CN110821059A - Energy-saving ventilating roof structure and construction method thereof - Google Patents

Energy-saving ventilating roof structure and construction method thereof Download PDF

Info

Publication number
CN110821059A
CN110821059A CN201810928186.5A CN201810928186A CN110821059A CN 110821059 A CN110821059 A CN 110821059A CN 201810928186 A CN201810928186 A CN 201810928186A CN 110821059 A CN110821059 A CN 110821059A
Authority
CN
China
Prior art keywords
roof
wood
cable guide
shaped
plate
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.)
Pending
Application number
CN201810928186.5A
Other languages
Chinese (zh)
Inventor
胡军民
邵美丽
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.)
Shanghai Kaizhu Building Materials Co Ltd
Original Assignee
Shanghai Kaizhu Building Materials 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 Shanghai Kaizhu Building Materials Co Ltd filed Critical Shanghai Kaizhu Building Materials Co Ltd
Priority to CN201810928186.5A priority Critical patent/CN110821059A/en
Publication of CN110821059A publication Critical patent/CN110821059A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/17Ventilation of roof coverings not otherwise provided for
    • E04D13/172Roof insulating material with provisions for or being arranged for permitting ventilation of the roof covering
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1681Insulating of pre-existing roofs with or without ventilating arrangements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/17Ventilation of roof coverings not otherwise provided for
    • E04D13/174Ventilation of roof coverings not otherwise provided for on the ridge of the roof

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

An energy-saving ventilating roof structure comprises a man-shaped roof, wherein a rectangular concrete body is longitudinally arranged in the middle of the man-shaped roof, a plurality of cable guide pipes which are equidistantly and transversely arranged are longitudinally arranged on the rectangular concrete body, the cable guide pipes are of an inverted V-shaped structure, and an arc transition section is arranged in the middle of the inverted V-shaped structure; the two ends of the man-shaped roof are provided with the eave boards, and the eave boards are provided with inclined holes which are arranged corresponding to the cable guide pipes; the cornice blocking grate is arranged on the cornice plate section positioned between the cable guide pipes, and a ventilation structure is arranged in the rectangular concrete body; the cable guide pipe is internally provided with a cable hanging device which comprises a steel strand, two ends of the steel strand are anchored on the anchoring plates outside the eave sealing plates on two sides, and the anchoring plates outside the cable hanging device are provided with flashing plates. The invention saves cost by optimizing the roof structure, can save energy and ventilate while ensuring the waterproof function, improves the performance of the roof system and prolongs the service life of the roof system.

