A waterproof node structure of rear window frame of prefabricated concrete exterior wall and its installation method

Abstract

The present application relates to a waterproof node structure of a rear window frame of a prefabricated concrete exterior wall and an installation method thereof. The structure comprises a drainage slope, a fixed node, a water retaining ridge, a first demoulding slope, a second demoulding slope, a drip groove and a first installation groove. The structure solves the problem of poor waterproof effect of the prefabricated components of the rear window frame and achieves the technical effect of easy demoulding of the prefabricated components and multi-layer waterproofing.

Description

Technical Field

[0001] The invention relates to the technical field of rear window frames, and in particular to a waterproof node structure of a rear window frame of a precast concrete exterior wall and an installation method thereof. Background Art

[0002] Windows are important channels connecting the exterior and interior of a building and important measures for lighting, ventilation and ventilation. If the window structure and waterproof edge finishing process are not handled well, it will often cause the leaking rainwater to spread along the inside of the window to the entire window area, causing the interior decoration of the wall around the window to become spotted, moldy, black, or even fall off. If the window is in the above condition for a long time, other structures under the window (such as wooden floors) will also be corroded, reducing the service life of the building.

[0003] In order to solve the waterproof problem of window structures, there are two conventional construction methods in the relevant technology, namely, the pre-embedded aluminum alloy window frame method and the post-installation method of aluminum alloy windows and plastic steel windows in prefabricated components.

[0004] For the embedded aluminum alloy window frame method, when the prefabricated components with doors and windows are processed and cast in the component factory, the window frame is cast together with the concrete to form a whole. Its advantage is that the window frame and the prefabricated components are tightly connected, with basically no gaps, and rainwater is not easy to leak. Its disadvantage is that when the amount of rainwater is large, the rainwater is not easy to drain out, causing the rainwater to accumulate between the window frame and the prefabricated components, and then the rainwater leaks into the window frame; in addition, there is no waterproof structure or waterproof measure inside the window frame. After the rainwater leaks into the inside of the window frame, the rainwater directly contacts the decorative surface inside the window frame, causing spots, mold, corrosion and shedding.

[0005] For the post-installation method of aluminum alloy windows and plastic steel windows in prefabricated components, prefabricated components with window openings and no window frames, prefabricated components with window openings and pre-buried window openings with frames are processed in the component factory. After the components are installed on site, the windows are then post-installed, and waterproof sealants are set between the windows and components as a waterproof measure. The advantage is that different window frame types can be selected according to different needs. The disadvantage is that the waterproof sealant is easily oxidized and aged when exposed to the natural environment for a long time, such as sunlight and weathering, which leads to cracking and loss of waterproof effect.

[0006] Specifically, for the installation of window frames behind windows, the nodes are installed at the insulation layer according to the requirements of "Assembled Concrete and Architecture - 200 Questions on Architectural Design and Integrated Design". Figure 6-7 0 as an example, the upper and lower positions of the window openings did not take into account structural waterproofing measures, which increased the probability of rainwater infiltration.

[0007] For non-sandwich insulation exterior walls, internal insulation measures are required. If the internal insulation layer is a 20mm thick EPS (XPS) insulation board (extruded polystyrene insulation board), no consideration is given to how to finish the EPS (XPS) insulation board, resulting in leaked rainwater penetrating into the wall under the window along the gap between the internal insulation on the inside of the window frame and the prefabricated wall, causing problems such as mottled, moldy, and falling off on the walls around the indoor windows. This will cause long-term damage to the indoor floor (such as wooden floors and ceramic tiles), destroy the indoor decoration structure, and long-term mold will harm the health of the residents.

[0008] For the design of prefabricated concrete residential buildings, the example of the design of prefabricated concrete residential buildings (shear wall structure) in 15J939-1 of the National Building Standard Design Atlas is used as an example. In this node, the upper part of the window is provided with an eagle's mouth drip with a small inward slope. However, this node structure is difficult to achieve in the component processing link. The main reasons include: cracking during demoulding; easy damage and inability to repair during transportation, hoisting, and correction; small slope, in the case of heavy rain, rainwater will form backflow, and leak inward along the upper part of the window, and overflow to the neutral silicone weatherproof sealant position on the upper part of the window. If the sealant is weathered and corroded, the rainwater will leak into the room; in addition, in the prefabricated component structure on the outside of the window, there is only a slight slope on the outside and a horizontal waterproof method on the inside. The window frame is installed in the sandwich insulation position, and the outer slope range is narrow, which causes the window frame to be very close to the outer side of the exterior wall, making the waterproof path short, and a large amount of rainwater directly contacts the window glass, resulting in poor waterproof effect.

[0009] Currently, no effective solution has been proposed for the problem of poor waterproofing effect of rear window frame prefabricated components in the related art. Summary of the invention

[0010] The purpose of the present invention is to provide a prefabricated concrete exterior wall rear window frame waterproof node structure and an installation method thereof in view of the deficiencies in the prior art, so as to at least solve the problem of poor waterproof effect of the rear window frame prefabricated components in the related art.

