CN217054004U - External wall panel and external wall panel connecting structure - Google Patents

Abstract

The utility model provides an external wall panel and external wall panel connection structure, external wall panel include tectonic layer, heat preservation and waterproof construction. Wherein, the heat-insulating layer is arranged on one side of the structural layer; the waterproof structure is coated on the surface of one side of the heat-insulating layer, which is back to the structural layer, and the circumferential surface of the heat-insulating layer. When using this side fascia, can cover the position that exposes of heat preservation comprehensively through waterproof construction, effectively avoid steam to get into the heat preservation, avoid the thermal insulation performance of heat preservation to reduce, solved among the prior art structure heat preservation and decorated the integration coincide side fascia the weak defect of waterproof performance.

Description

External wall panel and external wall panel connecting structure

Technical Field

The utility model relates to a building element technical field, concretely relates to side fascia and side fascia connection structure.

Background

The fabricated building has the advantages of high construction speed, less labor demand, less wet operation, high building construction quality, less building construction dust and the like. Unlike traditional cast-in-place buildings, fabricated buildings are made up of prefabricated components. The prefabricated part that commonly uses has the side fascia, and a plurality of side fascia concatenation is in order to form the outer wall of assembly type structure. Among various external wall panels, the laminated external wall panel with the integrated structure heat preservation and decoration has better heat preservation and energy saving effects. Compare with traditional heat preservation coincide side fascia, because A level insulation material is chooseed for use to the heat preservation of this kind of coincide side fascia, and is located outside the cavity rather than the cavity in, so can stop fire prevention hidden danger, safe and reliable more.

At present, for the laminated external wall panel with integrated structure heat preservation and decoration, the grade A heat preservation material selected by the heat preservation layer mainly comprises rock wool, foam concrete, foam glass, foam ceramic, vacuum heat insulation plate, aerogel heat preservation felt, non-combustible polystyrene board and the like. However, the class-A thermal insulation materials all belong to inorganic thermal insulation materials, and the degassing gel thermal insulation felt has the defect that the thermal insulation performance is reduced to different degrees after water absorption, so that the application of the laminated external wall panel in an assembly type building is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the waterproof performance of the coincide side fascia of the integration is decorated in structure heat preservation among the prior art is more weak to a side fascia and side fascia connection structure are provided.

In order to solve the problem, the utility model provides an external wall panel, it includes tectonic layer, heat preservation and waterproof construction. Wherein, the heat-insulating layer is arranged on one side of the structural layer; the waterproof structure is coated on the surface of one side of the heat-insulating layer, which is back to the structural layer, and the circumferential surface of the heat-insulating layer.

Optionally, the waterproof structure is provided as a composite protective layer, and the composite protective layer includes a first waterproof protective layer, a reinforcing layer and a second waterproof protective layer which are sequentially arranged outside the heat preservation layer.

Optionally, the waterproof structure comprises a composite protective layer and a waterproof coating. The composite protective layer covers the surface of one side, back to the structural layer, of the heat insulation layer and the area, far away from the structural layer, of the circumferential surface of the heat insulation layer, and comprises a first waterproof protective layer, a reinforcing layer and a second waterproof protective layer which are sequentially arranged outside the heat insulation layer; the waterproof coating coats the circumferential surface of the heat-insulating layer in the area close to the structural layer.

Optionally, the first waterproof layer is arranged as an ultra-high performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite material layer or a high-performance polymer mortar layer; and/or the reinforcing layer is arranged as a mesh cloth; and/or the second waterproof protective layer is arranged into an ultrahigh-performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite material layer or a high-performance polymer mortar layer.

Optionally, the outer corners of the insulation layer are chamfered to cooperate with the composite protective layer to form a reinforced corner structure.

Optionally, corner protectors are provided within the reinforced corner structure.

Optionally, the external wall panel further comprises a connector, wherein the connector is arranged to penetrate through the waterproof structure, the insulating layer and the structural layer at the same time.

Optionally, the connector comprises a head and a shaft. Wherein, the body of rod is connected with the end, is close to the one end of end to the one end of keeping away from the end by the body of rod, has set gradually first barb and second barb on the body of rod, and the contained angle between first barb and the body of rod axis is greater than the contained angle between second barb and the body of rod axis.