Description

Energy-saving ventilating roof structure and construction method thereof
Technical Field
The invention belongs to the technical field of house buildings, and particularly relates to an energy-saving ventilating roof structure and a construction method thereof.
Background
At present, people pay attention to the heat preservation and heat insulation problem of the roof surface of a building, particularly residents living on the top layer can be troubled by heat in summer, slope heat preservation and water prevention existing on the market are more in original construction modes, waterproof coiled materials are paved on slope concrete after water and sand are leveled, a fine stone concrete protective layer of 40mm is paved on the slope concrete after a polyphenyl heat preservation plate is added, and then tile paving construction is carried out on wood water-guiding strips and wood tile hanging strips. Especially pour the screed-coat on concrete roofing structure, need pass through 2m guiding rule and clearance gauge clearance inspection screed-coat's roughness, require the error to be less than 5mm, carry out the straightness accuracy inspection in the same direction as straight line through 2m support line to ridge and gutter department, the deviation is no longer than 4mm, including locating in advance the installation of roofing accessory and built-in fitting when the screed-coat is pour, then with the debris clean up on the screed-coat, there is the construction trouble, and construction period is longer, has increased time limit cost and cost of labor.
How to save the cost through roofing structural optimization, how to can energy-conserving ventilation when guaranteeing waterproof function, how to improve roofing structural performance, how to improve roofing structural assembly nature, how to prolong roofing structural life-span, become the problem that needs to solve urgently.
Disclosure of Invention
The object of the present invention is to solve the above technical problems.
The utility model provides an energy-conserving ventilation roofing structure, includes humanoid roofing, its characterized in that: the middle of the man-shaped roof is provided with a longitudinally arranged rectangular concrete body, the longitudinal direction of the rectangular concrete body is provided with a plurality of cable guide pipes which are arranged at equal intervals and transversely, the cable guide pipes are all of an inverted V-shaped structure, and the middle part of the inverted V-shaped structure is provided with an arc transition section; two ends of the man-shaped roof are provided with eave boards, and the eave boards are provided with inclined holes which are arranged corresponding to the cable guide pipes; the cornice blocking grate is arranged on the cornice plate section positioned between the cable guide pipes, and a ventilation structure is arranged in the rectangular concrete body; a rope hanging device is arranged in the rope guide pipe and comprises a steel strand, two ends of the steel strand are anchored on the anchoring plates outside the eave sealing plates on two sides, and a flashing plate is arranged outside the anchoring plates of the rope hanging device;
the two inclined planes of the humanoid roof are upwards sequentially provided with a waterproof layer, a heat-insulating layer and a blocking layer; the top surfaces of the cable guide pipes on the two inclined surfaces of the man-shaped roof are respectively provided with a plurality of L-shaped baffles which are arranged at equal intervals, the corners of the L-shaped baffles face upwards, wood battens are arranged in the corners of the L-shaped baffles, and the tops of the wood battens are provided with color tiles;
the top of the rectangular concrete body is provided with a wood supporting bracket, the wood supporting bracket is internally provided with a ridge supporting wood which is longitudinally arranged, the top of the ridge supporting wood is upwards provided with a ventilation coiled material and ridge tiles in sequence, the ridge tiles are respectively in compression joint with the color tiles on the first layer of the upper part of the humanoid roof at both sides, and the color tiles on the first layer of the lower part of the humanoid roof are positioned above the flashing plate.
The ventilation structure include two longitudinal arrangement's trunk line, the below of trunk line all is provided with the branch pipeline that the several arranged along the trunk line equidistance, divides the pipeline to be L type structure, the corner of L type structure is for spending the elbow, the bottom export of branch pipeline is located the top of barrier layer.
