CN214884602U - External hanging wall board - Google Patents
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- CN214884602U CN214884602U CN202120781582.7U CN202120781582U CN214884602U CN 214884602 U CN214884602 U CN 214884602U CN 202120781582 U CN202120781582 U CN 202120781582U CN 214884602 U CN214884602 U CN 214884602U
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Abstract
The utility model relates to the technical field of assembly type buildings, in particular to an externally-hung wallboard, the top surface of which is in a three-level step shape and comprises a first drainage slope, a second drainage plane and a third drainage slope from outside to inside, the bottom surface of the externally-hung wallboard is in a three-level step shape coupled with the top surface of the externally-hung wallboard, the first drainage slope and the third drainage slope are high inside and low outside, and the second drainage plane is in a horizontal shape; one side of the external wall board is provided with a groove, and the other side is provided with a lug which is coupled with the groove. The structure that the external wall boards are coupled in the horizontal and vertical directions can furthest prolong the path of water entering the room from the outside, and when the external material is in water-proof failure, the structure of the external wall board can also have the function of blocking water; by adopting multiple waterproof barriers, the outermost waterproof coating has the characteristics of high strength, high elongation, high resilience, fatigue resistance, excellent aging resistance and the like, and meets the first waterproof requirement on the outer surface of the fabricated building.
Description
Technical Field
The utility model belongs to the technical field of the assembly type structure technique and specifically relates to an assembled externally-hung wallboard.
Background
In recent years, in order to promote the development of building industrialization, the nation vigorously pushes assembly type buildings, and various provinces and cities respond, and the assembly rate of newly built buildings is required to meet certain requirements. The assembly type building is an effective way for promoting the traditional construction mode to be changed into the modern construction modes such as saving, intensive, environment-friendly, green, scientific and technology and the like. The non-bearing prefabricated components are generally applied in engineering, and the prefabricated external wall panel has great use requirements in China. The prefabricated concrete outer wall board is used as a component of an outer building enclosing system of a building, is closer to a curtain wall structure and plays roles in enclosing and decorating. Because the mass and the rigidity of the member are both large and the self deformability is poor, the member is connected with the main structure in a point mode without casting concrete in situ. And the width of the joint should meet the requirements of deformation caused by interlayer displacement, construction errors and temperature difference of the main structure, so that the problem of joint water leakage of the building outer enclosure system is caused remarkably, and the development of the assembly type building in China is restricted to a certain extent.
The waterproof engineering of the building is always a very important link in the building construction, and the quality of the construction quality of the waterproof engineering directly influences the improvement of the future use function of the building. At present, the joints of prefabricated external wall panels mainly adopt a fortification principle of 'mainly leading and secondarily blocking', and adopt a principle of combining material waterproofing and structural waterproofing. The joints of the external wall board are mainly divided into horizontal joints and vertical joints, the joints are respectively provided with tongue-and-groove or height difference sealant waterproof, pressure reduction cavities and waterproof rubber strips from outside to inside, and polyurethane is arranged at the positions of cross joints on the outer wall surface to enhance the waterproof performance.
The waterproof performance of the outer wall is directly related to the performance and durability of the sealing material, although the MS sealant with better quality can be claimed to be used for 20-25 years at present, the MS sealant can be aged and failed in 5-10 years due to wind and sunshine, and needs to be maintained frequently; the sealant is not compact, not full, not uniform, not enough in glue thickness and the like, and potential water seepage hidden danger exists; once the sealant fails, water can be driven into the sealant without any barrier, so that a serious water seepage phenomenon is generated.