The utility model also provides an external wall panel connecting structure, which comprises at least two external wall panels which are spliced with each other, wherein the external wall panels are the external wall panels, a first gap is formed between the heat preservation layers of two adjacent external wall panels, and a second gap is formed between the structural layers of two adjacent external wall panels; a first sealing material, a backing material and a cavity are sequentially arranged in the first gap from outside to inside, and a second sealing material is arranged in the second gap.

Optionally, the external wall panel connection structure comprises two adjacent external wall panels connected up and down, a first gap and a second gap are formed between the two external wall panels, and the first gap and the second gap are horizontally aligned or staggered up and down; and/or side fascia connection structure includes the side fascia of connecting about two adjacent, forms first gap and the second gap of equal vertical setting between two side fascia, and first gap and second gap level align the setting.

The utility model has the advantages of it is following:

1. the utility model provides an external wall panel is provided with waterproof construction outside the heat preservation, because waterproof construction cladding heat preservation is the surface of tectonic layer one side dorsad, and the circumference surface of cladding heat preservation, so can cover the position that exposes of heat preservation comprehensively through waterproof construction, effectively avoid steam to get into the heat preservation, avoid the thermal insulation performance reduction of heat preservation. Particularly, when the insulating layer is made of A-grade insulating material, the effect of the structure is more remarkable.

2. The waterproof structure can be a composite protective layer, and the heat-insulating layer can be well waterproof and protected through the composite protective layer.

3. The waterproof structure also can comprise composite protective layer and waterproof coating, and the waterproof coating cladding is close to the region of tectonic layer in the circumferential surface of heat preservation to avoid causing the influence to the thermal insulation performance of outer wallboard, satisfy the higher project demand of building energy conservation requirement.

4. Carry out the corner cut setting through the outer corner to the heat preservation, the composite protective layer flows when doing benefit to the manufacturing, and can form with the cooperation of composite protective layer and strengthen the corner structure, protects the corner position of heat preservation better.

5. The utility model also provides an external wall panel connection structure through outside-in sets gradually first sealing material, backing material and cavity in first gap, sets up second sealing material in the second gap, can prevent effectively that steam from invading the external wall panel.

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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an external wall panel according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a forming cage in an external wall panel according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an outer corner of an insulating layer in an external wall panel according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connecting member in an external wall panel according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an external wall panel according to a second embodiment of the present invention;

fig. 6 shows a schematic structural diagram of an external wall panel provided by the third embodiment of the present invention;

fig. 7 shows a schematic structural diagram of an external wall panel provided by the fourth embodiment of the present invention;

fig. 8 shows a schematic structural diagram of an external wall panel provided in the fifth embodiment of the present invention;

fig. 9 is a schematic structural diagram of an external wall panel according to a sixth embodiment of the present invention;

fig. 10 is a schematic structural diagram of an external wall panel according to a seventh embodiment of the present invention;

fig. 11 is a schematic view illustrating an external wall panel connection structure when the external wall panels according to an eighth embodiment of the present invention are initially spliced;

fig. 12 is a schematic view illustrating an external wall panel connection structure when the external wall panels according to an eighth embodiment of the present invention are spliced;

fig. 13 is a schematic view illustrating an external wall panel connection structure according to a ninth embodiment of the present invention;

fig. 14 is a schematic view illustrating an external wall panel connection structure according to a tenth embodiment of the present invention;

fig. 15 is a schematic view illustrating an external wall panel connection structure according to an eleventh embodiment of the present invention;

fig. 16 is a schematic view illustrating an external wall panel connection structure during initial splicing according to a twelfth embodiment of the present invention;

fig. 17 shows a schematic view of an external wall panel connection structure when the external wall panel provided by the twelfth embodiment of the present invention is spliced.

Description of reference numerals:

10. a build-up layer; 11. a first prefabricated panel; 12. a second prefabricated panel; 13. forming a cage; 131. transversely distributing reinforcing steel bars; 132. vertically distributing reinforcing steel bars; 133. horizontally stretching a rib; 20. a heat-insulating layer; 30. a waterproof structure; 31. compounding a protective layer; 311. a first waterproof protective layer; 312. a reinforcing layer; 313. a second waterproof protective layer; 32. a water-resistant coating; 33. reinforcing the corner structure; 34. a corner protector; 40. a connecting member; 41. a tip; 411. a large plate; 412. a small disc; 413. a screw; 42. a rod body; 43. a first barb; 44. a second barb; 100. an external wall panel; 101. a first slit; 102. a second slit; 110. a first sealing material; 120. a backing material; 130. a cavity; 140. a second sealing material.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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 efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example one

The present embodiment provides an exterior wall panel, as shown in fig. 1, which includes a structural layer 10, an insulation layer 20, and a waterproof structure 30. The insulating layer 20 is disposed on one side of the structural layer 10, and the waterproof structure 30 is covered on a surface of the insulating layer 20 opposite to the structural layer 10 and a circumferential surface of the insulating layer 20.

