CN106059476A - Layout structure of photovoltaic panel with plastic steel profiles - Google Patents

Layout structure of photovoltaic panel with plastic steel profiles Download PDF

Info

Publication number
CN106059476A
CN106059476A CN201610613130.1A CN201610613130A CN106059476A CN 106059476 A CN106059476 A CN 106059476A CN 201610613130 A CN201610613130 A CN 201610613130A CN 106059476 A CN106059476 A CN 106059476A
Authority
CN
China
Prior art keywords
photovoltaic panel
plastic
steel
base plate
section bar
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
Application number
CN201610613130.1A
Other languages
Chinese (zh)
Other versions
CN106059476B (en
Inventor
余金璋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Esso Lun Energy Co Ltd
Original Assignee
Ningbo Esso Lun Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Esso Lun Energy Co Ltd filed Critical Ningbo Esso Lun Energy Co Ltd
Priority to CN201610613130.1A priority Critical patent/CN106059476B/en
Publication of CN106059476A publication Critical patent/CN106059476A/en
Application granted granted Critical
Publication of CN106059476B publication Critical patent/CN106059476B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00Structural details of PV modules other than those related to light conversion
    • H02S30/10Frame structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a layout structure of a photovoltaic panel with plastic steel profiles. The layout structure comprises a photovoltaic panel body (1). The key lies in that the photovoltaic panel body (1) is provided with a plastic steel frame (2) made of plastic steel profiles, plastic steel bars (3) form a stereoscopic support of a three-dimensional structure through connectors, and the stereoscopic support is connected with the photovoltaic panel body (1) provided with the plastic steel frame (2). According to the invention, the plastic steel profiles, the photovoltaic panel and the support structure fully work together, and the unique advantages of the combination are brought into play. Compared with the prior art, the layout structure has very good comprehensive performance, the photovoltaic panel has very high electrical safety, weathering resistance and sealing performance, the overall structure is of high strength, the layout structure is very convenient to install, the overall preparation cost and artificial cost are reduced greatly, and very significant economic benefit is achieved.