Aiming at the problem of water leakage of joints of the outer walls of the fabricated building, a plurality of experts and scholars in China also provide own methods. For example, the invention patent with the patent application number of cn202010743405.x discloses a sealing and waterproof structure system for an assembly type building, which comprises a plurality of prefabricated exterior wall units connected with each other, wherein the joint of two adjacent prefabricated exterior wall units comprises a main embedding part and an auxiliary embedding part which are embedded with each other, a waterproof structure is fixed between the main embedding part and the auxiliary embedding part, and the waterproof structure comprises a waterproof layer and an elastic mechanism fixedly connected with the waterproof layer. The invention patent with the patent application number of CN202010578493.2 discloses a waterproof structure at the joint of an assembled light gauge steel composite wallboard, which is arranged at the joint of the light gauge steel composite wallboard, the waterproof structure is a cavity waterproof structure, and a sealing box body is arranged in the cavity waterproof structure: the upper part of the sealing box body is provided with an open mouth with edges, the edges of the upper part of the sealing box body and the abutted seams of the light steel keel composite wall plate are sealed by sealing glue: a PE foam rod is filled in the sealed box body through an opening of the sealed box body and is leveled so as to close the opening at the upper end of the sealed box body; the lower end of the sealing box body is fixedly connected with a profiled steel sheet of the light steel keel composite wallboard through a connecting piece.
The application relates to the waterproof performance optimization to the assembled wall body, but there is certain inconvenience during the operation, there is the logical seam wantonly in the structure, and after the sealing material became invalid, water just can get into indoorly, can't play effectual waterproof drainage effect, therefore still has the space of further promotion in the practical application.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the external wall panel is provided.
The utility model provides a technical scheme that its technical problem adopted is: the externally hung wall boards are spliced horizontally and vertically to form one surface.
The top surface of the external wall board is in a three-stage step shape and comprises a first drainage slope, a second drainage plane and a third drainage slope from outside to inside, and the bottom surface of the external wall board is in a three-stage step shape coupled with the top surface of the external wall board. The bottom surface and the top surface are in a complementary relation, the three grooves are changed into convex cambered surfaces, and when the upper wallboard and the lower wallboard are spliced, the three grooves can be completely coupled without leaving gaps.
The first drainage slope and the third drainage slope are high inside and low outside, the second drainage plane is horizontal, a first drainage groove is formed in the first drainage slope, a second drainage groove is formed in the second drainage plane, and a third drainage groove is formed in the third drainage slope;
the middle of the first drainage groove, the middle of the second drainage groove and the middle of the third drainage groove are low, and the two sides of the third drainage groove are high.
Furthermore, one side of the external wall-hanging plate is provided with a groove, the other side is provided with a lug which is coupled with the groove,
the grooves comprise a first water retaining groove arranged on the side edge of the first drainage slope, a second waterproof groove, a third waterproof groove arranged on the side edge of the third drainage slope and a fourth waterproof groove,
the convex blocks comprise a first water retaining convex block arranged on the side edge of the first drainage slope, a second water retaining convex block, a third water retaining convex block and a fourth water retaining convex block arranged on the side edge of the third drainage slope,
the first water retaining groove is embedded with the first water retaining convex block, the second waterproof convex block is embedded with the second waterproof groove, the third water retaining convex block is embedded with the third water retaining groove, and the fourth water retaining groove is embedded with the fourth water retaining convex block. When the left wallboard and the right wallboard are spliced, the left wallboard and the right wallboard can be completely coupled without leaving gaps. The four groups of concave-convex embedded designs can prolong the path of water entering the room from the outside of the plate to the maximum extent, and form four groups of water retaining inclined planes to increase the zigzag degree of water entering.
Furthermore, the first water retaining groove and the fourth water retaining groove, and the second waterproof bump and the third water retaining bump are respectively symmetrical up and down,
the first water retaining groove, the second waterproof bump, the third water retaining bump and the fourth waterproof groove are combined to form a first water retaining plane and a second water retaining plane respectively.
Furthermore, the length L of the first water retaining plane and the second water retaining plane is set to be 35mm, so that the requirements of most plate seam widths can be met. When the distance between the two plates is less than 35mm, a through seam can not be formed between the two plates, and the water can be effectively prevented from entering.
The height difference between the inside and the outside of the first drainage slope and the third drainage slope is 10 mm;
the radian of the first drainage groove and the third drainage groove is set to be 3 degrees, and the radian of the second drainage groove is set to be 5 degrees;
further, the height difference H between the top surface of the bottom edge of the first drainage slope and the top surface of the second drainage plane1The height difference H between the top surface of the second drainage plane and the top surface of the top edge of the third drainage slope2Are all set to 30 mm. Many current specifications set the width of the assembled building slab joints, and some requirements<20mm, some between 10 and 35mm, and some between 10 and 30 mm. The step height difference is set to be 30mm, and the requirements of most plate seam widths can be met.