[0011] To achieve the above object, the technical solution adopted by the present invention is:

[0012] A first aspect of the present invention provides a precast concrete exterior wall rear window frame waterproof node structure, comprising an upper node structure, a lower node structure, a left node structure and a right node structure, wherein the upper node structure is connected to the lower node structure through the left node structure and the right node structure; and further comprising:

[0013] A drainage slope, wherein the drainage slope is arranged on the upper surface of the lower node structure, and the drainage slope is inclined downward from the rear end of the drainage slope to the front end of the drainage slope;

[0014] A fixed node, the fixed node is arranged on the upper surface of the lower node structure, the front end of the fixed node is connected to the rear end of the drainage slope, and the front end of the fixed node is located on the upper side of the rear end of the drainage slope;

[0015] A water retaining ridge, the water retaining ridge being arranged on the upper surface of the lower node structure, the front end of the water retaining ridge being connected to the rear end of the fixed node, and the front end of the water retaining ridge being located on the upper side of the rear end of the fixed node;

[0016] a first demoulding slope, wherein the front end of the first demoulding slope is connected to the rear end of the drainage slope, the rear end of the first demoulding slope is connected to the front end of the fixed node, and the first demoulding slope is inclined downward from the rear end of the first demoulding slope to the front end of the first demoulding slope;

[0017] A second demoulding slope, wherein the front end of the second demoulding slope is connected to the rear end of the fixed node, the rear end of the second demoulding slope is connected to the front end of the water retaining anti-ridge, and the second demoulding slope is inclined downward from the rear end of the second demoulding slope to the front end of the second demoulding slope;

[0018] A drip groove, which is arranged on the lower surface of the upper node structure and is located at the upper part of the drainage slope;

[0019] A first mounting groove is arranged on the upper surface of the lower node structure, a front end of the first mounting groove is connected to a rear end of the water retaining ridge, and a front end of the first mounting groove is located at a lower side of the rear end of the water retaining ridge.

[0020] In some of the embodiments, the drip groove is also arranged on the lower surface of the lower node structure.

[0021] In some of the embodiments, it also includes:

[0022] A third demoulding slope, wherein the third demoulding slope is arranged on the upper surface of the upper node structure, and the third demoulding slope is inclined downward from the rear end of the third demoulding slope to the front end of the third demoulding slope; and / or

[0023] A fourth demoulding slope is provided on the lower surface of the lower node structure, and the fourth demoulding slope is inclined upward from the rear end of the fourth demoulding slope to the front end of the third demoulding slope.

[0024] In some of the embodiments, it also includes:

[0025] a first interface layer, the first interface layer being fixedly disposed in the first mounting groove;

[0026] a first thermal insulation layer, wherein the first thermal insulation layer covers an upper surface of the first interface layer;

[0027] A first finishing layer, wherein the first finishing layer covers an upper surface of the first thermal insulation layer and an upper surface of the water retaining ridge.

[0028] In some of the embodiments, further comprising:

[0029] A first bonding layer is provided between the first thermal insulation layer and the first finishing layer.

[0030] In some of the embodiments, it also includes:

[0031] A gap filling layer, the gap filling layer covers the upper surface of the fixed node of the lower node structure, the surface of the upper node structure corresponding to the fixed node, the surface of the left node structure corresponding to the fixed node, and the surface of the right node structure corresponding to the fixed node.

[0032] In some of the embodiments, it also includes:

[0033] A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

[0034] In some of the embodiments, it also includes:

[0035] a second interface layer, the second interface layer being fixedly disposed in the second mounting groove;

[0036] a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer;

[0037] A second finishing layer, wherein the second finishing layer covers a lower surface of the second bonding layer.

[0038] In some of the embodiments, it also includes:

[0039] A second bonding layer, wherein the second bonding layer is arranged between the second thermal insulation layer and the second finishing layer.

[0040] In some of the embodiments, the upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure; and / or

[0041] The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

[0042] A second aspect of the present invention provides a method for installing a waterproof node structure of a rear window frame of a precast concrete exterior wall, comprising:

[0043] Align the rear window frame with the fixed node of the lower node structure so that the rear window frame is located between the drainage slope and the water retaining ridge;

[0044] A gap filling layer of 5 mm to 25 mm is provided between the rear window frame and the fixed node, between the rear window frame and the upper node structure, between the rear window frame and the left node structure, and between the rear window frame and the right node structure;

[0045] A first interface layer of 3 mm to 12 mm, a first thermal insulation layer of 0 mm to 40 mm, a first bonding layer of 10 mm to 25 mm and a first finishing layer of 15 mm to 25 mm are sequentially arranged in the first installation groove of the lower node structure.

[0046] In some of the embodiments, it also includes:

[0047] A first bonding layer with a thickness of 10 mm to 25 mm is provided between the first thermal insulation layer and the first finishing layer.

[0048] In some of the embodiments, it also includes:

[0049] A second interface layer of 3 mm to 12 mm, a second thermal insulation layer of 0 mm to 40 mm, and a second finishing layer of 9 mm to 30 mm are sequentially arranged in the second installation groove of the upper node structure.

[0050] In some of the embodiments, it also includes:

[0051] A second bonding layer with a thickness of 3 mm to 30 mm is arranged between the second thermal insulation layer and the second finishing layer.

