CN110872879B - Modular wall - Google Patents
Modular wall Download PDFInfo
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- CN110872879B CN110872879B CN201811009250.6A CN201811009250A CN110872879B CN 110872879 B CN110872879 B CN 110872879B CN 201811009250 A CN201811009250 A CN 201811009250A CN 110872879 B CN110872879 B CN 110872879B
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- wall
- keel
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- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 47
- 239000010440 gypsum Substances 0.000 claims abstract description 47
- 229920000742 Cotton Polymers 0.000 claims abstract description 26
- 238000010079 rubber tapping Methods 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 6
- 239000012634 fragment Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
- E04B2/7453—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts with panels and support posts, extending from floor to ceiling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2/82—Removable non-load-bearing partitions; Partitions with a free upper edge characterised by the manner in which edges are connected to the building; Means therefor; Special details of easily-removable partitions as far as related to the connection with other parts of the building
- E04B2/821—Connections between two opposed surfaces (i.e. floor and ceiling) by means of a device offering a restraining force acting in the plane of the partition
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finishing Walls (AREA)
Abstract
The modular wall comprises two oppositely arranged wall units, wherein the wall units are connected through screws; the wall surface units comprise gypsum boards and filling cotton, first vertical keels are arranged on two side edges of each wall surface unit, the gypsum boards are fixed on the first vertical keels through self-tapping screws, the filling cotton is fixed between the gypsum boards and the first vertical keels, and the first vertical keels in the two oppositely arranged wall surface units are connected through the self-tapping screws; the first vertical keel at the first side of the wall unit extends out of the modular wall, and the first vertical keel at the second side of the wall unit is located inside the modular wall.
Description
Technical Field
The present application relates to, but is not limited to, fabricated walls, and more particularly to modular walls.
Background
In the prior art, the light metal keel and the gypsum board are often adopted for the production of the inner wall body for on-site construction, so that the construction site is messy, the construction wastes such as wastes and leftover materials are too much, the detachable cyclic utilization of the wall body is not suitable, the on-site labor amount is large, the labor cost is too high, and the construction size precision is low.
In order to respond to national policy guidelines on green, environmental protection, industrialization, rapidity, detachability and material recycling of novel buildings, a novel assembly wall body technology is urgently needed to be developed at present. The fabricated wall is a modular, removable structural system. The modules are linked through staggered joints to form a wall. Different modular construction solutions also exist with different constructional systems of assembled walls.
Wherein, the wall structure of burst formula is exactly an assembled wall structure, and this kind of wall structure divide into two the same modules, specifically comprises gypsum board, glass cotton and fossil fragments, and concrete structure is: each module is uniformly distributed by using 4C-shaped keels as vertical keels and 7 modeling keels as transverse keels, and is clamped with the vertical keels to form a keel frame, and gypsum boards are further installed on the outer side of the keel frame; the fixing operation between the wall body, the roof and the ground is realized through the heaven and earth L-shaped keel, and the connection and fixation between the two modules are realized through the bidirectional fastener.
The strength of the assembled wall body is poor, the structural stability is low, and the requirement for actually decorating the wall body cannot be effectively met.
Disclosure of Invention
The technical problem that this application was solved provides a modular wall body, can effectively overcome the structural stability defect that current assembled wall body exists, can effectively improve the structural stability of modular wall body.
In order to solve the technical problem, the application provides a modular wall, which comprises two oppositely arranged wall units, wherein the wall units are connected through screws;
the wall surface units comprise gypsum boards and filling cotton, first vertical keels are arranged on two side edges of each wall surface unit, the gypsum boards are fixed on the first vertical keels through self-tapping screws, the filling cotton is fixed between the gypsum boards and the first vertical keels, and the first vertical keels in the two oppositely arranged wall surface units are connected through the self-tapping screws;
the first vertical keel at the first side of the wall unit extends out of the modular wall, and the first vertical keel at the second side of the wall unit is located inside the modular wall.