The waterproof layer, the heat preservation layer and the blocking layer are all located below the cable guide pipe, the top of the blocking layer and the space at the bottom of the encaustic tile are ventilating spaces, and the ventilating spaces are communicated with the outside through a ventilating structure.
The heat preservation adopt extrusion molding heated board.
A construction method of an energy-saving ventilating roof structure is characterized in that: the method comprises the following operation steps:
A) and prefabricating:
when a roof is poured, pre-burying a cable guide pipe, a ventilation structure and a pre-buried bottom plate of a wood support bracket respectively;
B) and manufacturing accessories:
① making an eave board with an inclined hole corresponding to the cable guide pipe;
② making anchoring system accessories, respectively processing anchoring plates, cutting steel strands to appropriate lengths, and making and installing anchoring plate supports;
③ making L-shaped baffle;
C) the hanging cable is installed, and after the steel strand of the hanging cable device penetrates through the cable guide pipe, the steel strand is tensioned and fixed in the anchoring plate through the anchoring clamping piece;
D) paving a waterproof layer on the top surface of the man-shaped roof;
E) assembling a heat-insulating layer on the top surface of the waterproof layer;
F) installing a blocking layer on the top surface of the heat preservation layer;
G) the L-shaped baffle is welded with the cable guide pipe;
H) mounting wood battens on the L-shaped baffle;
I) welding the wood supporting bracket on the embedded bottom plate;
J) mounting a ridge support wood on the support wood bracket;
K) mounting flashing plates on the outer sides of the eave sealing plate and the anchoring plate;
l) paving color tiles on the tops of the wood battens, wherein the color tiles are paved according to the principle of from right to left and from bottom to top;
m) sequentially mounting a ventilation coiled material and a ridge tile on the ridge-righting support wood;
n), and finishing.
In the step B), the anchoring plate support adopts any one of a welding mode with the anchoring plate or a welding mode with the eave sealing plate.
In the step C), the tension steel strand adopts any one of a mode of fixing one end and tensioning the other end or a mode of synchronously tensioning two ends.
The roof structure is optimized to save cost, can save energy and ventilate while ensuring the waterproof function, improves the performance of the roof structure, has good assembly performance, prolongs the service life of the roof structure, and has good economic and social benefits when being popularized and applied.
Drawings
Fig. 1 is a schematic view of a preset cable guide pipe and a ventilation structure of the man-shaped roof.
Fig. 2 is a schematic view of the mounting structure of the present invention.
Fig. 3 is a schematic view of the ventilation structure of the present invention.
In the figure: 1. a man-shaped roof; 2. a cable guide tube; 3. a capping plate; 4. a ventilation structure; 5. a cable hanging device; 6. a waterproof layer; 7. a heat-insulating layer; 8. a barrier layer; an L-shaped baffle plate; 10. wood hanging battens; 11. encaustic tile; 12. ridge tiles; 13. a ventilated web; 14. correcting ridge and supporting wood; 15. a wood supporting bracket; 16. a flashing plate; 301. the cornice blocks the grate; 401. a main pipeline; 402. and (5) dividing pipelines.
Detailed Description
The invention is further described with reference to the accompanying drawings, but is not to be construed as being limited thereto.
An energy-saving ventilating roof structure comprises a man-shaped roof 1, wherein a rectangular concrete body which is longitudinally arranged is arranged in the middle of the man-shaped roof 1, a plurality of cable guide pipes 2 which are equidistantly and transversely arranged are longitudinally arranged on the rectangular concrete body, the cable guide pipes 2 are all of an inverted V-shaped structure, and an arc transition section is arranged in the middle of the inverted V-shaped structure; both ends of the man-shaped roof 1 are provided with an eaves board 3, and the eaves board 3 is provided with an inclined hole which is arranged corresponding to the cable guide pipe 2; a cornice grate 301 is arranged on the section of the cornice plate 3 positioned between the cable guide pipes 2, and a ventilation structure 4 is arranged in the rectangular concrete body; a rope hanging device 5 is arranged in the rope guide pipe 2, the rope hanging device 5 comprises a steel strand, two ends of the steel strand are anchored on the anchoring plates on the outer sides of the eave sealing plates 3 on the two sides, and a flashing plate 16 is arranged on the outer sides of the anchoring plates of the rope hanging device 5;