[0052] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0053] Compared with the related art, the embodiment of the present application provides a waterproof node structure of a precast concrete exterior wall rear window frame and an installation method thereof, which structure includes a drainage slope, a fixed node, a water retaining ridge, a first demoulding slope, a second demoulding slope, a drip groove and a first installation groove; it solves the problem of poor waterproof effect of the precast components of the rear window frame, and achieves the technical effect of easy demoulding of the precast components and multi-layer waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0055] Figure 1It is a schematic diagram of a waterproof node structure of a rear window frame of a precast concrete exterior wall according to an embodiment of the present invention.

[0056] Figure 2 1 is a schematic longitudinal section diagram of a lower node structure according to an embodiment of the present invention (I).

[0057] Figure 3 1 is a schematic longitudinal section diagram of an upper node structure according to an embodiment of the present invention (I).

[0058] Figure 4 2 is a schematic longitudinal section diagram of a lower node structure according to an embodiment of the present invention.

[0059] Figure 5 3 is a schematic longitudinal section diagram of a lower node structure according to an embodiment of the present invention.

[0060] Figure 6 2 is a schematic longitudinal section diagram of an upper node structure according to an embodiment of the present invention.

[0061] Figure 7 3 is a schematic longitudinal section diagram of an upper node structure according to an embodiment of the present invention.

[0062] Figure 8 It is a schematic diagram of a precast concrete exterior wall rear window frame waterproof node structure after installation according to an embodiment of the present invention.

[0063] Fig. 9 3 is a schematic longitudinal section diagram of a lower node structure according to an embodiment of the present invention.

[0064] Fig.10 3 is a schematic longitudinal section diagram of an upper node structure according to an embodiment of the present invention.

[0065] The reference numerals are as follows: waterproof node structure 100, upper node structure 101, lower node structure 102, left node structure 103, right node structure 104, drainage slope 105, fixed node 106, water retaining anti-ridge 107, first demoulding slope 108, second demoulding slope 109, drip groove 110, first installation groove 111, third demoulding slope 112, fourth demoulding slope 113, second installation groove 114, gap filling layer 115, first interface layer 116, first thermal insulation layer 117, first finishing layer 118, first bonding layer 119, second interface layer 120, second thermal insulation layer 121, second finishing layer 122, second bonding layer 123;

[0066] Rear window frame 200. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0068] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0069] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0070] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0071] Example 1

[0072] This embodiment is an illustrative embodiment of the present invention. The precast concrete exterior wall rear window frame waterproof node structure of this embodiment is applied to an exterior wall bay window.

[0073] like Figure 1 As shown, a waterproof node structure of a precast concrete exterior wall rear window frame, the waterproof node structure 100 includes an upper node structure 101, a lower node structure 102, a left node structure 103 and a right node structure 104, the left and right ends of the upper node structure 101 are respectively connected to the upper end of the left node structure 103 and the upper end of the right node structure 104, and the left and right ends of the lower node structure 102 are respectively connected to the lower end of the left node structure 103 and the lower end of the right node structure 104.

[0074] like Figure 2 As shown, the waterproof node structure 100 also includes a drainage slope 105, a fixed node 106, a water retaining anti-ridge 107, a first demolding slope 108, a second demolding slope 109, a drip groove 110, a first installation groove 111 and a fourth demolding slope 113.

[0075] The drainage slope 105 is set at the front end of the upper surface of the lower node structure 102, and the drainage slope 105 is inclined downward from the rear end of the drainage slope 105 to the front end of the drainage slope 105, that is, the distance between the rear end of the drainage slope 105 and the horizontal plane is greater than the distance between the front end of the drainage slope 105 and the horizontal plane.

[0076] In some embodiments, the slope of the drainage slope 105 is 1 / 4 to 1 / 6, and the preferred slope of the drainage slope 105 is 1 / 5.

[0077] The fixed node 106 is arranged on the upper surface of the lower node structure 102, the front end of the fixed node 106 is connected to the rear end of the drainage slope 105, and the fixed node 106 is located on the upper side of the drainage slope 105, that is, the distance between the front end of the fixed node 106 and the horizontal plane is greater than the distance between the rear end of the drainage slope 105 and the horizontal plane.

[0078] In some of the embodiments, the vertical distance between the front end of the fixed node 106 and the rear end of the drainage slope 105 is 5 mm to 30 mm.

[0079] The vertical distance between the front end of the fixed node 106 and the rear end of the drainage slope 105 is preferably 10 mm.

[0080] Furthermore, the upper surface of the fixed node 106 is parallel to the horizontal plane.

[0081] In some of the embodiments, a horizontal distance between a front end of the fixed node 106 and a rear end of the fixed node 106 is 80 mm to 100 mm.

[0082] The horizontal distance between the front end of the fixed node 106 and the rear end of the fixed node 106 is preferably 90 mm.

[0083] The water retaining ridge 107 is arranged on the upper surface of the lower node 102, the front end of the water retaining ridge 107 is connected to the rear end of the fixed node 106, and the water retaining ridge 107 is located on the upper side of the fixed node 106, that is, the distance between the front end of the water retaining ridge 107 and the horizontal plane is greater than the distance between the rear end of the fixed node 106 and the horizontal plane.

[0084] In some of the embodiments, the vertical distance between the front end of the water retaining ridge 107 and the rear end of the fixed node 106 is 10 mm to 30 mm.

[0085] The vertical distance between the front end of the water retaining ridge 107 and the rear end of the fixed node 106 is preferably 15 mm to 25 mm.