Description

A kind of laying structure of the photovoltaic panel having plastic-steel section bar
Technical field:
The present invention relates to the overall structure of a kind of photovoltaic panel, particularly relate to a kind of one utilizing plastic-steel section bar and constituting The overall laying structure of photovoltaic panel
Background technology:
Solar energy is a kind of nexhaustible clean energy resource, obtains widely with photovoltaic panel for photovoltaic conversion structure entering year Application, but the veneer of the preparation of photovoltaic panel self and photovoltaic panel set up or exist on the Reasonable Arrangement of many plates much have to be solved Problem, owing to photovoltaic panel relates to the setting of Circuits System, the setting of earthed system, many plates from as photoelectric conversion device Lay, the sealed insulation of photovoltaic panel self, and the problems referred to above solve in the engineering cost that relates to and install the convenience laid Etc. problems.At present photovoltaic panel is to be formed the frame of photovoltaic panel by aluminium alloy extrusions, its advantage be frame and entirety relatively gently, But shortcoming is to need between aluminum alloy frame and photovoltaic panel to apply fluid sealant, to realize sealing and insulation, simultaneously to aluminum alloy frame There is provision of earthed system, to realize electrical safety, from another viewpoint, owing to the weight of relatively large photovoltaic panel is relatively big, The integrated support structure seeking photovoltaic panel has at a relatively high structural strength and good weathering performance, is difficult to the intensity of aluminium alloy Meet requirement comprehensively.Therefore, requirement and the requirement of photovoltaic panel supporting construction of each side of photovoltaic panel self how are solved, it is achieved The structure of a kind of photovoltaic panel meeting each side requirement is the most significant with the design laying requirement.
Summary of the invention:
The goal of the invention of the present invention is to disclose a kind of both to have met the safety of photovoltaic panel, meet the requirement of supporting construction again And the laying structure of the photovoltaic panel of convenient engineering installation.
The technical solution realizing the present invention is as follows: include photovoltaic panel body, it is important to photovoltaic panel body has plastic-steel The plastic-steel frame of section bar, strip plastic-steel is made up of the dimensional support of three dimensional structure connector, and dimensional support connection has plastic-steel limit The photovoltaic panel body of frame.
Described plastic-steel frame includes the frame main body having cavity, and frame body floor extends base plate, frame main body Side upwardly extends and is bent to form top board again, and forms an indent, and there is the soft protuberance of coextrusion the end of indent.
The cross section of described strip plastic-steel is rectangle, and there is the groove that bottom width opening is narrow on two surface, or three surfaces have There is above-mentioned groove on above-mentioned groove or four surfaces.
Described connector is supporting connecting piece, and it is the lower plate having bending downwards at base plate dual-side, base plate and under Clamping plate have through hole, the bar shaped nut that bolt via through holes adapts with aforementioned grooves shape with section configuration to be connected.
Described connector is a cross-connect, and it is the lower plate having bending downwards base plate two relative edge, the end of at The opposite side relative edge of plate has the train wheel bridge being folded upward at, base plate and upper lower plate all to have through hole, bolt via through holes and section shape The bar shaped nut that shape adapts with aforementioned grooves shape is connected.
Described connector is a kind of holding attachment, and it is the lower plate having bending downwards base plate two relative edge, The another side of base plate has top upwards to have the grip block of a turn of bilge, base plate and lower plate to have through hole, bolt via through holes and section The bar shaped nut that shape adapts with aforementioned grooves shape is connected.
There is a turn of bilge on the top of described train wheel bridge.
The section configuration of described groove is boss-shaped or dovetail shaped.
The lower surface of described turn of bilge has at least one apiculus, preferably two apiculus.
The present invention is while taking into full account the supporting construction of photovoltaic panel, for the characteristic of existing photovoltaic panel self The some defects reflected with prior art, the operational characteristic in conjunction with plastic-steel section bar designs join organic with aforesaid supporting construction The structure of the plastic-steel closed, makes plastic-steel section bar fully coordinate with photovoltaic panel and supporting construction, has given play to the unique advantage after combination, relatively Prior art there is extraordinary combination property, make photovoltaic panel have extraordinary electrical safety, weather resisteant, sealing, whole The intensity of body structure is good and installs extremely convenient, significantly reduces preparation cost and the cost of labor of entirety, has highly significant Economic benefit.
Accompanying drawing illustrates:
Fig. 1 is the overall structure schematic diagram of one embodiment of the invention.
Fig. 2 is the sectional perspective structural representation of the supporting construction of the present invention.
Fig. 3 is the sectional perspective structural representation of another embodiment of the supporting construction of the present invention.
Fig. 4 is the section structure schematic diagram of the plastic-steel frame of photovoltaic panel of the present invention.
Fig. 5 is the stereochemical structure signal of the state of installing and using (after removing plastic-steel support section bar) of the connector of the present invention Figure.
Fig. 6 is the structural representation of a kind of embodiment of the plastic-steel support section bar of the present invention.
Fig. 7 is the structural representation of a kind of connector of the present invention.
Fig. 8 is the structural representation of the alternative attachment of the present invention.
Detailed description of the invention:
It is shown in detail in the detailed description of the invention of the present invention in conjunction with Figure of description, it should be noted that being embodied as of the present invention The description of mode is for ease of the understanding to the technology of the present invention with structure, and is not construed as the claim to the present invention and protects Protect the restriction of scope.
Referring to Fig. 1~Fig. 8, the specific embodiment of the present invention is as follows: including photovoltaic panel body 1, it includes Circuits System And photoelectric conversion device, can be considered that prior art, photovoltaic panel body 1 have the plastic-steel frame 2 of plastic-steel section bar, strip plastic-steel 3 by Connector constitutes the dimensional support of three dimensional structure, and dimensional support connects the photovoltaic panel body 1 with plastic-steel frame 2;Owing to connecting The unique design of part makes the dimensional support being made up of strip plastic-steel 3 have very abundant change structure, makes photovoltaic panel solid prop up Present multiple state in support, as photovoltaic panel can be horizontally disposed with, can arbitrarily angled setting to adapt to the sun in the place of different latitude The angle of incidence of light, and the dimensional support that plastic-steel is made has fabulous weather resisteant and structural strength, can bear large-area light Volt plate or photovoltaic panel array.