When the board seam width <30mm, the ladder position of two upper and lower boards can fully laminate, has blockked the passageway of water follow board extroversion inboard circulation to a ladder and two ladders, two ladders and third-order ladder form the duplicate respectively and block, and the duplicate prevents the entering that more can effectively prevent water. Even if the plate seam is larger than 30mm, the 9-first drainage slope and the 11-third drainage slope utilize the principle of natural vertical flow of water, and grooves are formed in the slopes, the middle of the slopes is low, the two sides of the slopes are high, water is effectively prevented from flowing into the vertical seam in the horizontal direction, the water is fully collected to the center of the plate, and the drainage pressure of the vertical seam is reduced.
Furthermore, the surfaces of the first drainage slope, the second drainage plane and the third drainage slope are sprayed with water repellent layers with the thickness of 1 mm. The water repellent layer is organosilicon emulsion building water repellent, and the water repellent mechanism is that the surface characteristic of silicate material is changed effectively to reach water repellent effect by means of the relatively strong chemical affinity between organosilicon compound and inorganic silicate material. The organosilicon emulsion type building water repellent has the characteristics of good stability, low cost, simple application process and the like. By using a spraying and brushing mode, a film layer can be formed on the surface, and the coating has the remarkable characteristics of unique function and wide application: firstly, the waterproof performance is excellent, if a hydrophobic coat is worn on the wall surface treated by the waterproof coating, rainwater can naturally roll off in a bead shape when falling on the surface, if lotus leaves roll off the beads, the wall surface is always in a dry state; secondly, the air permeability is good, and the moisture of the wall body can be released.
Furthermore, outdoor weather-proof sealant, outdoor backing material and water-swelling water stop strip are sequentially filled on the outdoor side of the coupling position between the external wall-hanging panels from the outdoor direction to the indoor direction, and the water-swelling water stop strip, the indoor backing material and the indoor weather-proof sealant are sequentially filled on the indoor side from the outdoor direction to the indoor direction, so that a better waterproof effect is achieved.
The outdoor backing material and the indoor backing material adopt foamed closed-cell polyethylene rods and foamed chloroprene rubber rods, and the outdoor weather-proof sealant and the indoor weather-proof sealant adopt MS sealant.
The construction method of the assembly type outer wall panel waterproof system comprises the following steps:
firstly, prefabricating an external wallboard: prefabricating and maintaining the external wall panel according to the requirement, and prefabricating the external wall panel with one side provided with three-stage steps according to the size and placing the external wall panel at four outer edges;
secondly, storing the external wall panel: placing the prefabricated external wall board in a storage rack, and warehousing the external wall board to balance left and right, wherein the gravity center is vertical to the horizontal; when the external wall panel is stored in the integral shelf, the length of the shelf is greater than that of the external wall panel, and the left and right placing weights are the same;
thirdly, transporting the external wall boards: selecting a proper transport vehicle according to the condition, checking whether the transport frame is damaged before loading, and repairing or replacing the transport frame immediately if the transport frame is damaged; a transportation frame limiting part is additionally welded on the flat car, so that the transportation frame is prevented from moving or collapsing in the transportation process; meanwhile, the external wall boards are placed and arranged according to the hoisting sequence, the external wall board hoisted firstly is placed on the outer side of the goods shelf, and the external wall board hoisted later is placed on the inner side; the external wall boards are still stored in the storage racks after being transported to the site, and are stored on the concrete hardened ground or the artificially treated natural terrace;
fourthly, hoisting the external wall board: selecting a proper hoisting tool, stopping the member from descending when the distance from the installation position is 50cm, checking whether the front and back surfaces of the exterior wall cladding are consistent with the front and back surfaces of a drawing, and checking whether the thickness and the position of a cushion block marked on the ground are consistent with the actual thickness and the position of the cushion block; accurately adjusting the bottom of the external wall board according to the control line to enable the bottom position of the external wall board to coincide with the position of the measurement pay-off; adjusting the horizontal joint according to the elevation, controlling the width of the vertical joint according to the end line of the external wallboard, or selecting a cushion block with proper width according to the width of the vertical joint to place the adjacent board end to control the width of the joint; meanwhile, checking the verticality of the external wall board by using an aluminum alloy external hanging ruler until the verticality meets the specification; fixing the external wall panel by using an inclined support, and connecting the external wall panel and the floor into a whole by using a bottom positioning piece; the adjacent external wall boards are connected by a straight connecting piece or an L-shaped connecting piece and are fixed by electric welding after the installation is finished;