It is understood that, when the waterproof structure 30 is not provided, both the surface of the insulating layer 20 on the side facing away from the structural layer 10 and the circumferential surface of the insulating layer 20 are exposed to the outside. After the waterproof structure 30 is arranged to cover the exposed surface of the structural layer 10, water vapor can be effectively prevented from entering the heat-insulating layer 20 through the surface, and therefore the heat-insulating performance of the heat-insulating layer 20 can be prevented from being reduced.

The arrangement of the external wall panel will be further described with reference to fig. 1 to 4.

As for the construction layer 10, as shown in fig. 1, it includes a first prefabricated panel 11, a second prefabricated panel 12, and a molding cage 13. The first prefabricated plate 11 and the second prefabricated plate 12 are arranged in parallel at intervals, and a cavity layer is formed between the first prefabricated plate 11 and the second prefabricated plate 12; the forming cage 13 is used to connect the first prefabricated panel 11 and the second prefabricated panel 12. And after concrete is poured into the cavity layer, an integrated wall body can be formed. In this embodiment, the first precast slab 11 and the insulating layer 20 are attached.

Further, the first and second prefabricated panels 11 and 12 are each made of concrete. Preferably, the concrete used for manufacturing the first prefabricated panel 11 and the second prefabricated panel 12 has a strength grade of not less than C30, and the maximum particle size of coarse aggregate used for the concrete is not more than 20 mm. Further, the first prefabricated panel 11 and the second prefabricated panel 12 have a thickness of not less than 50mm, and the hollow space layer has a thickness of not less than 100 mm.

The shaped cage 13 is made of steel bars, which, with reference to fig. 1 and 2, comprise interconnected transverse distribution bars 131, vertical distribution bars 132 and horizontal tie bars 133. In the orientation shown in fig. 1, the transversely distributed reinforcing bars 131 are arranged in the left-right direction of the structural layer 10, the vertically distributed reinforcing bars 132 are arranged in the direction perpendicular to the paper, and the horizontally stretched reinforcing bars 133 are arranged in the thickness direction of the structural layer 10.

Preferably, the diameters of the transverse distribution steel bars 131 and the vertical distribution steel bars 132 are not less than 8mm, the diameters of the horizontal tie bars 133 are not less than 6mm, the distance between the transverse distribution steel bars 131 is 150mm-200mm, the distance between the vertical distribution steel bars 132 is 150mm-200mm, and the distance between the horizontal tie bars 133 is 400mm-600 mm.

For the insulation layer 20, it is made of class a insulation material. Specifically, the A-grade heat-insulating material can be rock wool (including common rock wool, mesh reinforced rock wool and reinforced vertical-wire rock wool), foam concrete, foam glass, foam ceramic, a vacuum heat-insulating plate, an aerogel heat-insulating felt or a non-combustible polystyrene board, and the like, the combustion performance grade of the materials is A grade, and the volume water absorption rate is not more than 10%. When the insulating layer 20 is made of these materials, the tensile strength in the direction perpendicular to the insulating layer 20 is not lower than 80 kPa. Further, the thickness of the insulating layer 20 can be set to be 20mm-150mm according to the design requirements of building energy conservation in different regions.

As for the waterproof structure 30, as shown in fig. 3, the waterproof structure 30 in the present embodiment is provided as a composite protective layer 31 including a first waterproof protective layer 311, a reinforcing layer 312, and a second waterproof protective layer 313 which are provided in this order outside the heat insulating layer 20. With this arrangement, on the one hand, a double waterproof layer can be formed by the first waterproof protective layer 311 and the second waterproof protective layer 313, and the waterproof effect is better; on the other hand, the composite structure formed by the first waterproof protective layer 311, the reinforcing layer 312 and the second waterproof protective layer 313 can effectively protect the insulating layer 20, and can better prevent the insulating layer 20 from being damaged.