Above-mentioned plastic-steel frame 2 includes the frame main body 4 having cavity, and base plate 5 is extended, with support in frame main body 4 bottom surface Photovoltaic panel body 1 and accordingly electrical equipment and circuit part, the side of frame main body 4 upwardly extends and is bent to form a top board 6 again, And forming an indent 7, there is the soft protuberance 8 (shown in Fig. 4) of coextrusion the end of indent 7;Time actually used, photovoltaic panel body 1 Embed in indent 7, it is achieved photovoltaic panel body 1 compresses location, and the soft protuberance 8 of the end of indent 7 is to photovoltaic panel originally simultaneously While body 1 seals, the flexible protective effect in edge to photovoltaic panel body 1;Above-mentioned soft protuberance 8 is by plastic material or rubber Prepared by plastic material, the coextrusion process being prepared by prior art at plastic-steel frame 2 realizes once preparing, and soft protuberance 8 is actual It is to be two symmetrical strips in the end of indent 7, for improving sealing effectiveness further, can be at the inside of indent 7 or the end of indent 7 Portion sets the soft protuberance (not shown) of two strips of a symmetry again, above-mentioned plastic material or rubber plastic material should select with The material or material modified that the plastic coating material compatibility of plastic-steel frame 2 is good or close is particularly optional modified soft Matter pvc material, its suppleness is splendid, and black brittleness and high temperature deformation little (-50 DEG C~50 DEG C), sky marquis's aging period is 30 About Nian, the prior art that the plastic-steel frame 2 of above-mentioned preparation combines fluid sealant composition than aluminium alloy extrusions has great performance Improve.
The cross section of aforesaid strip plastic-steel 3 is rectangle, not limits the size of length and width, cross section be square also can, its There is a groove 9 (shown in Fig. 6) that bottom width opening is narrow on two surfaces, or three surfaces have on above-mentioned groove 9 or four surfaces all have Many strip plastic-steels 3 can be consisted of the dimensional support of a three dimensional structure, and this dimensional support by the groove 9 stated connector Composition very convenient, at the several groove of surface configuration 9 of above-mentioned strip plastic-steel 3, this visual strip plastic-steel 3 is at dimensional support In position with effect depending on.
Aforesaid dimensional support is to utilize connector to be formed by connecting by many strip plastic-steels 3, and aforesaid connector is supporting Connector 10 (shown in Fig. 8), it is the lower plate 12 having bending downwards at base plate 11 dual-side, and base plate 11 and lower plate 12 have logical Hole, the bar shaped nut 13 that bolt via through holes adapts with aforementioned grooves 9 shape with section configuration is connected;When installing and using, by bar Shape nut 13 moves to appropriate location along the groove 9 of strip plastic-steel 3, and supporting connecting piece 10 is snapped fit onto above-mentioned appropriate location, spiral shell Female being connected with bar shaped nut 13 by lower plate 12, be then connected with a strip plastic-steel 3 by supporting connecting piece 10, in like manner bolt can be by Another root strip plastic-steel 3 is connected with base plate 11, it is achieved the connection (shown in Fig. 2, Fig. 3) of two strip plastic-steels 3.
Aforesaid connector is a kind of cross-connect 14 (shown in Fig. 7), and it is to have the most curved 11 liang of relative edges of base plate The lower plate 12 of folding, another relative edge at base plate 11 has the train wheel bridge 15 being folded upward at, base plate 11, train wheel bridge 15 and lower plate 12 all have through hole, the bar shaped nut 13 that bolt via through holes adapts with aforementioned grooves 9 shape with section configuration to be connected, upper and lower folder Plate (15,12) then can be connected with a strip plastic-steel 3, and two strip plastic-steels 3 are in 90 degree of angles, to constitute dimensional support A part (shown in Fig. 2, Fig. 3).
Aforesaid connector is a kind of holding attachment 16 (shown in Fig. 2), and it is to have the most curved 11 liang of relative edges of base plate The lower plate 12 of folding, the another side at base plate 11 has top upwards to have the grip block 18 of a turn of bilge 17, base plate 11 and lower plate 12 have through hole, the bar shaped nut 13 that bolt via through holes adapts with aforementioned grooves 9 shape with section configuration to be connected, and this is clamped and connected Part 16 is generally located on the end of strip plastic-steel 3, also can be located at any part of strip plastic-steel 3, when photovoltaic panel is placed in three-dimensional Time in support, the turn of bilge 17 of grip block 18 withholds the surface of the plastic-steel frame 2 in photovoltaic panel, and multiple grip blocks 18 can effectively be fixed Photovoltaic panel (shown in Fig. 1, Fig. 2, Fig. 3).Turn of bilge 17 is had, the most at this moment in the upper end of the train wheel bridge 15 of aforesaid cross-connect 14 Cross-connect 14 can act also as holding attachment 16 and use, as longer in the strip plastic-steel 3 when dimensional support, can be also on it When row arrange polylith photovoltaic panel, cross-connect 14 may be disposed at the middle appropriate location of strip plastic-steel 3, thereon with turn of bilge The train wheel bridge 15 of 17 can clamp two pieces of photovoltaic panel at two ends, and this is very convenient to arranging of the array of photovoltaic panel.
The present invention is on the basis of being specifically designed of above-mentioned strip plastic-steel 3, and the multiple design of the connector of respective design can While making to be dimensional support by strip plastic-steel 3 extremely convenient ground framework, photovoltaic panel effectively can be clamped on dimensional support, In the structure of above-mentioned strip plastic-steel 3 and connector, the section configuration of the groove 9 of strip plastic-steel 3 is boss shape or dovetail shaped, The section configuration of bar shaped nut 13 is also boss shape or dovetail shaped, so that bar shaped nut 13 can slip position in groove 9 easily Moving and be prone to location, both cooperating of shape can increase stability simultaneously.
Have at least at the lower surface of the turn of bilge 17 on above-mentioned grip block 18 top, the i.e. contact surface with plastic-steel frame 2 surface One apiculus, preferably two apiculus (not shown)s, on the one hand this apiculus increases photovoltaic panel plastic-steel frame 2 Clamping degree, on the other hand electrical safety or arranging of ground connection to photovoltaic panel provide the convenience in future.
Summarize it, the present invention solves that the defect that prior art exists provides a comprehensive Design side the most valuable Case, owing to plastic-steel frame 2, the strip plastic-steel 3 of particular design combine with the organic of connector, the present invention is not required to arrange photovoltaic panel Earthed system while, overcome the number of drawbacks of prior art, be that a kind of very environmental protection and safety, stability are splendid Regeneration product designs.