The modular wall body can also have the following characteristics:
the first vertical keel at the first side edge of the wall surface unit is also fixedly provided with the side part of the gypsum board in the adjacent wall surface unit; the limit portion of the gypsum board of the second side edge department of wall unit is used for fixing on the first vertical keel in adjacent wall unit.
The modular wall body can also have the following characteristics:
among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board, cotton filler and first vertical keel, and the end self-tapping screw on inserting the first vertical keel of fixing to in another wall unit.
The modular wall body can also have the following characteristics:
the wall surface unit comprises two sub-wall surface units which are independently arranged and a middle bearing vertical keel which is used for connecting the sub-wall surface units; the edges of the gypsum boards in the two sub-wall units are connected, and the edges are fixed on the middle bearing vertical keel;
the middle bearing vertical keels in the two wall units are connected through self-tapping screws.
The modular wall body can also have the following characteristics:
among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board, cotton filler and middle bearing vertical keel, and the end inserts the self-tapping screw that is fixed to bearing vertical keel in the middle of another wall unit.
The modular wall body can also have the following characteristics:
also comprises an L-shaped keel;
one side edge of the L-shaped ceiling keel is connected with the roof, and the other side edge of the L-shaped ceiling keel is fixedly connected with the top of the wall unit through screws.
The modular wall body can also have the following characteristics:
the utility model also comprises an L-shaped keel;
one side edge of the L-shaped ground keel is connected with the ground, and the other side edge of the L-shaped ground keel is fixedly connected with the bottom of the wall unit through screws.
The modular wall body can also have the following characteristics:
the first vertical keel comprises a C-shaped keel, a U-shaped keel or a rectangular keel.
The modular wall body can also have the following characteristics:
the middle load-bearing vertical keel comprises a C-shaped keel or a rectangular keel.
The modular wall body can also have the following characteristics:
the filling cotton comprises glass cotton.
The above technical scheme of this application has following beneficial effect:
compared with the prior art, the modular wall and the components thereof which are preferably arranged can effectively overcome the defect of structural stability of the existing assembled wall, and the structural stability of the modular wall can be effectively improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
Fig. 1 is a schematic structural diagram of a modular wall according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is an enlarged view of a portion of FIG. 1 at D;
FIG. 6 is a schematic structural diagram of a wall unit according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a neutron wall unit according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an application of a wall module according to an embodiment of the present invention;
illustration of the drawings:
1-gypsum board, 2-filling cotton, 3-first vertical keel, 4-middle bearing vertical keel and 5-L-shaped ceiling keel.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1 to 8, in one embodiment of the present invention, a modular wall is provided, which includes two wall units disposed opposite to each other, and the wall units are connected to each other by screws; the wall surface unit comprises a gypsum board 1 and filling cotton 2, first vertical keels 3 are arranged on two side edges of the wall surface unit, the gypsum board 1 is fixed on the first vertical keels 3 through self-tapping screws, the filling cotton 2 is fixed between the gypsum board 1 and the first vertical keels 3, and the first vertical keels 3 in the two oppositely arranged wall surface units are connected through the self-tapping screws; the first vertical keel 3 at the first side of the wall unit extends out of the modular wall, and the first vertical keel 3 at the second side of the wall unit is positioned inside the modular wall.
In the concrete operation, the structural stability of the wall body module can be effectively improved through the connection operation between the first vertical keels 3 on the two sides; through the optimal arrangement position of the filling cotton 2, the direct contact between the gypsum board 1 and the keel can be effectively avoided, the cold and hot bridge phenomenon between the keel and the gypsum board 1 can be effectively avoided, and the comprehensive performance of the wall module can be effectively improved; wherein, the filling cotton 2 is preferably glass cotton, and further can effectively improve the comprehensive performance of the modular wall.
Compared with an assembled wall body in the prior art, the wall body module in the embodiment is not provided with the cross-brace keel, is more reasonable in structure, has fewer related components, can effectively reduce the overall cost of the wall body module, can also effectively reduce the overall weight of the wall body module, and is convenient for transportation, assembly and other operations. The wall unit in the embodiment can be selected to complete the assembly operation in a workshop, namely, the gypsum board 1, the filling cotton 2 and the first vertical keel 3 are pre-assembled in the workshop, so that the on-site assembly efficiency is further improved.
In addition, the surface of the first vertical keel 3 in the wall unit is contacted with the surface of the first vertical keel 3 in the wall unit on the other side; because above-mentioned contact is face contact, the installation operation need not accurate positioning, can allow to have certain displacement between the both sides wall unit, and the construction is more convenient, and the flexibility is better.
In this embodiment, the first vertical keel 3 at the first side of the wall unit is further fixed with the side of the gypsum board 1 in the adjacent wall unit; the side of gypsum board 1 at the second side of the wall units is used to fix on the first vertical keel 3 in the adjacent wall units.
In the concrete operation, the first vertical keel 3 at the first side edge can form an outward convex part of the current wall body module; correspondingly, the limit portion that adjacent wall body module is close to this first vertical keel 3 is the indent structure to make this first vertical keel 3 insert adjacent wall body module inside, and connect fixedly through self-tapping screw, with constitute the unsmooth grafting structure between the adjacent wall body module, tenon fourth of the twelve earthly branches structure promptly.
It should be noted that the first vertical keel 3 at the first side edge can also be adjusted by a specific setting position to realize wall modules of different structures; if the first vertical keel 3 at the first side edge is flush with the edge of the wall module, a flush structure is formed; if the first vertical keel 3 at the first side edge is positioned in the wall module and has a preset distance from the edge of the wall module, an inward concave structure is formed; if one side of the wall body module is of a flush structure and the other side of the wall body module is of a concave structure, the whole wall body module is of a flat-concave structure; if one side of the wall body module is of a flush structure and the other side of the wall body module is of a convex structure, the whole wall body module is of a flat-convex structure; if both sides of the wall body module are of concave structures, the wall body module is of a double-concave structure as a whole; if both sides of the wall module are convex structures, the wall module is a double convex structure as a whole.
In this embodiment, the modular wall further includes an L-shaped skullar bone 5; one side edge of the L-shaped skynman 5 is connected with the roof, and the other side edge of the L-shaped skynman 5 is fixedly connected with the top of the wall unit through screws; correspondingly, still include L type ground fossil fragments, one side of L type ground fossil fragments is connected with ground, and another side of L type ground fossil fragments passes through the screw connection with the bottom of wall unit fixedly. In the concrete operation, the setting of the above-mentioned L type longeron 5 of accessible and L type ground fossil fragments can effectively improve the installation convenience and the structural stability of wall body module.
In this embodiment, among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board 1, cotton 2 and first vertical keel 3, and the end self-tapping screw on inserting the first vertical keel 3 of fixing to in another wall unit. In the concrete operation, the self-tapping screw penetrating through the gypsum board 1, the filling cotton 2 and the first vertical keel 3 and inserted and fixed at the tail end of the first vertical keel 3 can be longer, such as 40 mm-100 mm, so as to meet the actual installation and connection requirements.
In order to further improve the modularization degree of the wall body, the wall surface unit comprises two sub-wall surface units which are independently arranged and a middle bearing vertical keel 4 used for connecting the sub-wall surface units; the edges of the gypsum boards 1 in the two sub-wall units are connected, and the edges are fixed on the middle bearing vertical keel 4; the middle bearing vertical keels 4 in the two wall units are connected through self-tapping screws.
In the specific operation, the modularization degree of the wall body module can be further improved through the two independently arranged sub-wall units; the two sub-wall units which are independently arranged can further reduce the transportation difficulty, facilitate the field carrying operation of workers and effectively reduce the labor intensity; the setting of vertical keel 4 is born to the accessible above-mentioned centre, can effectively guarantee the connection stability between two sub-wall units.
In this embodiment, among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board 1, cotton 2 and middle self-tapping screw that bears on the keel 4 that bears, and the end insertion is fixed to the middle of another wall unit and bears the keel 4. In the concrete operation, the self-tapping screws which penetrate through the gypsum board 1, the filling cotton 2 and the middle bearing vertical keels 4 and are inserted and fixed at the tail ends of the middle bearing vertical keels 4 can be longer self-tapping screws, such as 40-100 mm self-tapping screws, so as to meet the actual installation and connection requirements.
In this embodiment, the first vertical keel 3 includes a C-shaped keel, a U-shaped keel or a rectangular keel; the above-mentioned intermediate load-bearing stiles 4 comprise C-shaped or rectangular keels.
In the specific operation, the first mullion 3 is preferably a C-shaped mullion, the middle bearing mullion 4 is preferably a C-shaped mullion, and the opening direction of the first mullion 3 is perpendicular to the opening direction of the middle bearing mullion 4. That is, the first vertical keel 3 may adopt an arrangement structure shown in the drawing, that is, the opening direction is parallel to the panel direction of the gypsum board 1, one side of the first vertical keel 3 is connected and fixed with the gypsum board 1 by a tapping screw, and the other side is in contact with the side of the first vertical keel 3 in the wall unit on the other side; correspondingly, the opening direction perpendicular to 1 face direction of gypsum board that the centre bore the vertical joist 4 of above-mentioned, the opening direction that the centre bore the vertical joist 4 promptly faces gypsum board 1, and two sides that the centre bore the vertical joist 4 are located the limit of buckling of opening part for realize the fixed operation of gypsum board 1, the centre bore the bottom plate of vertical joist 4 then and the centre in the opposite side wall unit bore vertical joist 4 and contact each other.
It should be noted that, when the opening of the first vertical keel 3 is parallel to the board surface direction of the gypsum board 1, the first vertical keel 3 has stronger structural stability in the direction parallel to the board surface direction of the gypsum board 1, but has poorer structural stability in the direction perpendicular to the board surface direction of the gypsum board 1, and especially when the size of the first vertical keel 3 is too long, the bending phenomenon is more obvious, and at this time, the first vertical keel 3 and the modular wall body thereof are easy to generate the bending phenomenon perpendicular to the board surface direction of the gypsum board 1; when the opening direction of the middle bearing vertical keel 4 is perpendicular to the first vertical keel 3, namely the opening of the middle bearing vertical keel 4 faces the gypsum board 1, the middle bearing vertical keel 4 has stronger structural stability in the direction perpendicular to the board surface of the gypsum board 1, the phenomenon that the first vertical keel 3 is easy to bend in the direction can be effectively overcome, and the overall structural stability of the modular wall can be further improved; the preferred setting of above-mentioned opening direction mutually perpendicular aims at further improvement modular wall's structural stability, can effectively avoid the stability defect that the opening syntropy caused.
In the description of the present application, the terms "disposed," "connected," "fixed," and the like are used in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood by those skilled in the art that the embodiments of the present invention are described above, but the descriptions are only for the purpose of facilitating understanding of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the invention as defined by the appended claims.
Claims (10)
1. The modular wall is characterized by comprising two oppositely arranged wall units, wherein the wall units are connected through screws;
the wall surface units comprise gypsum boards and filling cotton, first vertical keels are arranged on two side edges of each wall surface unit, the gypsum boards are fixed on the first vertical keels through self-tapping screws, the filling cotton is fixed between the gypsum boards and the first vertical keels, and the first vertical keels in the two oppositely arranged wall surface units are connected through the self-tapping screws;
the first vertical keel at the first side edge of the wall unit extends out of the modular wall body, and the first vertical keel at the second side edge of the wall unit is positioned in the modular wall body;
the outer convex parts of the modular walls and the adjacent inner concave parts of the modular walls form a concave-convex inserting structure between the adjacent modular walls.
2. The modular wall of claim 1,
the first vertical keel at the first side edge of the wall surface unit is also fixedly provided with the side part of the gypsum board in the adjacent wall surface unit; the limit portion of the gypsum board of the second side edge department of wall unit is used for fixing on the first vertical keel in adjacent wall unit.
3. The modular wall according to claim 1 or 2,
among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board, cotton filler and first vertical keel, and the end self-tapping screw on inserting the first vertical keel of fixing to in another wall unit.