Preferably, the first waterproof layer 311 is one of an ultra-high performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite material layer and a high performance polymer mortar layer, and the materials do not contain large particle aggregates (the particle size is greater than 2.5mm), so that the waterproof layer has good waterproof performance, and can improve the cracking resistance, impact resistance and durability of the external wall panel and prolong the service life of the building.

As for several materials such as ultra-high performance concrete, glass fiber reinforced concrete, high-ductility cement-based composite material and high-performance polymer mortar, since they are all the prior art, the detailed description thereof is omitted here.

The reinforcing layer 312 may be provided as a mesh cloth, which may more closely connect the first waterproof protective layer 311 and the second waterproof protective layer 313, and may serve as crack resistance reinforcement for the composite protective layer 31.

Preferably, an alkali-resistant fiberglass mesh fabric may be used for the reinforcement layer 312. In the aspect of parameters, the unit area mass of the alkali-resistant fiberglass mesh is not less than 130g, the mesh size is 4mm-6mm, and the radial tensile strength and the latitudinal tensile strength are not less than 750N/50 mm.

Referring to the arrangement of the first waterproof protective layer 311, the second waterproof protective layer 313 may also be arranged as one of an ultra-high performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite material layer, and a high-performance polymer mortar layer. Of course, the material selection of the second waterproof protective layer 313 may be the same as that of the first waterproof protective layer 311, or may be different from that of the first waterproof protective layer 311.

Preferably, the thickness of the first waterproof protective layer 311 is 2mm to 4mm, the thickness of the second waterproof protective layer 313 is 1mm to 2mm, and the total thickness of the two waterproof protective layers is 4mm to 6 mm. As for the materials used for the first waterproof protective layer 311 and the second waterproof protective layer 313, the sand has the maximum grain diameter of not more than 0.5mm, the flow expansion degree of the mixture is not less than 300mm, the time loss of 1h is not more than 30mm, the compression strength after hardening is not less than 50MPa, the flexural strength is not less than 8MPa, and the drying shrinkage value is not more than 0.6 mm/m.

On the whole, to composite protective layer 31, it can pour with heat preservation 20 in step to need not the secondary and scribble composite protective layer 31, the preparation is simpler. In the pouring process, the composite protective layer 31 can be guaranteed to be poured compactly through knocking, vibrating or tamping. In addition, when the circumferential surface of the insulating layer 20 is fully covered by the composite protective layer 31, although the insulating performance of the exterior wall panel is influenced to some extent, the influence is small, and the project requirement of low building energy saving requirement can be met.

In addition, it is understood that the composite protective layer 31 may have a decorative function, and the composite protective layer 31, the structural layer 10 and the insulating layer 20 cooperate to actually form a structural, insulating and decorative integrated external wall panel.

Further, referring to fig. 1, a corner cut is formed at an outer corner (or referred to as an external corner) of the insulation layer 20. Accordingly, on the one hand, since the outer corners of the insulating layer 20 are partially cut away, it is convenient for the surface of the composite protective layer 31 on the side of the insulating layer 20 facing away from the structural layer 10 to flow toward the circumferential surface of the insulating layer 20 through the outer corners during production and manufacture, thereby better covering the structural layer 10; on the other hand, the composite protection layer 31 can be filled in the cut-off part of the heat insulation layer 20, so that a reinforced corner structure 33 is formed, the outer corner part of the heat insulation layer 20 is reinforced, the collision is prevented, and the later repair is reduced.

Exemplarily, when first waterproof layer 311 and second waterproof layer 313 adopt the mortar to make, because the mortar has high mobility and high strength, so make things convenient for workman's operation, can remove the steam-curing process from, the mould turnover is fast, and production efficiency is high, also provides convenient for the piece waterproof treatment when the later stage side fascia is installed simultaneously, and the corner roughness is high, and intensity is high, provides firm surface for gluing of building resistant time glue.

In this embodiment, the outer corners of the insulating layer 20 are chamfered to achieve corner cut. Illustratively, referring to fig. 1, the joint of the upper side and the left side of the insulating layer 20 is chamfered, and the chamfer distance between the upper side and the left side is 20mm-40 mm. The cut-out of the insulation 20 may then be filled by the composite protective layer 31 to form a right-angled triangular reinforcing corner structure 33.