[0086] In addition, the upper surface of the water retaining ridge 107 is parallel to the horizontal plane.

[0087] The first demoulding slope 108 is disposed on the upper surface of the lower node structure 102 , the front end of the first demoulding slope 108 is connected to the rear end of the drainage slope 105 , and the rear end of the first demoulding slope 108 is connected to the front end of the fixed node 106 .

[0088] In some embodiments, the slope of the first demoulding slope 108 is 5 / 3 to 5 / 1, and the slope of the first demoulding slope 108 is preferably 10 / 3.

[0089] The second demoulding slope 109 is arranged on the upper surface of the lower node structure 102 , the front end of the second demoulding slope 108 is connected to the rear end of the fixed node 106 , and the rear end of the second demoulding slope 109 is connected to the front end of the water retaining anti-ridge 107 .

[0090] In some embodiments, the slope of the second demoulding slope 109 is 2 / 1 to 4 / 1, and the slope of the second demoulding slope 109 is preferably 3 / 1.

[0091] The drip groove 110 is disposed on the lower surface of the lower node structure 102 and is located at the lower side of the drainage slope 105 .

[0092] In some of the embodiments, the drip groove 110 is in any shape such as a rectangle, a trapezoid, or an arc.

[0093] In this embodiment, the drip groove 110 is taken as a trapezoidal shape for illustration.

[0094] The drip groove 110 is a right-angled trapezoid, the upper side of which is shorter than the lower side, the right-angled side is the rear end of the drip groove 110 , and the hypotenuse is the front end of the drip groove 110 .

[0095] In addition, the height (depth, ie, the length of the right-angle side) of the drip groove 110 is less than the thickness of the steel bar protective layer of the waterproof node structure of the rear window frame of the precast concrete exterior wall.

[0096] In addition, the horizontal distance between the rear end of the drip groove 110 and the front end of the fixing node 106 is 20 mm to 50 mm.

[0097] In a preferred embodiment, the drip groove 110 has an upper side length of 12.5 mm to 15 mm, a lower side length of 15 mm to 25 mm, a height of 10 mm to 25 mm, and a slope of the hypotenuse of 4 / 1.

[0098] The first mounting groove 111 is arranged on the upper surface of the lower node structure 102, the front end of the first mounting groove 111 is connected to the rear end of the water retaining ridge 107, and the first mounting groove 111 is located on the lower side of the water retaining ridge 107, that is, the distance between the front end of the first mounting groove 111 and the horizontal plane is smaller than the distance between the rear end of the water retaining ridge 107 and the horizontal plane.

[0099] In some of the embodiments, the vertical distance between the front end of the first installation groove 111 and the rear end of the water retaining ridge 107 is 25 mm to 45 mm.

[0100] The vertical distance between the front end of the first installation groove 111 and the rear end of the water retaining ridge 107 is preferably 30 mm.

[0101] In addition, an upper surface of the first mounting groove 111 is parallel to a horizontal plane.

[0102] The fourth demolding slope 113 is arranged at the front end of the lower surface of the lower node structure 102, and the fourth demolding slope 113 is inclined upward from the rear end of the fourth demolding slope 113 to the front end of the fourth demolding slope 113, that is, the distance between the rear end of the fourth demolding slope 113 and the horizontal plane is smaller than the distance between the front end of the fourth demolding slope 113 and the horizontal plane.

[0103] In some embodiments, the fourth demoulding slope 113 has a slope of 1 / 30 to 1 / 20, and preferably has a slope of 1 / 25.

[0104] In this embodiment, the first demoulding slope 108, the second demoulding slope 109 and the fourth demoulding slope 113 in the lower node structure 102 facilitate demoulding of the precast concrete exterior wall rear window frame waterproof node structure during the demoulding process; the position and structure of the drip groove 110 prevent it from being damaged during demoulding, transportation and lifting.

[0105] like Figure 3 As shown, the waterproof joint structure 100 further includes a third demolding slope 112 and a second installation groove 114 .

[0106] The drip groove 110 is also arranged at the front end of the lower surface of the upper node structure 101 , and its shape and position are basically the same as those of the drip groove 110 located on the lower surface of the lower node structure 102 , which will not be described in detail here.

[0107] The third demolding slope 112 is arranged at the front end of the upper surface of the upper node structure 101, and the third demolding slope 112 is inclined downward from the rear end of the third demolding slope 112 to the front end of the third demolding slope 112, that is, the distance between the rear end of the third demolding slope 112 and the horizontal plane is smaller than the distance between the front end of the third demolding slope 112 and the horizontal plane.

[0108] In some embodiments, the slope of the third demoulding slope 112 is 1 / 30 to 1 / 20, and the preferred slope of the third demoulding slope 112 is 1 / 25.

[0109] The second mounting groove 114 is disposed on the lower surface of the upper node structure 101 and is located above the first mounting groove 111 .

[0110] In some of the embodiments, a vertical distance between a lower surface of the first mounting groove 111 and a lower surface of the upper node structure 101 is 20 mm to 35 mm.

[0111] The vertical distance between the lower surface of the first mounting groove 111 and the lower surface of the upper node structure 101 is preferably 25 mm.

[0112] In this embodiment, the third demoulding slope 112 in the upper node structure 101 facilitates demoulding of the waterproof node structure of the rear window frame of the precast concrete exterior wall during the demoulding process; the position and structure of the drip groove 110 prevent it from being damaged during demoulding, transportation and lifting.