the two inclined planes of the humanoid roof 1 are upwards sequentially provided with a waterproof layer 6, a heat-insulating layer 7 and a blocking layer 8; the top surfaces of the cable guide pipes 2 on two inclined surfaces of the man-shaped roof 1 are provided with a plurality of L-shaped baffles 9 which are arranged at equal intervals, corners of the L-shaped baffles 9 face upwards, wood battens 10 are arranged in the corners of the L-shaped baffles 9, and the tops of the wood battens 10 are provided with color tiles 11;
the top of the rectangular concrete body is provided with a wood supporting bracket 15, the wood supporting bracket 15 is internally provided with a ridge supporting wood 14 which is longitudinally arranged, the top of the ridge supporting wood 14 is upwards sequentially provided with a ventilation coiled material 13 and ridge tiles 12, the ridge tiles 12 are respectively in pressure joint with the first layer of encaustic tiles 11 on the upper part of the humanoid roof 1 at two sides, and the first layer of encaustic tiles 11 on the lower part of the humanoid roof 1 are positioned above a flashing plate 16;
the ventilation structure 4 comprises two main pipes 401 which are longitudinally arranged, a plurality of branch pipes 402 which are equidistantly arranged along the main pipes 401 are arranged below the main pipes 401, each branch pipe 402 is of an L-shaped structure, a 90-degree elbow is arranged at a corner of the L-shaped structure, and an outlet at the bottom of each branch pipe 402 is positioned above the barrier layer 8;
the waterproof layer 6, the insulating layer 7 and the barrier layer 8 are all positioned below the cable guide pipe 2, the space between the top of the barrier layer 8 and the bottom of the encaustic tile 11 is a ventilation space, and the ventilation space is communicated with the outside through the ventilation structure 4;
the heat-insulating layer 7 is made of an extruded heat-insulating plate; the cornice plate 3 and the cornice grate 301 can adopt a split structure; the barrier layer 8 is made of a covering coil.
A construction method of an energy-saving ventilating roof structure is characterized in that: the method comprises the following operation steps:
A) and prefabricating:
when the roof is poured, pre-buried bottom plates of the cable guide pipe 2, the ventilation structure 4 and the wood supporting bracket 15 are pre-buried respectively;
B) and manufacturing accessories:
① manufacturing a capping plate 3, and making the capping plate 3 have an inclined hole corresponding to the cable guide tube 2;
② making anchoring system accessories, respectively processing anchoring plates, cutting steel strands to appropriate lengths, and making and installing anchoring plate supports;
③ manufacturing an L-shaped baffle 9;
C) the hanging cable is installed, after the steel strand of the hanging cable device 5 passes through the cable guide pipe 2, the steel strand is tensioned and fixed in the anchoring plate through the anchoring clamping piece;
D) paving a waterproof layer 6 on the top surface of the man-shaped roof 1;
E) the top surface of the waterproof layer 6 is assembled with an insulating layer 7;
F) a barrier layer 8 is arranged on the top surface of the heat preservation layer 7;
G) the L-shaped baffle 9 is welded with the cable guide pipe 2;
H) the L-shaped baffle 9 is provided with a wood battens 10;
I) welding the wood supporting bracket 15 on the embedded bottom plate;
J) the main support bracket 15 is provided with a ridge support wood 14;
K) mounting a flashing plate 16 on the outer sides of the eave sealing plate 3 and the anchoring plate;
l), paving the encaustic tiles 11 on the tops of the wood hanging battens 10, wherein the encaustic tiles 11 are paved according to the principle of from right to left and from bottom to top;
m) sequentially mounting a ventilation coiled material 13 and a ridge tile 12 on the ridge-righting support wood 14;
n), finishing;
in the step B), the anchoring plate support adopts any one of a welding mode with the anchoring plate or a welding mode with the eave sealing plate 3;
in the step C), the tension steel strand adopts any one of a mode of fixing one end and tensioning the other end or a mode of synchronously tensioning two ends.
In specific implementation, the steel strand anchoring technology is adopted, a leveling layer does not need to be poured on the concrete roof structure, the flatness of the leveling layer does not need to be checked, the construction period is shortened, and the construction period cost and the labor cost are reduced.
The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing disclosure without departing from the spirit or essential characteristics of all embodiments, and that all changes and modifications apparent from the above teachings are within the scope of the invention.