Preferably, corner protectors 34 are also provided within the reinforced corner structures 33, as shown in FIG. 3, to further enhance protection at the outer corners of the insulation 20. In this embodiment, the corner protector 34 is a right-angle corner protector net made of PVC. Furthermore, a mesh cloth is adhered on the corner protection net, and the width of one side of the mesh cloth adhered with the corner protection net is not less than 50 mm.

In this embodiment, the thickness of the composite protective layer 31 is 5mm to 10mm, except for the reinforced corner structure 33. In actual manufacturing, in order to facilitate the laying of the corner protection net, when the pouring height of the composite protective layer 31 is about 5mm from the surface of the insulating layer 20, one side of the corner protection net is pressed into the protective layer, and then the pouring of the composite protective layer 31 is completed.

As shown in fig. 1, the external wall panel further includes a connecting member 40, and the connecting member 40 is disposed through the waterproof structure 30, the insulating layer 20 and the structural layer 10 at the same time to connect the waterproof structure 30, the insulating layer 20 and the structural layer 10 as a whole.

In this embodiment, the connecting member 40 includes a head 41 and a shaft 42. Wherein, body of rod 42 and end 41 are connected, by the one end that body of rod 42 is close to end 41 to the one end of keeping away from end 41, have set gradually first barb 43 and second barb 44 on the body of rod 42, and the contained angle (or be called the barb angle of first barb 43) between first barb 43 and the body of rod 42 axis is greater than the contained angle (or be called the barb angle of second barb 44) between second barb 44 and the body of rod 42 axis. Accordingly, the relatively small barb angle of second barbs 44 may provide a better piercing capability for connecting element 40; the barb angle of the first barbs 43 is relatively large, which may provide better resistance to pullout for the attachment element 40.

Preferably, the barb angle of the first barbs 43 is set at 30-45 and the barb angle of the second barbs 44 is set at 15-30.

In this embodiment, a needle-punching head is formed at an end of the rod 42 remote from the tip 41, through which the rod 42 penetrates the first prefabricated panel 11, and the tip 41 is fixed in the composite protective layer 31.

Further, referring to fig. 4, the head 41 includes a large disk 411, a small disk 412, and a screw 413. Wherein, the large disc 411 is fixed at one end of the rod body 42 and is arranged coaxially with the rod body 42; the small disc 412 is arranged on one side of the large disc 411, which is far away from the rod body 42, and is arranged at an interval with the large disc 411; a screw 413 is coupled to the large disc 411 through the small disc 412 to fix the small disc 412 to the large disc 411. When in use, the inner side of the large disc 411 is attached to the outer side of the heat-insulating layer 20 by combining with the figures 3 and 4, so that the end head 41 is stably pressed on the heat-insulating layer 20; when the reinforcing layer 312 is a mesh cloth, the small plate 412 is connected to the mesh cloth to fix the mesh cloth.

In general, referring to fig. 1, a plurality of coupling members 40 are spaced apart in the exterior wall panel to secure a coupling effect. More specifically, the large disc 411, the rod body 42, the first barb 43 and the second barb 44 are integrally arranged and made of high-strength plastic; the large disc 411 is a circular disc with the diameter not less than 60 mm; the diameter of the rod body 42 is not less than 8 mm; the small disc 412 is provided as a metal circular disc having a diameter of not less than 50 mm.

In addition, it should be noted that, when the insulating layer 20 is made of vacuum insulation panels, the connection members 40 should be arranged at the positions of the panel seams and avoid the cross seams, the panel seam interval is not more than 5mm, and the number of the peripheral connection members 40 per vacuum insulation panel is not less than 4. When selecting the heated board preparation heat preservation 20 of using other materials, connecting piece 40 can arrange in the heated board, and the quantity of arranging of per square metre is not less than 5, and the arrangement mode of heated board then sets for closely piecing together.

Example two

This embodiment provides an external wall panel having substantially the same structure as the external wall panel provided in the first embodiment except that the waterproof structure 30 is differently provided.

Specifically, referring to fig. 5, in the present embodiment, the waterproof structure 30 includes a composite protective layer 31 and a waterproof coating layer 32. The composite protection layer 31 covers the surface of the insulation layer 20 facing away from the structural layer 10 and the area of the circumferential surface of the insulation layer 20 away from the structural layer 10. The composite protective layer 31 includes a first waterproof protective layer 311, a reinforcing layer 312, and a second waterproof protective layer 313, which are disposed in this order outside the insulating layer 20. The waterproof coating 32 covers the circumferential surface of the insulating layer 20 in the region close to the structural layer 10.