Claims (9)

1. has a laying structure for the photovoltaic panel of plastic-steel section bar, including photovoltaic panel body (1), it is characterised in that photovoltaic panel body (1) having the plastic-steel frame (2) of plastic-steel section bar, strip plastic-steel (3) is made up of the dimensional support of three dimensional structure, solid connector Support connection has the photovoltaic panel body (1) of plastic-steel frame (2).
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 1, it is characterised in that described plastic-steel limit Frame (2) includes the frame main body (4) having cavity, and frame main body (4) bottom surface extends base plate (5), the side of frame main body (4) to Upper extension is bent to form top board (6) again, and forms an indent (7), and there is the soft protuberance (8) of coextrusion the end of indent (7).
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 1 and 2, it is characterised in that described strip The cross section of plastic-steel (3) is rectangle, and there is the groove (9) that bottom width opening is narrow on two surface, or there is above-mentioned groove (9) on three surfaces Or there is above-mentioned groove (9) on four surfaces.
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 3, it is characterised in that described connector For supporting connecting piece (10), it is the lower plate (12) having bending downwards at base plate (11) dual-side, base plate (11) and lower plate (12) having through hole, the bar shaped nut (13) that bolt via through holes adapts with aforementioned grooves (9) shape with section configuration is connected.
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 3, it is characterised in that described connector Being a cross-connect (14), it is the lower plate (12) having bending downwards base plate (11) two relative edge, at base plate (11) Opposite side relative edge has the train wheel bridge (15) being folded upward at, base plate (11) and upper lower plate (15,12) all to have through hole, and bolt is through logical The bar shaped nut (13) that hole adapts with aforementioned grooves (9) shape with section configuration is connected.
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 3, it is characterised in that described connector For a kind of holding attachment (16), it is the lower plate (12) having bending downwards base plate (11) two relative edge, in base plate (11) Another side have top upwards to have the grip block (18) of a turn of bilge (17), base plate (11) and lower plate (12) to have through hole, bolt The bar shaped nut (13) that via through holes adapts with aforementioned grooves (9) shape with section configuration is connected.
The laying structure of the photovoltaic panel of tool plastic-steel section bar the most according to claim 5, it is characterised in that described train wheel bridge (15) there is a turn of bilge (17) on top.
8. according to the laying structure of the photovoltaic panel having plastic-steel section bar described in claim 4~7, it is characterised in that described groove (9) section configuration is boss-shaped or dovetail shaped.
9. according to the laying structure of the photovoltaic panel having plastic-steel section bar described in claim 6 or 7, it is characterised in that described turn of bilge (17) lower surface has at least one apiculus, preferably two apiculus.
CN201610613130.1A 2016-07-29 2016-07-29 A kind of laying structure for the photovoltaic panel for having plastic-steel section bar Active CN106059476B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610613130.1A CN106059476B (en) 2016-07-29 2016-07-29 A kind of laying structure for the photovoltaic panel for having plastic-steel section bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610613130.1A CN106059476B (en) 2016-07-29 2016-07-29 A kind of laying structure for the photovoltaic panel for having plastic-steel section bar