Claims (7)

1. The utility model provides an energy-conserving ventilation roofing structure, includes humanoid roofing (1), its characterized in that: a rectangular concrete body which is longitudinally arranged is arranged in the middle of the man-shaped roof (1), a plurality of cable guide pipes (2) which are equidistantly and transversely arranged are longitudinally arranged on the rectangular concrete body, the cable guide pipes (2) are all of an inverted V-shaped structure, and an arc transition section is arranged in the middle of the inverted V-shaped structure; both ends of the man-shaped roof (1) are provided with an eaves board (3), and the eaves board (3) is provided with an inclined hole which is arranged corresponding to the cable guide pipe (2); a cornice grate (301) is arranged on the section of the cornice plate (3) positioned between the cable guide pipes (2), and a ventilation structure (4) is arranged in the rectangular concrete body; a cable hanging device (5) is arranged in the cable guide pipe (2), the cable hanging device (5) comprises a steel strand, two ends of the steel strand are anchored on the anchoring plates on the outer sides of the eave sealing plates (3) on two sides, and a flashing plate (16) is arranged on the outer side of the anchoring plate of the cable hanging device (5);
the two inclined surfaces of the man-shaped roof (1) are upwards sequentially provided with a waterproof layer (6), a heat-insulating layer (7) and a blocking layer (8); the top surfaces of the cable guide pipes (2) on two inclined surfaces of the man-shaped roof (1) are respectively provided with a plurality of L-shaped baffles (9) which are arranged at equal intervals, corners of the L-shaped baffles (9) face upwards, wood battens (10) are arranged in the corners of the L-shaped baffles (9), and the tops of the wood battens (10) are provided with color tiles (11);
the top of the rectangular concrete body is provided with a wood supporting bracket (15), a ridge supporting wood (14) which is longitudinally arranged is arranged in the wood supporting bracket (15), the top of the ridge supporting wood (14) is upwards provided with a ventilation coiled material (13) and ridge tiles (12) in sequence, the ridge tiles (12) are respectively in compression joint with the color tiles (11) on the first layer of the upper part of the humanoid roof (1) at two sides, and the color tiles (11) on the first layer of the lower part of the humanoid roof (1) are positioned above the flashing plate (16).
2. An energy saving ventilated roofing structure according to claim 1 wherein: ventilation structure (4) include two longitudinal arrangement's trunk line (401), the below of trunk line (401) all is provided with branch pipeline (402) that the several arranged along trunk line (401) equidistance, divides pipeline (402) to be L type structure, the corner of L type structure is 90 degrees elbows, the bottom export of dividing pipeline (402) is located the top of barrier layer (8).
3. An energy saving ventilated roofing structure according to claim 1 wherein: waterproof layer (6), heat preservation (7), barrier layer (8) all be located the below of cable pipe (2), the space of the top of barrier layer (8) and encaustic tile (11) bottom is the ventilation space, the ventilation space communicates with each other with the outside through ventilation structure (4).
4. An energy saving ventilated roofing structure according to claim 1 wherein: the heat-insulating layer (7) is made of an extrusion molding heat-insulating plate.
5. A construction method of an energy-saving ventilating roof structure is characterized in that: the method comprises the following operation steps:
A) and prefabricating:
when the roof is poured, pre-buried bottom plates of the cable guide pipe (2), the ventilation structure (4) and the wood supporting bracket (15) are pre-buried respectively;
B) and manufacturing accessories:
① manufacturing a eave board (3), and making the eave board (3) have an inclined hole corresponding to the cable guide pipe (2);
② making anchoring system accessories, respectively processing anchoring plates, cutting steel strands to appropriate lengths, and making and installing anchoring plate supports;
③ manufacturing an L-shaped baffle (9);
C) the hanging cable is installed, and after the steel strand of the hanging cable device (5) passes through the cable guide pipe (2), the steel strand is tensioned and fixed in the anchoring plate through the anchoring clamping piece;
D) a waterproof layer (6) is laid on the top surface of the man-shaped roof (1);
E) assembling an insulating layer (7) on the top surface of the waterproof layer (6);
F) a barrier layer (8) is arranged on the top surface of the heat preservation layer (7);
G) the L-shaped baffle (9) is welded with the cable guide pipe (2);
H) the L-shaped baffle (9) is provided with a wood batten (10);
I) welding the wood supporting bracket (15) on the embedded bottom plate;
J) a ridge-correcting support wood (14) is arranged on the support wood bracket (15);
K) mounting a flashing plate (16) at the outer sides of the eave sealing plate (3) and the anchoring plate;
l), paving the encaustic tiles (11) on the tops of the wood hanging battens (10), wherein the encaustic tiles (11) are paved according to the principle of from right to left and from bottom to top;
m), sequentially mounting a ventilation coiled material (13) and a ridge tile (12) on the ridge-righting support wood (14);
n), and finishing.
6. The construction method of an energy-saving ventilated roofing structure according to claim 5, characterized in that: in the step B), the anchoring plate support adopts any one of a welding mode with the anchoring plate or a welding mode with the eave sealing plate (3).
7. The construction method of an energy-saving ventilated roofing structure according to claim 5, characterized in that: in the step C), the tension steel strand adopts any one of a mode of fixing one end and tensioning the other end or a mode of synchronously tensioning two ends.
CN201810928186.5A 2018-08-14 2018-08-14 Energy-saving ventilating roof structure and construction method thereof Pending CN110821059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810928186.5A CN110821059A (en) 2018-08-14 2018-08-14 Energy-saving ventilating roof structure and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810928186.5A CN110821059A (en) 2018-08-14 2018-08-14 Energy-saving ventilating roof structure and construction method thereof