[0113] like Figure 4 As shown, the waterproof joint structure 100 also includes a gap filling layer 115 , a first interface layer 116 , a first thermal insulation layer 117 and a first finishing layer 118 .

[0114] The gap filling layer 115 is disposed on the upper surface of the fixing node 106 and is used to fill the gap between the rear window frame and the fixing node 106 .

[0115] In some of the embodiments, the gap filling layer 115 is formed of micro-expanding cement mortar or a foaming agent.

[0116] In some embodiments, the thickness of the gap filling layer 115 (ie, the distance in the vertical direction) is 5 mm to 25 mm, preferably 8 mm to 10 mm.

[0117] The first interface layer 116 covers the upper surface of the first mounting groove 111 and is used to modify the surface of the first mounting groove 116 .

[0118] In some of the embodiments, the first interface layer 116 is formed of an interface agent or an interface mortar.

[0119] In some embodiments, the thickness (ie, the distance in the vertical direction) of the first interface layer 116 is 3 mm to 12 mm, and the preferred thickness is 5 mm.

[0120] The first thermal insulation layer 117 covers the upper surface of the first interface layer 116 , and the thickness (ie, the distance in the vertical direction) thereof is 0 mm to 40 mm.

[0121] Among them, the preferred thickness is 20 mm to 40 mm, and the more preferred thickness is 20 mm.

[0122] In some of the embodiments, the first insulation layer 117 is a composite EPS (XPS) insulation board bonded with gypsum and anchored.

[0123] The first finishing layer 118 covers the upper surface of the first bonding layer 119 and the upper surface of the water retaining ridge 107 , and the front end of the first finishing layer 118 may or may not be in contact with the rear window frame.

[0124] In some embodiments, the thickness of the first finishing layer 118 (ie, the distance in the vertical direction) is 15 mm to 25 mm, and the preferred thickness is 15 mm.

[0125] In some embodiments, the first finishing layer 118 is a marble surface layer.

[0126] In some of the embodiments, the first finishing layer 118 and the first thermal insulation layer 117 are fixed by expansion screws.

[0127] In some of the embodiments, Figure 5 As shown, the waterproof node structure 100 further includes a first bonding layer 119 , and the first thermal insulation layer 117 and the first finishing layer 118 are fixedly connected by the first bonding layer 119 .

[0128] The first bonding layer 119 covers between the first thermal insulation layer 117 and the first finishing layer 118 , and the upper surface of the first bonding layer 119 and the upper surface of the water retaining ridge 107 are located at the same horizontal plane.

[0129] In some embodiments, the thickness of the first bonding layer 119 (ie, the distance in the vertical direction) is 10 mm to 25 mm, and the preferred thickness is 10 mm.

[0130] In some of the embodiments, the first bonding layer 119 is a 1:3 dry-hard cement mortar bonding layer.

[0131] like Figure 6 As shown, the waterproof node structure 100 further includes a second interface layer 120 , a second thermal insulation layer 121 and a second finishing layer 122 .

[0132] The gap filling layer 115 covers the lower surface of the upper node structure 101 corresponding to the fixed node 106 , and is used to fill the gap between the rear window frame and the upper node structure 101 .

[0133] In addition, the gap-filling layer 115 also covers the inner surface of the left node structure 103 corresponding to the fixed node 106 , and covers the inner surface of the right node structure 104 corresponding to the fixed node 106 .

[0134] The second interface layer 120 covers the upper surface of the second mounting groove 114 and is used to modify the surface of the second mounting groove 114 .

[0135] In some embodiments, the second interface layer 120 is formed of an interface agent or an interface mortar.

[0136] In some embodiments, the thickness of the second interface layer 120 (ie, the distance in the vertical direction) is 3 mm to 5 mm, and the preferred thickness is 3 mm.

[0137] The second thermal insulation layer 121 covers the upper surface of the second interface layer 120 , and the thickness (ie, the distance in the vertical direction) thereof is 0 mm to 40 mm.

[0138] Among them, the preferred thickness is 20 mm to 40 mm, and the more preferred thickness is 20 mm.

[0139] In some of the embodiments, the second insulation layer 121 is a composite EPS (XPS) insulation board bonded with gypsum and anchored.

[0140] The second finishing layer 122 covers the upper surface of the second thermal insulation layer 121 , and the lower surface of the second finishing layer 122 and the lower surface of the upper node structure 101 are located at the same horizontal plane.

[0141] In some of the embodiments, the thickness of the second finishing layer 122 (ie, the distance in the vertical direction) is 9 mm to 30 mm.

[0142] Among them, the preferred thickness is 9 mm to 12 mm or 15 mm to 30 mm, and the more preferred thickness is 12 mm.

[0143] In some embodiments, the second finishing layer 122 is a gypsum layer. Alternatively, the second finishing layer 122 is a composite layer, including a base layer, a leveling layer, and a tile layer.

[0144] In some of the embodiments, the second thermal insulation layer 121 and the second finishing layer 122 are an integrated composite thermal insulation board, and the shape of the second thermal insulation board matches the shape of the second installation groove 114 .

[0145] In some of the embodiments, the second finishing layer 122 and the second thermal insulation layer 121 are fixed by expansion screws.

[0146] In some of the embodiments, Figure 7 As shown, the waterproof node structure 100 further includes a second bonding layer 123 , and the second thermal insulation layer 121 and the second finishing layer 122 are fixedly connected by the second bonding layer 123 .

[0147] The second bonding layer 123 covers between the second thermal insulation layer 121 and the second finishing layer 122 .

[0148] In some of the embodiments, the thickness of the second bonding layer 123 (ie, the distance in the vertical direction) is 3 mm to 30 mm.

[0149] Among them, the preferred thickness is 3 mm to 5 mm or 15 mm to 30 mm, and the more preferred thickness is 3 mm.

[0150] In some of the embodiments, the second bonding layer 123 is a 1:3 dry-hard cement mortar bonding layer.

[0151] The precast concrete exterior wall rear window frame waterproof node structure of the present invention can be applied to ordinary residences, commercial residences (such as apartments), commercial office buildings, shopping malls (such as shopping centers), etc., and different specifications (i.e. different thicknesses) of the first interface layer 116, the first insulation layer 117, the first finishing layer 118, the second interface layer 120, the second insulation layer 121, and the second finishing layer 122 are selected according to different application scenarios. In some application scenarios, different specifications (different thicknesses) of the first bonding layer 119 and / or the second bonding layer 123 are set according to the needs of the connection strength.

[0152] For example, in an ordinary residence, the thickness of the first interface layer 116 is 3mm to 12mm, the thickness of the first insulation layer 117 is 20mm to 40mm, the thickness of the first finishing layer 118 is 15mm to 25mm, the thickness of the second interface layer 120 is 3mm to 5mm, the thickness of the second insulation layer 121 is 20mm to 40mm, and the thickness of the second finishing layer 122 is 9mm to 12mm. In addition, the first bonding layer 119 is not a mandatory option. When the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 15mm; the second bonding layer 123 is not a mandatory option. When the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 3mm to 5mm.

[0153] In commercial office buildings, the thickness of the first interface layer 116 is 3mm to 12mm, the thickness of the first insulation layer 117 is 20mm to 40mm, the thickness of the first finishing layer 118 is 15mm to 25mm, the thickness of the second interface layer 120 is 3mm to 5mm, the thickness of the second insulation layer 121 is 20mm to 40mm, and the thickness of the second finishing layer 122 is 9mm to 12mm. In addition, the first bonding layer 119 is not a mandatory option. When the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 15mm; the second bonding layer 123 is not a mandatory option. When the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 3mm to 5mm.

[0154] In the factory building, the thickness of the first interface layer 116 is 3mm to 12mm, the thickness of the first insulation layer 117 is 0mm to 40mm, the thickness of the first finishing layer 118 is 10mm to 25mm, the thickness of the second interface layer 120 is 3mm to 5mm, the thickness of the second insulation layer 121 is 0mm to 40mm, and the thickness of the second finishing layer 122 is 15mm to 30mm. In addition, the first bonding layer 119 is not a mandatory option. When the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 25mm; the second bonding layer 123 is not a mandatory option. When the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 15mm to 30mm.

[0155] Through the waterproof node structure of the rear window frame of the precast concrete exterior wall of this embodiment, a layered anti-seepage structure is formed by utilizing drainage slopes, fixed nodes and water retaining ridges, thereby solving the problem of poor waterproofing effect of the precast components of the rear window frames; utilizing the first demoulding slope, the second demoulding slope, the third demoulding slope and the fourth demoulding slope, the problem of inconvenient demoulding of the precast components is solved; the reasonable design of the shape and position of the drip groove prevents the precast components from being damaged during demoulding, transportation and lifting.

[0156] Example 2

[0157] This embodiment is a specific installation method of Embodiment 1.

[0158] A method for installing a waterproof node structure of a rear window frame of a prefabricated concrete exterior wall, comprising:

[0159] Align the rear window frame 200 with the fixed node 106 of the lower node structure 102 so that the rear window frame 200 is located between the drainage slope 105 and the water retaining anti-ridge 107;

[0160] A gap filling layer 115 of 5 mm to 25 mm is provided between the rear window frame 200 and the fixed node 106, between the rear window frame 200 and the upper node structure 101, between the rear window frame 200 and the left node structure 103, and between the rear window frame 200 and the right node structure 104;

[0161] A first interface layer 116 with a diameter of 3 mm to 12 mm, a first thermal insulation layer 117 with a diameter of 0 mm to 40 mm, and a first finishing layer 118 with a diameter of 15 mm to 25 mm are sequentially arranged in the first installation groove 111 of the lower node structure 102;

[0162] A second interface layer 120 of 3 mm to 12 mm, a second thermal insulation layer 121 of 0 mm to 40 mm, and a second finishing layer 122 of 9 mm to 12 mm are sequentially arranged in the second installation groove 114 of the upper node structure 101 .

[0163] In some of the embodiments, a first bonding layer 119 with a thickness of 10 mm to 25 mm is further provided between the first thermal insulation layer 117 and the first finishing layer 118 .

[0164] In some of the embodiments, a second bonding layer 123 with a thickness of 3 mm to 30 mm is further provided between the second thermal insulation layer 121 and the second finishing layer 122 .

[0165] After installation, the rear window is as follows Figure 8 shown.