fifthly, sealing the coupling part between the external wall boards: after the external wall panel is installed, performing sealant waterproof construction on the horizontal and vertical coupling parts, and cleaning the joints of the coupling parts to ensure no residue and dryness; the specification of the backing material is reasonably selected according to the width of the gap, outdoor weather-resistant sealant, outdoor backing material and water-swelling water stop strip are sequentially filled on the outdoor side of the coupling position between the external wall-hanging panels from the outdoor direction to the indoor direction, the water-swelling water stop strip, indoor backing material and indoor weather-resistant sealant are sequentially filled on the indoor side from the outdoor direction to the indoor direction, the thicknesses of the outdoor weather-resistant sealant and the indoor weather-resistant sealant are 1/2 of the width of the gap, and the thickness of the outdoor weather-resistant sealant and the thickness of the indoor weather-resistant sealant are more than or equal to 8 mm;
sixthly, spraying waterproof paint: after the sealing treatment is finished, one or two or more than two waterproof coatings of super-elastic single-component polyurethane waterproof coating, transparent waterproof glue special for outer walls and graphene double-component polyurethane waterproof coating are sprayed on the surface of the wall.
The waterproof coating has the characteristics of high strength, high elongation, high resilience, fatigue resistance, excellent aging resistance and the like, and meets the first waterproof requirement of the outer surface of the fabricated building.
And sixthly, when the superstrong elasticity single-component polyurethane waterproof coating is adopted, the superstrong elasticity single-component polyurethane waterproof coating comprises isocyanate, polyether and an auxiliary agent, and a high-elasticity waterproof coating film is formed by reacting with moisture and steam in the air. The characteristics of the alloy meet the following requirements: a. the performance is excellent, and the physical and mechanical properties of the cured coating film are excellent, and the cured coating film has the characteristics of high strength, high elongation, high resilience, fatigue resistance, aging resistance and the like; b. the weather resistance is strong, and the weather resistance can adapt to the climate change in hot and cold regions; c. the color is various, and the required color can be obtained by only adding corresponding pigments.
The concrete construction steps are as follows:
carrying out primary layer treatment: the surface of the outer hanging wallboard is smooth, firm and dry, and has no sharp concave-convex, honeycomb, pitted surface and peeling, and no oil stain; constructing under the environment of loose porous basal plane, high temperature and high humidity or insolation, and treating the surface of the external hanging wallboard by using a special basal layer treating agent;
secondly, adding a waterproof layer for construction: the foundation details such as the internal and external corners, the pipe roots, the horizontal vertical joints and the like are subjected to additional waterproof layer construction firstly, and the total thickness is ensured to be not less than 1mm by additional coating for 2-4 times; firstly additionally laying a layer of polyester non-woven fabric at the seam position of the horizontal and vertical coupling position, and then additionally coating paint to form a structure of additionally laying a waterproof layer in an empty state;
construction of a large-surface coating waterproof layer: uniformly coating with a rubber or metal scraper for 2-3 times; first thin coating is carried out to seal pores on the surface of the board, the next construction is carried out after the upper layer of coating film is dried, and the brushing direction of the next construction is vertical to that of the upper construction; the drying time in the low-temperature environment is prolonged at the interval of 24 hours for each construction;
fourthly, head collection and edge sealing: sealing the coating adding paint;
and sixthly, when the special transparent waterproof glue for the outer wall is adopted, the special transparent waterproof glue for the outer wall comprises modified acrylic emulsion, filler and an auxiliary agent, and is processed by adopting an advanced scientific method to form the novel transparent waterproof coating glue. The characteristics of the alloy meet the following requirements: A. the performance is excellent, and the paint has good ultraviolet resistance, heat resistance, acid and alkali resistance, weather resistance and other properties; B. the adhesive property is strong, the coating film has better film forming property, strong adhesive force and toughness, and can resist the stress generated when the base layer is deformed and cracked; C. the coating is transparent and colorless, the original wall decoration effect cannot be damaged after the coating, and the phenomena of yellowing, dust adhesion and the like cannot occur; D. the construction is convenient, the operation is safe, the construction is convenient, and the paint can be directly sprayed or painted on the wall surface.
The concrete construction steps are as follows:
1) base layer treatment: the surface of the external hanging wallboard needs to be compact, firm, dry, uneven and cracked, and waterproof putty needs to be scraped;
2) and (3) waterproof layer construction: 2-3 times of brushing, wherein the coating is dried and solidified and does not stick to hands before brushing and then is coated again, and the brushing directions are criss-cross; the interval time between each layer is determined by that the previous layer of coating film is dry and non-sticky, and the maximum coating interval time is not more than 36 hours;
3) and (4) checking: after the waterproof layer is constructed, all parts of the whole wall surface are inspected, and the coating layer does not have the phenomena of brush leakage, layering, edge warping, cracks and the like;
and sixthly, when the graphene bi-component polyurethane waterproof coating is adopted, the graphene bi-component polyurethane waterproof coating comprises A, B components, wherein the A component comprises polyether and isocyanate, the B component comprises an auxiliary agent and a filler, the A, B component is uniformly stirred according to a certain mixing proportion, is coated on a base surface, and forms an integral elastic waterproof adhesive film after being cured. The characteristics of the alloy meet the following requirements: 1. the coating is compact, the dispersibility is good, the defoaming effect is good, pinholes and bubbles are not easy to generate in the coating during the construction process, and the integral compactness of the coating is good; 2. double impermeability: the graphene technology is adopted, so that the water permeable path of the coating is prolonged, and the barrier property of the coating is enhanced; 3. excellent mechanical property: the coating film has high tensile strength, good elongation and good rebound resilience, and can effectively resist the expansion and cracking deformation of the base layer.
The concrete construction steps are as follows:
i. coating material preparation: A. the component B comprises the following components in a weight ratio of 1: 3, mixing, fully stirring uniformly until the color is glossy, and coating the coating on the surface of the wallboard layer by layer for about 2-3 minutes, and curing to form an integral continuous waterproof adhesive film;
ii, plate surface requirement: the product is dry, solid, flat, dustless, greasy-free and clear water-free;
and iii, waterproof layer construction: the construction is carried out for two to three times, the mixed paint is uniformly coated on the board surface by a rubber scraper or a palm brush, the coating is repeatedly carried out in two vertical directions, the penetration and the bonding of the paint on the board surface are ensured, and the next paint construction can be carried out after the previous coating is dried and cured; the mechanical construction is as follows: uniformly spraying the mixed coating on a base surface by using special spraying equipment, and performing second coating spraying construction after the first coating is dried and cured, wherein the coating is not too thick every time, and generally needs to be sprayed for two to three times;
construction of a protective layer: before the last coating is not cured, coarse sand is scattered on the surface of the coating, so that the protective layer and the waterproof layer are firmly bonded, and the protective layer is constructed after the coating thickness meets the design requirement and is qualified through inspection and acceptance.
The utility model has the advantages that:
1. the horizontal and vertical coupling structure between the external wall boards can prolong the path of water entering the room from the outdoor to the maximum extent, and when the width of the joint between every two external wall boards is less than 30mm, the joint of the boards has no passage, and when the external material is in water-proof failure, the structure of the external wall boards still has a barrier effect on the water, so that the water cannot directly enter the room;
2. the water repellent sprayed on the surfaces of the first drainage slope, the second drainage plane and the third drainage slope can form a bead lotus effect, so that when rainwater enters the plate joint, the retention of the rainwater on the joint surface is reduced, and the water permeation effect is reduced;
3. by adopting multiple waterproof barriers, the outermost waterproof coating has the characteristics of high strength, high elongation, high resilience, fatigue resistance, excellent aging resistance and the like, and meets the first waterproof requirement on the outer surface of the fabricated building.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an assembly structure effect diagram between adjacent outer hanging wallboards of the utility model;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic view of the vertical seam construction of the outer wall panel of the present invention;
FIG. 4 is a schematic view of the waterproof measure of the present invention;
FIG. 5 is a schematic view of another aspect of the present invention;
fig. 6 is a schematic structural view of the whole assembly of the present invention.