Publications (1)

Publication Number Publication Date
CN110821059A true CN110821059A (en) 2020-02-21

Family

ID=69547392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810928186.5A Pending CN110821059A (en) 2018-08-14 2018-08-14 Energy-saving ventilating roof structure and construction method thereof

Country Status (1)

Country Link
CN (1) CN110821059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115419269A (en) * 2022-08-19 2022-12-02 中建八局第一建设有限公司 Construction method of aluminum veneer archaized roof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115419269A (en) * 2022-08-19 2022-12-02 中建八局第一建设有限公司 Construction method of aluminum veneer archaized roof
CN115419269B (en) * 2022-08-19 2023-07-11 中建八局第一建设有限公司 Construction method of aluminum veneer archaized roof

Similar Documents

Publication Publication Date Title
CN207727823U (en) Pitched roof waveform asphalt waterproofing plate and the mating building structure of square wave watt
WO2022041677A1 (en) Flat roof water drainage method
CN101781917A (en) Complex heat-preservation roof and construction method thereof
CN110552450A (en) Construction method of large-span short-vertical-edge vertical double-lock-edge titanium-zinc alloy metal roof
CN215106448U (en) Novel slope roof building structure
CN104631650A (en) Net plate external wall with insulating layer and construction method
CN110821059A (en) Energy-saving ventilating roof structure and construction method thereof
CN106939671A (en) Metal sandwich roof plate construction method
CN112695959A (en) Passive heat-bridge-free slope roof 300 mm-thick heat-insulation and decoration integrated construction process
CN110359617B (en) Ventilating, heat-insulating and heat-preserving integrated roof system and construction method
CN111576748A (en) Waterproof plate breathable composite energy-saving ventilation pitched roof system and construction process
CN106939699B (en) Construction method for galvanized steel sheet waterproof layer on inner side of open type ceramic plate curtain wall
CN106381959A (en) Construction technology for waterproof structure of exposed steel structure roof
CN212336545U (en) Oblique roofing tile hanging anti-leakage structure
CN215670583U (en) House building roof structure
CN110725424B (en) Passive steel structure house
CN104005503A (en) Plane roof modularized structure
CN212336560U (en) Slope roofing goes out roofing hood structure
CN107023123A (en) A kind of waterproof and insulation integrated sloping roof system of ventilating heat-proof
CN210342386U (en) Steel construction heat preservation waterproof roofing
JP2006161453A (en) Construction method for repairing batten seam roof
CN215211927U (en) Slope roof block tile roof ridge tile structure
CN219158171U (en) Steel structure supporting beam and supporting system for building
Awwad et al. Study of different pitched roof types
CN218597559U (en) Structure of outdoor platform poling of ultralow energy consumption assembly type structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination