CN113152797A - Waterproof photovoltaic roof installation system - Google Patents
Waterproof photovoltaic roof installation system Download PDFInfo
- Publication number
- CN113152797A CN113152797A CN202110168690.1A CN202110168690A CN113152797A CN 113152797 A CN113152797 A CN 113152797A CN 202110168690 A CN202110168690 A CN 202110168690A CN 113152797 A CN113152797 A CN 113152797A
- Authority
- CN
- China
- Prior art keywords
- fastener
- photovoltaic
- waterproof
- water guide
- installation system
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0481—Drainage guiding provisions, e.g. deflectors or stimulation by inclined surfaces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/38—Devices for sealing spaces or joints between roof-covering elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention discloses a waterproof photovoltaic roof installation system, which comprises a photovoltaic panel, a water guide support and a plurality of fixing pieces, wherein the water guide support is arranged along a splicing gap of the photovoltaic panel and is used for supporting the photovoltaic panel; the mounting is including being the articulated first fastener and the second fastener that set up of "X" type, and first fastener and second fastener are located and form the clamping position between the homonymy tip of articulated position, on first fastener and the second fastener, be located articulated position department, be provided with the one-way gear of mutually supporting, the mounting is still including passing one-way gear and carrying out the spacing stop bolt of axial to it. The invention has the characteristics of convenient construction, quick installation, good sealing and waterproof performance and the like.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic panels, in particular to a waterproof photovoltaic roof installation system.
Background
At present, under the influence of a large photovoltaic environment, a project of a large photovoltaic power station is rapidly increased in nearly two years, and the current situation that more people and less land exist in China forces a plurality of photovoltaic power stations to be developed to the roof of a large-scale factory building and the like, but the photovoltaic panel is arranged on the roof of the factory building and is different from the photovoltaic panel arranged on the ground.
In the field of industrial BIPV (building integrated photovoltaic) building, photovoltaic panels are generally installed on purlins and beams of a building as a building roof, and have very strict requirements on water resistance as the roof, and the existing photovoltaic panel fixing modes (including supports) cannot meet the requirements.
In the field of BAPV (photovoltaic attached to buildings) in the industry, a photovoltaic panel is installed on the surface of the top of a building, wherein a common roof material is a color steel tile, and as the color steel tile roof has a short service life (the service life of a photovoltaic power generation system is generally more than 20 years, and the service life of the color steel tile is generally 5-10 years), the color steel tile roof needs to be replaced once or even several times in the whole life cycle of the photovoltaic system, the project investment is increased, and the roof replacement of an owner is troubled. In order to solve the problems, the color steel tile positioned below the photovoltaic plate is not corroded by water by improving the waterproof effect of the support of the photovoltaic plate in the industry, so that the service life of the color steel tile is prolonged, and the service life of the color steel tile is matched with the service life of the photovoltaic plate. But current photovoltaic board support can not satisfy this kind of high waterproof requirement, causes various steel tile roofing life short, has increased later stage change and cost of maintenance.
The utility model discloses a BIPV photovoltaic roofing system as in patent specification with publication number CN105239733A, it includes photovoltaic board, main gutter, inferior gutter, purlin, girder steel, node, zinc-plated book piece, main gutter and inferior gutter cross connection, be provided with the photovoltaic board between main gutter and the inferior gutter, the photovoltaic board bottom is provided with the purlin, and the purlin bottom is connected with the girder steel, the girder steel bottom is provided with zinc-plated book piece, be provided with the node on the inferior gutter.
And secondly as in patent specification with publication number CN106522479A, disclose a BIPV waterproof photovoltaic roofing installing the system, including solar energy component and locate the vertical basin on the roofing purlin, solar energy component erects in two adjacent vertical basins top, be equipped with in the vertical basin and catchment the chamber and hold the chamber, hold chamber bottom opening, top closure, vertical basin passes through the connecting piece and connects the roofing purlin, and the intracavity is held in locating to connecting piece partly.
All set up vertical fastening bolt through the centre in the above-mentioned two schemes and fix photovoltaic fastener and lower part support, because atress in the middle of the fastener, arouse both ends photovoltaic stiff end warp deformation easily, ageing influence fastening effect for a long time easily, and waterproof performance greatly reduced.
Disclosure of Invention
The invention aims to provide a waterproof photovoltaic roof installation system which is convenient to construct, quick to install and good in sealing and waterproof performance.
The utility model provides a waterproof photovoltaic roofing installing the system, includes the photovoltaic board and sets up, is used for supporting the water guide support of photovoltaic board along photovoltaic board concatenation gap, its characterized in that: the photovoltaic panel fixing device also comprises a plurality of fixing pieces which are arranged above the water guide bracket at intervals along the splicing gaps and used for fixing the photovoltaic panel on the water guide bracket;
the mounting is including being the articulated first fastener and the second fastener that set up of "X" type, and first fastener and second fastener are located and form the clamping position between the homonymy tip of articulated position, on first fastener and the second fastener, be located articulated position department, be provided with the one-way gear of mutually supporting, the mounting is still including passing one-way gear and carrying out the spacing stop bolt of axial to it.
In this scheme, form two clamping position between first fastener and the second fastener for on two photovoltaic boards of amalgamation are fixed to the water guide support, through the one-way gear block, make the contained angle between first fastener and the second fastener fixed, press from both sides tight position space fixed promptly, spacing bolt axial is spacing locks first fastener and second fastener, prevents the axial dislocation, guarantees to press from both sides tight position space size and does not change.
Preferably, the first fastener and the second fastener are provided with bayonets at the hinged positions for the first fastener and the second fastener to be engaged with, and the one-way gear is arranged in the bayonets.
The first fastener and the second fastener are embedded, so that the end parts of the first fastener and the second fastener, which are positioned on the same side of the hinged position, are arranged oppositely, and the stability of clamping is ensured. Simultaneously, the one-way gear is arranged in the bayonet and is hidden, the one-way gear cannot be seen from the outside in a meshed state, and the influence of the environment on the fixing piece is reduced.
Further preferably, in both the first fastening piece and the second fastening piece, a bolt sleeve shaft which extends into the other and is coaxial with the one-way gear is arranged in the bayonet of one of the first fastening piece and the second fastening piece.
Specifically, be provided with the through-hole on first clamping piece and the second clamping piece, bolt sleeve axle passes the through-hole and as the articulated shaft of first clamping piece and second clamping piece, conveniently rotates suitable contained angle with first clamping piece and second clamping piece, accomplishes the cohesion back, realizes one-way gear's meshing. Meanwhile, the outer side faces of the first clamping piece and the second clamping piece are provided with inner hexagonal counter bores communicated with the through hole, and an inner hexagonal wrench is conveniently adopted to rotate the first clamping piece and the second clamping piece.
Preferably, the water guide bracket comprises support seats oppositely arranged along the splicing gap and a water guide groove arranged between the support seats, and two side walls of the water guide groove are connected to the support seats; the supporting seat top is provided with the supporting part that extends to water guide way one side level, the supporting part sets up in the clamping position that the mounting corresponds with the photovoltaic board at its top.
Preferably, the two side walls of the water chute are connected to the support base through connecting portions parallel to the support portion, a guide groove is formed between the support portion and the connecting portions, and a projection extending downwards and capable of sliding in the guide groove is arranged on the end portion, abutted against the bottom of the support portion, of the fixing member.
Through setting up guide slot and lug, can put into the assigned position with the mounting fast, and can not incline, when improving the installation effectiveness, guarantee sealing performance.
Preferably, a waterproof rubber strip is arranged between the adjacent fixing pieces and at the opening of the guide groove. The waterproof rubber strip prevents water from entering the guide groove and limits the fixing piece.
Preferably, a waterproof rubber mat is arranged at the position where the fixing piece is contacted with the photovoltaic panel.
Preferably, the water guide bracket is of an integrated structure.
The invention has the beneficial effects that:
when the integrated water guide support is installed, the fixing piece can slide along the guide grooves on the two sides of the integrated water guide support to adjust the position, and positioning and construction are facilitated. Meanwhile, the fixing piece is simple in structure, convenient to mount and firm in fixing, a hidden type internal one-way gear structure is adopted, the one-way gear cannot be seen from the outside in a meshed state, and the influence of the environment on the device is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the fixture;
FIG. 3 is a schematic view of a first fastener;
FIG. 4 is a schematic structural view of a first fastener and a stop bolt;
FIG. 5 is a schematic structural view of a second fastener;
FIG. 6 is another angular configuration of the second fastener;
fig. 7 is a structural schematic diagram of a water guide bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a waterproof photovoltaic roof installation system comprises a photovoltaic panel 4 and a water guide support 5 arranged along a splicing gap of the photovoltaic panel 4 and used for supporting the photovoltaic panel 4, wherein the photovoltaic panel 4 is fixed on the water guide support 5 through a plurality of fixing pieces arranged above the water guide support 5 along the splicing gap at intervals. When the purline fixing device is installed, the water guide support 5 is fixed on the purline through bolts.
As shown in fig. 2-6, the fixing member includes a first fastening member 1 and a second fastening member 2 which are hinged in an "X" shape, and the end portions of the first fastening member 1 and the second fastening member 2 extend horizontally outwards to form an abutting portion.