Publications (2)

Publication Number Publication Date
CN106059476A true CN106059476A (en) 2016-10-26
CN106059476B CN106059476B (en) 2018-04-20

Family

ID=57196749

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610613130.1A Active CN106059476B (en) 2016-07-29 2016-07-29 A kind of laying structure for the photovoltaic panel for having plastic-steel section bar

Country Status (1)

Country Link
CN (1) CN106059476B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901842A (en) * 2009-05-27 2010-12-01 浙江公元太阳能科技有限公司 Photovoltaic power generation solar cell subassembly section bar frame
FR2975475A1 (en) * 2011-05-18 2012-11-23 Oseris Ouest Solaire En Renouvelable PHOTOVOLTAIC PANEL SUPPORT ASSEMBLY COMPRISING A SEALED FRAME WITH PROFILED SIDES, AND CORRESPONDING POWER PLANT.
CN202706299U (en) * 2012-08-09 2013-01-30 上海汇阳新能源科技有限公司 Double-slope type photovoltaic canopy for gas station
CN203118972U (en) * 2013-03-05 2013-08-07 天津英利新能源有限公司 Solar photovoltaic assembly
CN104953935A (en) * 2015-07-08 2015-09-30 昆明日灿光伏发电有限公司 Combined solar photovoltaic support device for farmland and wasteland
CN206077291U (en) * 2016-07-29 2017-04-05 宁波埃索伦能源有限公司 A kind of overall structure of the photovoltaic panel of tool plastic-steel section bar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901842A (en) * 2009-05-27 2010-12-01 浙江公元太阳能科技有限公司 Photovoltaic power generation solar cell subassembly section bar frame
FR2975475A1 (en) * 2011-05-18 2012-11-23 Oseris Ouest Solaire En Renouvelable PHOTOVOLTAIC PANEL SUPPORT ASSEMBLY COMPRISING A SEALED FRAME WITH PROFILED SIDES, AND CORRESPONDING POWER PLANT.
CN202706299U (en) * 2012-08-09 2013-01-30 上海汇阳新能源科技有限公司 Double-slope type photovoltaic canopy for gas station
CN203118972U (en) * 2013-03-05 2013-08-07 天津英利新能源有限公司 Solar photovoltaic assembly
CN104953935A (en) * 2015-07-08 2015-09-30 昆明日灿光伏发电有限公司 Combined solar photovoltaic support device for farmland and wasteland
CN206077291U (en) * 2016-07-29 2017-04-05 宁波埃索伦能源有限公司 A kind of overall structure of the photovoltaic panel of tool plastic-steel section bar

Also Published As

Publication number Publication date
CN106059476B (en) 2018-04-20

Similar Documents

Publication Publication Date Title
TWM506859U (en) Waterproof roof assembly structure having integrated solar panel
CN103510679A (en) Architectural ceramic sheet aluminum honeycomb composite hanging system and construction method thereof
CN206294126U (en) A kind of solar double-glass assemblies and it is vertical, be transversely mounted solar double-glass assemblies assembly
CN203256702U (en) Flood-preventing water stop board
CN202816986U (en) Solar module
CN206077291U (en) A kind of overall structure of the photovoltaic panel of tool plastic-steel section bar
CN106059476A (en) Layout structure of photovoltaic panel with plastic steel profiles
DE202008004055U1 (en) Roof module for solar applications
CN210067162U (en) Waterproof stone curtain wall
CN205178952U (en) A anchor clamps for installing solar cell panel
CN105356835B (en) Solar photovoltaic assembly breach filler formula adhering and sealing structure
CN204826360U (en) Ridge connection structure of quick detach activity board house
CN201839228U (en) Multipurpose medium press block for installing solar energy panel
CN207419869U (en) Double 360 ° of undercuts connect metal pressing plate Roof system
CN209429343U (en) A kind of plate-jointing structure of concealed frame glass curtain wall
CN207296203U (en) A kind of front bezel of solar tile
CN213390989U (en) Solid wood floor structure
CN204967710U (en) A waterproof construction about solar panel for villa roof
CN108019062A (en) A kind of antiseep exempts from gluing sunlight shed
CN208473135U (en) The vertical supporting beam of roof integral photovoltaic plate
CN204531261U (en) A kind of color steel buckle
TWM492933U (en) Waterproof roof assembly structure having integrated solar panel
CN207419888U (en) A kind of glass awning at block entrance
CN203795616U (en) Expansion joint rainproof device for buildings
CN217925197U (en) Large-scale book outdoor tent of camping

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant