embedding glue formula modular metal elastic tyre |
| CN208558895U (en) * | 2018-08-07 | 2019-03-01 | 河北刚力金属轮胎科技有限公司 | Modular card stacked metallic elastic tire |
-
2018
- 2018-08-07 CN CN201810889516.4A patent/CN108859609B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005186867A (en) * | 2003-12-26 | 2005-07-14 | Toyoharu Maeda | Bicycle tubeless rubber tire device, and bicycle equipped therewith |
| CN101973186A (en) * | 2010-09-20 | 2011-02-16 | 北京化工大学 | Elastic unit integral intelligent safety tire and manufacturing method thereof |
| CN102950971A (en) * | 2012-12-02 | 2013-03-06 | 肖峰 | Non-inflatable dual ring anti-explosion tyre |
| CN205326705U (en) * | 2016-01-27 | 2016-06-22 | 吕建刚 | Modularization metal spring tire |
| CN107364284A (en) * | 2017-07-20 | 2017-11-21 | 吕建刚 | Double rigidity modular metal elastic tyres |
| CN207274297U (en) * | 2017-07-20 | 2018-04-27 | 吕建刚 | A kind of Wedged sectional type metallic elastic tire |
| CN207617439U (en) * | 2017-12-15 | 2018-07-17 | 中国人民解放军陆军工程大学 | Embedding glue formula modular metal elastic tyre |
| CN208558895U (en) * | 2018-08-07 | 2019-03-01 | 河北刚力金属轮胎科技有限公司 | Modular card stacked metallic elastic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108859609A (en) | 2018-11-23 |
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