Reference numbers in the figures: 1-external wall panel, 5-first water retaining groove, 51-first water retaining bump, 52-first water retaining slope, 6-second water retaining bump, 61-second water retaining groove, 62-second water retaining slope, 7-third water retaining bump, 71-third water retaining groove, 72-third water retaining slope, 8-fourth water retaining groove, 81-fourth water retaining bump, 82-fourth water retaining slope, 9-first drainage slope, 91-first drainage groove, 10-second drainage plane, 101-second drainage groove, 11-third drainage slope, 111-third drainage groove, 12-outdoor backing material, 13-outdoor weather-resistant sealant, 14-indoor weather-resistant sealant, 15-indoor backing material, 16-water repellent layer, 17-a first water retaining plane, and 18-a second water retaining plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the exterior wall panel 1 shown in fig. 1 to 6, the exterior wall panels 1 are horizontally inserted into each other and vertically spliced to form a surface.
The top surface of the external wall board 1 is in a three-level step shape and comprises a first drainage slope 9, a second drainage plane 10 and a third drainage slope 11 from outside to inside, the bottom surface of the external wall board 1 is in a three-level step shape coupled with the top surface thereof,
the first drainage slope 9 and the third drainage slope 11 are high inside and low outside, the second drainage plane 10 is horizontal, a first drainage groove 91 is formed in the first drainage slope 9, a second drainage groove 101 is formed in the second drainage plane 10, and a third drainage groove 111 is formed in the third drainage slope 11;
the middle of the first drain groove 91, the second drain groove 101 and the third drain groove 111 is low, and the two sides are high.
One side of the external wall panel 1 is provided with a groove, the other side is provided with a lug which is coupled with the groove,
the grooves comprise a first water retaining groove 5 arranged at the side edge of the first drainage slope 9, a second water preventing groove 61, a third water preventing groove 71 and a fourth water preventing groove 8 arranged at the side edge of the third drainage slope 11,
the convex blocks comprise a first water retaining convex block 51 arranged on the side edge of the first drainage slope 9, a second water retaining convex block 6, a third water retaining convex block 7 arranged on the side edge of the third drainage slope 11 and a fourth water retaining convex block 81,
the first water retaining groove 5 is embedded with the first water retaining bump 51, the second waterproof bump 6 is embedded with the second waterproof groove 61, the third water retaining bump 7 is embedded with the third water retaining groove 71, and the fourth water retaining groove 8 is embedded with the fourth water retaining bump 81.
The first water retaining groove 5, the fourth water retaining groove 8, the second waterproof bump 6 and the third water retaining bump 7 are respectively symmetrical up and down,
the first water retaining groove 5, the second waterproof bump 6, the third water retaining bump 7 and the fourth waterproof groove 8 are combined to form a first water retaining plane 17 and a second water retaining plane 18 respectively.
The length L of the first water retaining plane 17 and the second water retaining plane 18 is set to 35 mm.
The height difference between the inside and the outside of the first drainage slope 9 and the third drainage slope 11 is 10 mm;
the radian of the first drainage groove 91 and the third drainage groove 111 is set to be 3 degrees, and the radian of the second drainage groove 101 is set to be 5 degrees;
the height difference H between the top surface of the bottom edge of the first drainage slope 9 and the top surface of the second drainage plane 101The height difference H between the top surface of the second drainage plane 10 and the top surface of the top edge of the third drainage slope 112Are all set to 30 mm.
And the surfaces of the first drainage slope 9, the second drainage plane 10 and the third drainage slope 11 are sprayed with a water repellent layer 16 with the thickness of 1 mm.