The first fastener 1 and the second fastener 2 are located at hinged positions and are provided with one-way gears 3 which are matched with each other, and the fixing piece further comprises a limiting bolt 6 which penetrates through the one-way gears 3 to limit the fixing piece in the axial direction.
Specifically, bayonets are respectively arranged at the positions, located at the hinged positions, of the first fastening piece 1 and the second fastening piece 2, and the first fastening piece 1 and the second fastening piece 2 are clamped and embedded through the two bayonets; in the embodiment, the thicknesses of the first fastening piece 1 and the second fastening piece 2 are the same, and the sum of the depths of the two bayonets is equal to the thickness of the first fastening piece 1 or the second fastening piece 2; the one-way gears 3 are respectively arranged in the bayonets of the first fastening piece 1 and the second fastening piece 2.
In the embodiment, a bolt sleeve shaft 7 which extends into the second fastening piece 2 and is coaxial with the one-way gear 3 is arranged in the bayonet of the first fastening piece 1; specifically, be provided with the through-hole on first clamping piece 1 and the second clamping piece 2, bolt sleeve axle 7 passes 2 through-holes of second clamping piece, as the articulated shaft of first clamping piece 1 and second clamping piece 2, conveniently rotates suitable contained angle with first clamping piece 1 and second clamping piece 2, accomplishes the cohesion back, realizes the meshing of one-way gear 3. Meanwhile, the outer side faces of the first clamping piece 1 and the second clamping piece 2 are provided with inner hexagonal counter bores communicated with the through hole, and an inner hexagonal wrench is conveniently adopted to rotate the first clamping piece 1 and the second clamping piece 2.
In this embodiment, as shown in fig. 7, the water guide bracket 5 includes support bases 51 oppositely disposed along the splicing gap, and a water guide chute 52 disposed between the support bases 51 and having two side walls connected to the support bases 51; the support base 51 has a support 53 extending horizontally toward the water guide groove 52 at the top.
Specifically, both side walls of the water chute 52 are connected to the support base 51 through connection portions 54 arranged in parallel with the support portion 53, a guide groove 55 is formed between the support portion 53 and the connection portions 54, and a projection 8 extending downward and capable of sliding in the guide groove 55 is provided on an end abutting portion of the first fastening member 1 and the second fastening member 2 located below.
The support 53 is arranged with the photovoltaic panel 4 on top of it in the clamping position corresponding to the fixture. Specifically, after the protrusion 8 on the fixing member slides in along the guide groove 55 of the water guide bracket 5, the end abutting parts of the first fastening member 1 and the second fastening member 2 located below respectively abut against the bottom surfaces of the supporting parts 53 at the tops of the two supporting seats 51, and the end abutting parts of the first fastening member 1 and the second fastening member 2 located above respectively abut against the two spliced photovoltaic panels 4. In this embodiment, the end abutting portions of the first fastening member 1 and the second fastening member 2 located above are provided with waterproof rubber pads 9.
The locking method comprises the following specific steps: let the separation of one-way gear 3 on first fastener 1 and the second fastener 2, rotate first fastener 1 and second fastener 2 respectively through the allen key, compress tightly photovoltaic board 4 on water guide support 5, exert oneself to the inboard, accomplish the cohesion of first fastener 1 and second fastener 2, realize the meshing of two one-way gear 3, reuse stop bolt 6 passes the through-hole on first fastener 1 and the second fastener 2 (also pass bolt sleeve axle 7) and accomplish the axial spacing of one-way gear 3, realize locking.
In this embodiment, be located the guide slot 55 opening part between the adjacent mounting and be provided with waterproof rubber strip, waterproof rubber strip has both avoided water to get into guide slot 55 and has realized the spacing to the mounting again.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a waterproof photovoltaic roofing installing the system, includes the photovoltaic board and sets up, is used for supporting the water guide support of photovoltaic board along photovoltaic board concatenation gap, its characterized in that: the photovoltaic panel fixing device also comprises a plurality of fixing pieces which are arranged above the water guide bracket at intervals along the splicing gaps and used for fixing the photovoltaic panel on the water guide bracket;
the mounting is including being the articulated first fastener and the second fastener that set up of "X" type, and first fastener and second fastener are located and form the clamping position between the homonymy tip of articulated position, on first fastener and the second fastener, be located articulated position department, be provided with the one-way gear of mutually supporting, the mounting is still including passing one-way gear and carrying out the spacing stop bolt of axial to it.
2. The waterproof photovoltaic roofing installation system of claim 1, wherein: the first fastener and the second fastener are provided with bayonets at hinged positions for the first fastener and the second fastener to be embedded, and the one-way gear is arranged in the bayonets.