In the present embodiment, the upper region of the circumferential surface of the insulating layer 20 is covered with the composite protective layer 31 and the lower region is covered with the waterproof coating layer 32 in the direction shown in fig. 5.

According to the arrangement, the heat-insulating layer 20 can be completely covered by the cooperation between the composite protective layer 31 and the waterproof coating 32, so that a good waterproof effect is ensured. On this basis, consider that composite protective layer 31 easily conducts heat and becomes the cold bridge, so can effectively shorten composite protective layer 31 along the length of 20 thickness directions of heat preservation through the setting of water proof coating 32 to fall the cold bridge absolutely, avoid causing the influence to the thermal insulation performance of externally-applied wall board, can satisfy the higher project demand of building energy conservation requirement.

In this embodiment, along the thickness direction of the insulating layer 20, the length of the waterproof coating 32 is set to be half of the thickness of the insulating layer 20, and is not less than 25 mm.

In this embodiment, the material configuration of the composite protection layer 31 is the same as that of the first embodiment, and is not described herein again. For the waterproof coating 32, it can be formed by painting a silicone waterproof emulsion on the surface of the heat-insulating layer 20.

EXAMPLE III

This embodiment provides an external wall panel that has substantially the same structure as the external wall panel provided in the second embodiment except for the shape of the reinforcing corner structure 33.

As shown in fig. 6, in the present embodiment, the composite protective layer 31 forms a reinforcement corner structure 33 of an oblique convex type when covering the outer corner portion of the insulation layer 20. For ease of understanding, the reinforced corner mechanism is described herein with reference to the orientation shown in FIG. 6: in the left-right direction, the reinforced corner structure 33 is arranged to protrude out of the insulating layer 20; the upper edge of the reinforced corner structure 33 is collinear with the upper edge of the composite protective layer 31 coated on the upper surface of the insulating layer 20, the left edge of the reinforced corner structure 33 is vertical to the upper edge, and the lower edge of the reinforced corner structure 33 is inclined downwards from left to right.

Example four

This embodiment provides an external wall panel that is substantially the same in structure as the external wall panel provided in the second embodiment, except that the shape of the reinforcing corner structure 33 is different.

As shown in fig. 7, in the present embodiment, the composite protective layer 31 forms a right-angled convex reinforcing corner structure 33 when covering the outer corner of the insulating layer 20. For ease of understanding, the reinforced corner mechanism is described herein with reference to the orientation shown in FIG. 7: in the left-right direction, the reinforcing corner structure 33 is arranged to protrude from the insulating layer 20; the upper edge of the reinforced corner structure 33 is collinear with the upper edge of the composite protective layer 31 coated on the upper surface of the insulating layer 20, the left side of the reinforced corner structure 33 is perpendicular to the upper edge, and the lower side of the reinforced corner structure 33 is perpendicular to the left side.

EXAMPLE five

This embodiment provides an external wall panel that is substantially the same in structure as the external wall panel provided in the second embodiment, except that the shape of the reinforcing corner structure 33 is different.

As shown in fig. 8, in the present embodiment, the composite protective layer 31 forms a bevel-type reinforced corner structure 33 when covering the outer corner portion of the insulation layer 20. At this point, the composite protective layer 31 is less filled at the outer corners of the insulating layer 20, and the reinforcing corner structures 33 are disposed substantially parallel to the hypotenuses at the outer corners of the insulating layer 20.

EXAMPLE six

This embodiment provides an exterior wall panel having substantially the same structure as the exterior wall panel provided in the second embodiment except that the waterproof coating 32 has a different length.

As shown in fig. 9, in the present embodiment, on the left side surface of the insulating layer 20, the composite protective layer 31 covers only the outer corners of the insulating layer 20 to protect the outer corners of the insulating layer 20, and the waterproof coating 32 covers the rest of the area.

EXAMPLE seven

This embodiment provides an external wall panel that has substantially the same structure as the external wall panel provided in the sixth embodiment except that the corner cuts at the outer corners of the insulating layer 20 are differently arranged.

In this embodiment, a right angle is cut at the outer corners of the insulation layer 20 as shown in fig. 10. At the same time, the composite protective layer 31 fills the cut-out of the insulation 20, forming a square reinforcing corner structure 33.

Preferably, when the outer corner portion of the insulation layer 20 is cut at right angles, the left and right lengths of the cut-out portions are set to 10mm to 40mm, and the thickness of the cut-out portions is set to 10mm to 30 mm.