4. The modular wall according to claim 1 or 2,
the wall surface unit comprises two sub-wall surface units which are independently arranged and a middle bearing vertical keel which is used for connecting the sub-wall surface units; the edges of the gypsum boards in the two sub-wall units are connected, and the edges are fixed on the middle bearing vertical keel;
the middle bearing vertical keels in the two wall units are connected through self-tapping screws.
5. The modular wall of claim 4,
among two wall units that set up relatively, be provided with on at least one wall unit and run through gypsum board, cotton filler and middle bearing vertical keel, and the end inserts the self-tapping screw that is fixed to bearing vertical keel in the middle of another wall unit.
6. The modular wall of claim 1 or 2, further comprising an L-shaped ceiling keel;
one side edge of the L-shaped ceiling keel is connected with the roof, and the other side edge of the L-shaped ceiling keel is fixedly connected with the top of the wall unit through screws.
7. A modular wall according to claim 1 or claim 2, further comprising an L-shaped floor keel;
one side edge of the L-shaped ground keel is connected with the ground, and the other side edge of the L-shaped ground keel is fixedly connected with the bottom of the wall unit through screws.
8. The modular wall according to claim 1 or 2,
the first vertical keel comprises a C-shaped keel, a U-shaped keel or a rectangular keel.
9. The modular wall of claim 2,
the middle load-bearing vertical keel comprises a C-shaped keel or a rectangular keel.
10. The modular wall of claim 5, wherein the wall is a wall having a plurality of walls, and wherein the walls are connected to each other by a plurality of connectors
The filling cotton comprises glass cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009250.6A CN110872879B (en) | 2018-08-30 | 2018-08-30 | Modular wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009250.6A CN110872879B (en) | 2018-08-30 | 2018-08-30 | Modular wall |
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| CN110872879A CN110872879A (en) | 2020-03-10 |
| CN110872879B true CN110872879B (en) | 2021-03-23 |
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| CN201811009250.6A Active CN110872879B (en) | 2018-08-30 | 2018-08-30 | Modular wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726886A (en) * | 2020-12-31 | 2021-04-30 | 北新集团建材股份有限公司 | Horizontal assembly wall system of card with extending structure |
| CN112832418A (en) * | 2020-12-31 | 2021-05-25 | 北新集团建材股份有限公司 | Assembled wall body system |
| CN112726887A (en) * | 2020-12-31 | 2021-04-30 | 北新集团建材股份有限公司 | Horizontal clamping type wall with suspension device and construction method |
| CN112942633A (en) * | 2020-12-31 | 2021-06-11 | 北新集团建材股份有限公司 | Assembled wall with junction box and manufacturing method thereof |
| CN112814213A (en) * | 2020-12-31 | 2021-05-18 | 北新集团建材股份有限公司 | Assembly type wall with wire box and installation method thereof |
| CN112854549A (en) * | 2020-12-31 | 2021-05-28 | 北新集团建材股份有限公司 | Door and window opening structure of assembled wall and mounting method thereof |
| CN112814208A (en) * | 2020-12-31 | 2021-05-18 | 北新集团建材股份有限公司 | Horizontal clamping type wall with suspension device and construction method |
| CN112814207A (en) * | 2020-12-31 | 2021-05-18 | 北新集团建材股份有限公司 | Horizontal clamping wall with line box pipeline and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201943203U (en) * | 2010-12-08 | 2011-08-24 | 中冶建筑研究总院有限公司 | Composite insulation and guard system |
| CN203821689U (en) * | 2014-05-09 | 2014-09-10 | 国际竹藤中心 | Double-layer hollow thermal insulation wall module for building |
| CN205822522U (en) * | 2016-06-08 | 2016-12-21 | 金刚幕墙集团有限公司 | A kind of curtain wall panel structure of high intensity |
| CN106760041A (en) * | 2017-03-23 | 2017-05-31 | 中国建筑材料科学研究总院 | A kind of wall, the combination of assembled wall and its installation method |
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