[0166] In addition, the outer side of the gap filling layer 115 (ie, the outdoor side of the rear window frame 200 ) is also covered with a waterproof sealing layer (not shown in the figure), which is specifically a neutral silicone weather-resistant sealant.

[0167] Among them, the rear window frame 200 is connected and fixed to the upper node structure 101, the lower node structure 102, the left node structure 103, and the right node structure 104 by expansion screws, and there is no need to pre-embed a 40mm*20mm*2mm hot-dip galvanized steel window sub-frame and hot-dip galvanized iron sheets or reinforcing claws.

[0168] In addition, the "window frame eating" of the first facing layer 118 is not greater than 20 mm. "Window frame eating" refers to the vertical distance between the front end of the first facing layer 118 and the bottom window frame of the rear window frame 200. "Window frame eating" not greater than 20 mm does not affect the opening and closing of the window sash installed in the rear window frame 200. Among them, "window frame eating" refers to the decoration / decoration (such as insulation board) on the inside of the window eating the window frame.

[0169] Example 3

[0170] This embodiment is a variation of the first embodiment. The waterproof node structure of the rear window frame of the precast concrete exterior wall in this embodiment is applied to the exterior wall flat window.

[0171] like Fig. 9 As shown, the lower node structure 102 of this embodiment is different from the lower node structure 102 of Example 1 in that the drip groove 110, the first installation groove 111 and the fourth demolding slope 113 are not provided, and the remaining structure is basically the same as the lower node structure 102 of Example 1.

[0172] like Fig.10 As shown, the upper node structure 101 of this embodiment is different from the upper node structure 101 of Example 1 in that the third demoulding slope 112 and the second installation groove 114 are not provided, and the remaining structure is basically the same as the upper node structure 101 of Example 1.

[0173] The installation method of this embodiment is as follows:

[0174] Align the rear window frame 200 with the fixed node 106 of the lower node structure 102 so that the rear window frame 200 is located between the drainage slope 105 and the water retaining anti-ridge 107;

[0175] A gap filling layer 115 with a thickness of 5 mm to 25 mm is arranged between the rear window frame 200 and the fixed node 106 , between the rear window frame 200 and the upper node structure 101 , between the rear window frame 200 and the left node structure 103 , and between the rear window frame 200 and the right node structure 104 .

[0176] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0177] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A waterproof node structure of a rear window frame of a precast concrete exterior wall, comprising an upper node structure, a lower node structure, a left node structure and a right node structure, wherein the upper node structure is connected to the lower node structure through the left node structure and the right node structure, and characterized in that: Also includes: A drainage slope, wherein the drainage slope is arranged on the upper surface of the lower node structure, and the drainage slope is inclined downward from the rear end of the drainage slope to the front end of the drainage slope, wherein the slope of the drainage slope is 1 / 4 to 1 / 6; A fixed node, the fixed node is arranged on the upper surface of the lower node structure, the front end of the fixed node is connected to the rear end of the drainage slope, and the front end of the fixed node is located on the upper side of the rear end of the drainage slope; A water retaining ridge, the water retaining ridge being arranged on the upper surface of the lower node structure, the front end of the water retaining ridge being connected to the rear end of the fixed node, and the front end of the water retaining ridge being located on the upper side of the rear end of the fixed node; a first demoulding slope, wherein the front end of the first demoulding slope is connected to the rear end of the drainage slope, the rear end of the first demoulding slope is connected to the front end of the fixed node, and the first demoulding slope is inclined downward from the rear end of the first demoulding slope to the front end of the first demoulding slope; A second demoulding slope, wherein the front end of the second demoulding slope is connected to the rear end of the fixed node, the rear end of the second demoulding slope is connected to the front end of the water retaining anti-ridge, and the second demoulding slope is inclined downward from the rear end of the second demoulding slope to the front end of the second demoulding slope; A drip groove, which is arranged on the lower surface of the upper node structure and is located at the upper part of the drainage slope; A first mounting groove is arranged on the upper surface of the lower node structure, a front end of the first mounting groove is connected to a rear end of the water retaining ridge, and a front end of the first mounting groove is located at a lower side of the rear end of the water retaining ridge.

2. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 1 is characterized in that: The drip groove is also arranged on the lower surface of the lower node structure.

3. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 1 or 2, characterized in that: Also includes: A third demoulding slope is provided on the upper surface of the upper node structure, and the third demoulding slope is inclined downward from the rear end of the third demoulding slope to the front end of the third demoulding slope.

4. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 1 or 2, characterized in that: Also includes: A fourth demoulding slope is provided on the lower surface of the lower node structure, and the fourth demoulding slope is inclined upward from the rear end of the fourth demoulding slope to the front end of the fourth demoulding slope.

5. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3 is characterized in that: Also includes: A fourth demoulding slope is provided on the lower surface of the lower node structure, and the fourth demoulding slope is inclined upward from the rear end of the fourth demoulding slope to the front end of the fourth demoulding slope.

6. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to any one of claims 1 to 2 and 5, characterized in that: Also includes: a first interface layer, the first interface layer being fixedly disposed in the first mounting groove; a first thermal insulation layer, wherein the first thermal insulation layer covers an upper surface of the first interface layer; A first finishing layer, wherein the first finishing layer covers an upper surface of the first thermal insulation layer and an upper surface of the water retaining ridge.

7. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3 is characterized in that: Also includes: a first interface layer, the first interface layer being fixedly disposed in the first mounting groove; a first thermal insulation layer, wherein the first thermal insulation layer covers an upper surface of the first interface layer; A first finishing layer, wherein the first finishing layer covers an upper surface of the first thermal insulation layer and an upper surface of the water retaining ridge.

8. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 4 is characterized in that: Also includes: a first interface layer, the first interface layer being fixedly disposed in the first mounting groove; a first thermal insulation layer, wherein the first thermal insulation layer covers an upper surface of the first interface layer; A first finishing layer, wherein the first finishing layer covers an upper surface of the first thermal insulation layer and an upper surface of the water retaining ridge.

9. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to any one of claims 1 to 2, 5, 7 to 8, characterized in that: Also includes: A gap filling layer, the gap filling layer covers the upper surface of the fixed node of the lower node structure, the surface of the upper node structure corresponding to the fixed node, the surface of the left node structure corresponding to the fixed node, and the surface of the right node structure corresponding to the fixed node.

10. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3, characterized in that: Also includes: A gap filling layer, the gap filling layer covers the upper surface of the fixed node of the lower node structure, the surface of the upper node structure corresponding to the fixed node, the surface of the left node structure corresponding to the fixed node, and the surface of the right node structure corresponding to the fixed node.

11. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 4, characterized in that: Also includes: A gap filling layer, the gap filling layer covers the upper surface of the fixed node of the lower node structure, the surface of the upper node structure corresponding to the fixed node, the surface of the left node structure corresponding to the fixed node, and the surface of the right node structure corresponding to the fixed node.

12. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 6, characterized in that: Also includes: A gap filling layer, the gap filling layer covers the upper surface of the fixed node of the lower node structure, the surface of the upper node structure corresponding to the fixed node, the surface of the left node structure corresponding to the fixed node, and the surface of the right node structure corresponding to the fixed node.

13. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to any one of claims 1 to 2, 5, 7 to 8, 10 to 12, characterized in that: Also includes: A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

14. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 13, characterized in that: Also includes: a second interface layer, the second interface layer being fixedly disposed in the second mounting groove; a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer; A second finishing layer, wherein the second finishing layer covers a lower surface of the second interface layer.

15. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3, characterized in that: Also includes: A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

16. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 15, characterized in that: Also includes: a second interface layer, the second interface layer being fixedly disposed in the second mounting groove; a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer; A second finishing layer, wherein the second finishing layer covers a lower surface of the second interface layer.

17. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 4, characterized in that: Also includes: A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

18. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 17, characterized in that: Also includes: a second interface layer, the second interface layer being fixedly disposed in the second mounting groove; a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer; A second finishing layer, wherein the second finishing layer covers a lower surface of the second interface layer.

19. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 6, characterized in that: Also includes: A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

20. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 19, characterized in that: Also includes: a second interface layer, the second interface layer being fixedly disposed in the second mounting groove; a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer; A second finishing layer, wherein the second finishing layer covers a lower surface of the second interface layer.

21. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 9, characterized in that: Also includes: A second mounting groove is provided on the lower surface of the upper node structure, and a front end of the second mounting groove is located at the rear side of the rear end of the water retaining ridge.

22. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 21, characterized in that: Also includes: a second interface layer, the second interface layer being fixedly disposed in the second mounting groove; a second thermal insulation layer, the second thermal insulation layer covering a lower surface of the second interface layer; A second finishing layer, wherein the second finishing layer covers a lower surface of the second interface layer.

23. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to any one of claims 1 to 2, 5, 7 to 8, 10 to 12, 14 to 22, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

24. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

25. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 4, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

26. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 6, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

27. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 9, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

28. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 13, characterized in that: The upper surface of the upper node structure is inclined downward from the rear end of the upper node structure to the front end of the upper node structure.

29. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to any one of claims 1 to 2, 5, 7 to 8, 10 to 12, 14 to 22, 24 to 28, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

30. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 3, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

31. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 4, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

32. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 6, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

33. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 9, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

34. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 13, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

35. The waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 23, characterized in that: The lower surface of the lower node structure is inclined upward from the rear end of the lower node structure to the front end of the lower node structure.

36. A method for installing a waterproof node structure of a rear window frame on a precast concrete exterior wall, applied to the waterproof node structure of a rear window frame on a precast concrete exterior wall as claimed in any one of claims 1 to 35, characterized in that: include: Align the rear window frame with the fixed node of the lower node structure so that the rear window frame is located between the drainage slope and the water retaining ridge; A gap filling layer of 5 mm to 25 mm is provided between the rear window frame and the fixed node, between the rear window frame and the upper node structure, between the rear window frame and the left node structure, and between the rear window frame and the right node structure; A first interface layer of 3 mm to 12 mm, a first thermal insulation layer of 0 mm to 40 mm, and a first finishing layer of 15 mm to 25 mm are sequentially arranged in the first installation groove of the lower node structure.

37. The method for installing the waterproof node structure of the rear window frame of the precast concrete exterior wall according to claim 36, characterized in that: Also includes: A second interface layer of 3 mm to 12 mm, a second thermal insulation layer of 0 mm to 40 mm, and a second finishing layer of 9 mm to 30 mm are sequentially arranged in the second installation groove of the upper node structure.

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