3. The waterproof photovoltaic roofing installation system of claim 2, wherein: in the first fastener and the second fastener, a bolt sleeve shaft which extends into the other and is coaxial with the one-way gear is arranged in a bayonet of one fastener.
4. The waterproof photovoltaic roofing installation system of claim 1, wherein: the water guide bracket comprises supporting seats which are oppositely arranged along the splicing gap and a water guide groove which is arranged between the supporting seats and is connected with the supporting seats on two side walls; the supporting seat top is provided with the supporting part that extends to water guide way one side level, the supporting part sets up in the clamping position that the mounting corresponds with the photovoltaic board at its top.
5. The waterproof photovoltaic roofing installation system of claim 4, wherein: the both sides wall of guiding gutter is connected on the supporting seat through the connecting portion with supporting part parallel arrangement, forms the guide slot between supporting part and the connecting portion, be provided with downwardly extending, can be in the gliding lug of guide slot on the tip of mounting and supporting part bottom butt.
6. The waterproof photovoltaic roofing installation system of claim 5, wherein: and waterproof rubber strips are arranged between the adjacent fixing pieces and positioned at the opening of the guide groove.
7. The waterproof photovoltaic roofing installation system of claim 1, wherein: and a waterproof rubber pad is arranged at the position where the fixing piece is contacted with the photovoltaic panel.
8. The waterproof photovoltaic roofing installation system of any one of claims 1 to 7, wherein: the water guide support is of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168690.1A CN113152797B (en) | 2021-02-07 | 2021-02-07 | Waterproof photovoltaic roof installation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168690.1A CN113152797B (en) | 2021-02-07 | 2021-02-07 | Waterproof photovoltaic roof installation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113152797A true CN113152797A (en) | 2021-07-23 |
| CN113152797B CN113152797B (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168690.1A Active CN113152797B (en) | 2021-02-07 | 2021-02-07 | Waterproof photovoltaic roof installation system |
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| Country | Link |
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| CN (1) | CN113152797B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457964A (en) * | 2022-02-17 | 2022-05-10 | 江苏新阳光智顶科技有限公司 | Integrated roof photovoltaic system of modularization assembled installation |
| CN114856088A (en) * | 2022-04-28 | 2022-08-05 | 浙江大学建筑设计研究院有限公司 | Flexible connection wind uncovering resistant BIPV system and installation method |
| CN115333442A (en) * | 2022-08-30 | 2022-11-11 | 浙江大学建筑设计研究院有限公司 | Quick detach BIPV system |
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| WO2012022282A2 (en) * | 2010-06-07 | 2012-02-23 | Schletter Gmbh | Edge protection element for arranging frameless pv modules |
| CN105239733A (en) * | 2015-11-04 | 2016-01-13 | 浙江精工能源科技集团有限公司 | BIPV photovoltaic roof system |
| CN105352208A (en) * | 2015-11-24 | 2016-02-24 | 江阴市凯凯光伏支架有限公司 | Solar panel support |
| CN106522479A (en) * | 2016-12-22 | 2017-03-22 | 黄彩云 | BIPV waterproof photovoltaic roof installation system |
| CN111042448A (en) * | 2019-12-24 | 2020-04-21 | 杭州福斯特光伏发电有限公司 | Photovoltaic roofing mounting structure |
-
2021
- 2021-02-07 CN CN202110168690.1A patent/CN113152797B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012022282A2 (en) * | 2010-06-07 | 2012-02-23 | Schletter Gmbh | Edge protection element for arranging frameless pv modules |
| CN105239733A (en) * | 2015-11-04 | 2016-01-13 | 浙江精工能源科技集团有限公司 | BIPV photovoltaic roof system |
| CN105352208A (en) * | 2015-11-24 | 2016-02-24 | 江阴市凯凯光伏支架有限公司 | Solar panel support |
| CN106522479A (en) * | 2016-12-22 | 2017-03-22 | 黄彩云 | BIPV waterproof photovoltaic roof installation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457964A (en) * | 2022-02-17 | 2022-05-10 | 江苏新阳光智顶科技有限公司 | Integrated roof photovoltaic system of modularization assembled installation |
| CN114856088A (en) * | 2022-04-28 | 2022-08-05 | 浙江大学建筑设计研究院有限公司 | Flexible connection wind uncovering resistant BIPV system and installation method |
| CN114856088B (en) * | 2022-04-28 | 2024-06-14 | 浙江大学建筑设计研究院有限公司 | Flexible connection anti-wind-uncovering BIPV system and installation method |
| CN115333442A (en) * | 2022-08-30 | 2022-11-11 | 浙江大学建筑设计研究院有限公司 | Quick detach BIPV system |
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| CN113152797B (en) | 2021-11-30 |
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