Indeed, it can be understood from embodiments one to seven that: the outer corners of the insulating layer 20 can be subjected to corner cutting in different shapes; according to different filling conditions of the composite protective layer 31 on the outer corner of the insulating layer 20, reinforcing corner structures 33 with different shapes can be formed; different waterproof structures 30 can be formed according to different coverage conditions of the composite protective layer 31 and the waterproof coating 32 on the circumferential surface of the insulating layer 20. The above descriptions are not limited to the situations shown in the first to seventh embodiments.

Example eight

The present embodiment provides an external wall panel connection structure, as shown in fig. 11 and 12, the external wall panel connection structure includes at least two external wall panels 100 that are spliced with each other, the external wall panels 100 are the external wall panels as described above, a first gap 101 is formed between the heat insulating layers 20 of two adjacent external wall panels 100, and a second gap 102 is formed between the structural layers 10 of two adjacent external wall panels 100.

In this embodiment, the first sealing material 110, the backing material 120 and the cavity 130 are sequentially disposed in the first gap 101 from outside to inside, so as to achieve a waterproof effect; a second sealing material 140 is disposed in the second gap 102 to provide water resistance.

The first sealing material 110 is a building weather-resistant adhesive to effectively prevent water vapor from penetrating into the external wall panel 100. The backing material 120 is provided as a polyethylene foam rod for support. The pressure in the joint space can be ensured to be balanced with the outdoor air pressure by the cavity 130. The second sealing material 140 is made of concrete, and is poured into the cavity 130 of the structural layer 10 during manufacturing, so as to fill the second gap 102, and perform a waterproof function, so as to completely block water vapor outdoors.

Further, as shown in fig. 11, the external wall panel connection structure includes two adjacent external wall panels 100 connected up and down, and a first gap 101 and a second gap 102 are formed between the two external wall panels 100 and are both transversely disposed. In the present embodiment, the first slit 101 and the second slit 102 are horizontally aligned.

Furthermore, it should be noted that in other embodiments, when the structure of the construction layer 10 is changed to form a prefabricated solid shear wall, an EVE hollow slab shear wall or a longitudinal rib superposed shear wall, the above waterproof arrangement can also achieve a good waterproof effect.

Example nine

This embodiment provides an external wall panel connection structure, as shown in fig. 13, which is substantially the same as the external wall panel connection structure provided in the eighth embodiment except that the alignment arrangement of the first slit 101 and the second slit 102 is different.

In the present embodiment, the first slit 101 is provided higher than the second slit 102. Accordingly, referring to fig. 13, after the first slit 101 and the second slit 102 are sealed, a waterproof function can be performed by extending a permeation path, and further permeation of moisture can be prevented more effectively. Preferably, the position of the first slit 101 may be set within 100mm from the bottom of the first prefabricated panel 11 of the upper outer panel 100.

EXAMPLE ten

This embodiment provides an external wall panel connection structure, as shown in fig. 14, which is substantially the same as the external wall panel connection structure provided in the eighth embodiment except that the alignment arrangement of the first slits 101 and the second slits 102 is different.

In this embodiment, the first slit 101 is disposed lower than the second slit 102. Accordingly, referring to fig. 14, after the first gap 101 and the second gap 102 are sealed, a high-low gap structure may be formed, so that the moisture is more effectively prevented from further permeating by using the principle that the moisture freely flows vertically due to the gravity. Preferably, the first slit 101 may be provided within 100mm from the top of the first prefabricated panel 11 of the lower outer wall panel 100.

EXAMPLE eleven

This embodiment provides an exterior wall panel joining structure, as shown in fig. 15, which is substantially the same as the exterior wall panel joining structure provided in the eighth embodiment except that the shape of the reinforcing corner structure 33 is different in the exterior wall panel 100.

It will be appreciated that the seal arrangement shown in reference to the eighth embodiment is effective in preventing moisture ingress into the siding 100 despite the different shapes of the reinforcing comer structure 33.

Example twelve

The present embodiment provides an external wall panel connection structure, as shown in fig. 16 and 17, the external wall panel connection structure includes two adjacent external wall panels 100 connected left and right, a first gap 101 and a second gap 102 are formed between the two external wall panels 100, and the first gap 101 and the second gap 102 are horizontally aligned.