Outdoor weather-resistant sealant 13, outdoor backing material 12 and water-swelling water stop strip are sequentially filled on the outdoor side of the coupling part between the external wall boards 1 from the outdoor direction to the indoor direction, and the water-swelling water stop strip, indoor backing material 15 and indoor weather-resistant sealant 14 are sequentially filled on the indoor side from the outdoor direction to the indoor direction.
The outdoor backing material 12 and the indoor backing material 15 are foamed closed-cell polyethylene rods and foamed chloroprene rubber rods, and the outdoor weather-resistant sealant 13 and the indoor weather-resistant sealant 14 are MS sealants.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. An externally hung wallboard, which is characterized in that: the top surface of the external wall board (1) is in a three-level step shape and comprises a first drainage slope (9), a second drainage plane (10) and a third drainage slope (11) from outside to inside, the bottom surface of the external wall board (1) is in a three-level step shape coupled with the top surface of the external wall board, the first drainage slope (9) and the third drainage slope (11) are high in inside and low in outside, and the second drainage plane (10) is in a horizontal shape.
2. The drywall of claim 1, wherein: one side of the external wall-hung plate (1) is provided with a groove, and the other side is provided with a lug which is coupled with the groove.
3. The drywall of claim 1, wherein: the water-saving device is characterized in that a first drainage groove (91) is formed in the first drainage slope (9), a second drainage groove (101) is formed in the second drainage plane (10), a third drainage groove (111) is formed in the third drainage slope (11), and the middle parts of the first drainage groove (91), the second drainage groove (101) and the third drainage groove (111) are low and high on two sides.
4. The drywall of claim 2, wherein: the grooves comprise a first water retaining groove (5) arranged at the side edge of the first drainage slope (9), a second waterproof groove (61), a third waterproof groove (71) arranged at the side edge of the third drainage slope (11), and a fourth waterproof groove (8),
the convex blocks comprise a first water retaining convex block (51) arranged on the side edge of the first drainage slope (9), a second water retaining convex block (6), a third water retaining convex block (7) arranged on the side edge of the third drainage slope (11) and a fourth water retaining convex block (81),
the first water retaining groove (5) is embedded with the first water retaining lug (51), the second waterproof lug (6) is embedded with the second waterproof groove (61), the third water retaining lug (7) is embedded with the third water retaining groove (71), and the fourth water retaining groove (8) is embedded with the fourth water retaining lug (81).
5. The drywall of claim 4, wherein: the first water retaining groove (5) and the fourth water retaining groove (8), the second waterproof bump (6) and the third water retaining bump (7) are respectively symmetrical up and down,
the first water retaining groove (5), the second waterproof bump (6), the third water retaining bump (7) and the fourth waterproof groove (8) are combined to form a first water retaining plane (17) and a second water retaining plane (18) respectively.
6. The drywall of claim 1, wherein: and the surfaces of the first drainage slope (9), the second drainage plane (10) and the third drainage slope (11) are sprayed with a water repellent layer (16).
7. The drywall of claim 2, wherein: outdoor weather-resistant sealant (13), outdoor backing material (12) and water-swelling water stop strip are sequentially filled on one outdoor side of the coupling part between the external wall boards (1) from the outdoor direction to the indoor direction, and the water-swelling water stop strip, the indoor backing material (15) and the indoor weather-resistant sealant (14) are sequentially filled on one indoor side from the outdoor direction to the indoor direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120781582.7U CN214884602U (en) | 2021-04-15 | 2021-04-15 | External hanging wall board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120781582.7U CN214884602U (en) | 2021-04-15 | 2021-04-15 | External hanging wall board |
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| CN214884602U true CN214884602U (en) | 2021-11-26 |
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| CN202120781582.7U Active CN214884602U (en) | 2021-04-15 | 2021-04-15 | External hanging wall board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232833A (en) * | 2021-12-18 | 2022-03-25 | 山西省安装集团股份有限公司 | Assembled building wall and assembled building |
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2021
- 2021-04-15 CN CN202120781582.7U patent/CN214884602U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232833A (en) * | 2021-12-18 | 2022-03-25 | 山西省安装集团股份有限公司 | Assembled building wall and assembled building |
| CN114232833B (en) * | 2021-12-18 | 2023-03-28 | 山西省安装集团股份有限公司 | Assembled building wall and assembled building |
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