The first sealing material 110, the backing material 120 and the cavity 130 are sequentially arranged in the first gap 101 from outside to inside so as to play a role of water resistance; a second sealing material 140 is disposed in the second gap 102 to provide water resistance.

Preferably, the first sealing material 110 is provided as a building weather resistant adhesive to effectively prevent moisture from penetrating into the exterior wall panel 100. The backing material 120 is provided as a polyethylene foam rod for support. The pressure in the joint space can be kept balanced with the outdoor air pressure by the cavity 130. The second sealing material 140 is made of concrete, and is poured into the cavity 130 of the structural layer 10 during manufacturing, so as to fill the second gap 102, and perform a waterproof function, so as to completely block water vapor outdoors.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.

Claims (10)

1. An exterior wall panel, comprising:

a structural layer (10);

an insulating layer (20), the insulating layer (20) being disposed on one side of the structural layer (10);

the waterproof structure (30) covers the surface of the side, opposite to the structural layer (10), of the heat insulation layer (20) and the circumferential surface of the heat insulation layer (20).

2. External wall panel according to claim 1, wherein the waterproof structure (30) is provided as a composite protective layer (31), and the composite protective layer (31) comprises a first waterproof protective layer (311), a reinforcing layer (312) and a second waterproof protective layer (313) which are arranged in sequence outside the insulating layer (20).

3. The external wall panel according to claim 1, wherein the waterproof structure (30) comprises:

the composite protective layer (31) covers the surface of one side, back to the structural layer (10), of the heat insulation layer (20) and the area, away from the structural layer (10), of the circumferential surface of the heat insulation layer (20), and the composite protective layer (31) comprises a first waterproof protective layer (311), a reinforcing layer (312) and a second waterproof protective layer (313) which are sequentially arranged outside the heat insulation layer (20);

and the waterproof coating (32) covers the circumferential surface of the heat-insulating layer (20) in the area close to the structural layer (10).

4. The exterior wall panel according to claim 2 or 3, wherein the first waterproof layer (311) is provided as an ultra-high performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite layer or a high-performance polymer mortar layer; and/or

The reinforcing layer (312) is arranged as a mesh cloth; and/or

The second waterproof protective layer (313) is arranged to be an ultrahigh-performance concrete layer, a glass fiber reinforced concrete layer, a high-ductility cement-based composite material layer or a high-performance polymer mortar layer.

5. External wall panel according to claim 2 or 3, wherein the outer corners of the insulating layer (20) are chamfered to form a reinforced corner structure (33) in cooperation with the composite protective layer (31).

6. Exterior wall panel according to claim 5, wherein corner protectors (34) are provided in the reinforcing corner structures (33).

7. The exterior wall panel according to claim 1, further comprising:

a connector (40), the connector (40) passing through the waterproof structure (30), the insulation layer (20) and the structural layer (10) at the same time.

8. The exterior wall panel according to claim 7, wherein the connecting member (40) comprises:

a tip (41);

the body of rod (42), with end (41) is connected, by the body of rod (42) is close to the one end of end (41) is to keeping away from the one end of end (41), first barb (43) and second barb (44) have set gradually on the body of rod (42), just first barb (43) with contained angle between the body of rod (42) axis is greater than second barb (44) with contained angle between the body of rod (42) axis.

9. An exterior wall panel connection structure, comprising:

at least two external wall panels (100) which are spliced with each other, wherein the external wall panels (100) are the external wall panels as claimed in any one of claims 1 to 8, a first gap (101) is formed between the heat insulation layers (20) of two adjacent external wall panels (100), and a second gap (102) is formed between the structural layers (10) of two adjacent external wall panels (100);

a first sealing material (110), a backing material (120) and a cavity (130) are sequentially arranged in the first gap (101) from outside to inside, and a second sealing material (140) is arranged in the second gap (102).

10. The external wall panel connection structure according to claim 9, wherein the external wall panel connection structure comprises two adjacent external wall panels (100) connected up and down, the first gap (101) and the second gap (102) both transversely disposed are formed between the two external wall panels (100), and the first gap (101) and the second gap (102) are horizontally aligned or staggered up and down; and/or

The external wall panel connection structure comprises two adjacent left and right external wall panels (100) which are connected, wherein an equal vertical gap (101) is formed between the two external wall panels (100) and an equal vertical gap (102) is formed between the two external wall panels (100), and the first gap (101) and the second gap (102) are horizontally aligned.

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