CN212405462U

CN212405462U - Waterproof node structure of rear window frame of precast concrete outer wall

Info

Publication number: CN212405462U
Application number: CN202022255909.5U
Authority: CN
Inventors: 孙自萍; 王李果; 陈燚华; 杜洪林; 瞿华亮; 张成武
Original assignee: Shanghai Vanke Enterprise Co Ltd
Current assignee: Shanghai Vanke Enterprise Co Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-01-26
Anticipated expiration: 2030-10-12

Abstract

The application relates to a waterproof node structure of a rear window frame of a precast concrete outer wall, which comprises a drainage slope, a fixed node, a water retaining reverse ridge, a first demoulding slope, a second demoulding slope, a water dripping groove and a first mounting groove; the problem of rear window frame prefabricated component water-proof effects is not good is solved, prefabricated component be convenient for the drawing of patterns and the waterproof technological effect of multilayer have been realized.

Description

Waterproof node structure of rear window frame of precast concrete outer wall

Technical Field

The utility model relates to a rearmounted window frame technical field especially relates to a waterproof node structure of rearmounted window frame of precast concrete outer wall.

Background

The window is an important passage for connecting the outdoor and indoor of the building and an important measure for lighting, ventilation and ventilation, and if the structure of the window and the waterproof edge-closing process are not completely processed, the leaked rainwater often spreads around the whole window along the inner side of the window, so that the problems of mottling, mildewing, blackening and even falling off of the inner decoration of the wall surface around the indoor window are caused. If the window is in the above condition for a long time, other structures (such as wood floor) under the window will also corrode, reducing the service life of the building.

In order to solve the waterproof problem of the window structure, two conventional construction methods are adopted in the related art, namely an aluminum alloy window frame embedding method and an aluminum alloy window and plastic steel window after-installation method in a prefabricated part.

For the aluminum alloy window frame embedding method, when the prefabricated part with the door and the window is processed and poured in a component factory, the window frame and concrete are poured together to form a whole. Its advantages are close connection between window frame and prefabricated parts, basically no gap, and less leakage of rain water. The window frame has the disadvantages that under the condition of large rainwater amount, rainwater is not easy to be discharged outwards, so that the rainwater is accumulated between the window frame and the prefabricated part, and the rainwater leaks into the window frame; in addition, the interior of the window frame is also free of any waterproof structure or waterproof measure, and after rainwater leaks into the interior of the window frame, the rainwater directly contacts the decorative surface on the inner side of the window frame, so that mottling, mildewing and corrosion and falling-off occur.

For the post-installation method of aluminum alloy windows and plastic steel windows in prefabricated components, prefabricated components without window frames with window openings, prefabricated components with window openings and pre-embedded auxiliary frame of the window openings are respectively processed in component factories, the components are installed on site, then the windows are post-installed, and waterproof sealant is arranged between the windows and the components to serve as waterproof measures. The advantage is that different window frame types can be selected according to different requirements. The waterproof sealant has the defects that the waterproof sealant is easily oxidized and aged after being exposed in natural environment for a long time, such as sunshine and weathering, so that the waterproof sealant is cracked and loses the waterproof effect.

Specifically, for the installation node at the position of the window frame installed behind the window at the heat insulation layer, taking fig. 6-70 of "assembly concrete building-building design and integrated design 200 question" as an example for explanation, the upper opening and the lower opening of the window opening are not considered to be constructed with waterproof measures, so that the probability of rainwater infiltration is improved.

For a non-sandwich heat-insulation outer wall, an inner heat-insulation measure needs to be adopted, if the inner heat-insulation layer is an EPS (XPS) heat-insulation plate (an extruded polystyrene heat-insulation plate) with the thickness of 20mm, how to collect edges of the EPS (XPS) heat-insulation plate is not considered, rainwater leaked in permeates into a window lower wall along a gap between the inner heat-insulation plate and a prefabricated wall on the inner side of a window frame, the problems that the wall surface around an indoor window is mottled, mildewed, dropped and the like are caused, indoor floors (such as wood floors and ceramic tiles) can be damaged for a long time, indoor decoration structures are damaged, and the health of residents can be harmed due to mildew.

For the prefabricated concrete structure residential building design, the 15J939-1 of the national building Standard design atlas and the prefabricated concrete structure residential building design example (shear wall structure) are taken as examples for explanation, and in the node, the upper part of the window is provided with olecranon water drops with small inward gradient. However, such a node structure is difficult to implement in the component processing link, and the main reasons include: cracking during demolding; the cable is easy to damage and cannot be repaired in the transportation, hoisting and correction processes; the slope is small, under the heavy rain condition, rainwater can flow backward and leak inwards along the upper part of the window, and overflows to the neutral silicone weather-resistant sealant position on the upper part of the window, and if the sealant is weathered and corroded, the rainwater can leak indoors; in addition, in the prefabricated component structure in the outside of window, only the slope is looked for a little in the outside, and the waterproof way of inboard horizontally, window frame are installed in sandwich heat preservation position, and the slope scope is looked for in the outside narrower to cause the window frame to be very close from the outer side distance of outer wall, make waterproof route short, a large amount of rainwater direct contact window glass, lead to water-proof effects not good.

At present, no effective solution is provided for the problem of poor waterproof effect of a rear window frame prefabricated part in the related art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precast concrete outer wall rearmounted window frame waterproof node structure to not enough among the prior art to solve at least in the correlation technique at the not good problem of rearmounted window frame prefabricated component water-proof effects.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a waterproof node structure of a rear window frame of a precast concrete outer wall comprises an upper node structure, a lower node structure, a left node structure and a right node structure, wherein the upper node structure is connected with the lower node structure through the left node structure and the right node structure; further comprising:

the drainage slope is arranged on the upper surface of the lower node structure and inclines downwards from the rear end of the drainage slope to the front end of the drainage slope;

the fixed node is arranged on the upper surface of the lower node structure, the front end of the fixed node is connected with the rear end of the drainage slope, and the front end of the fixed node is positioned on the upper side of the rear end of the drainage slope;

the water retaining reverse ridge is arranged on the upper surface of the lower node structure, the front end of the water retaining reverse ridge is connected with the rear end of the fixed node, and the front end of the water retaining reverse ridge is positioned on the upper side of the rear end of the fixed node;

the front end of the first demolding slope is connected with the rear end of the drainage slope, the rear end of the first demolding slope is connected with the front end of the fixed node, and the first demolding slope is inclined downwards from the rear end of the first demolding slope to the front end of the first demolding slope;

the front end of the second demolding slope is connected with the rear end of the fixed node, the rear end of the second demolding slope is connected with the front end of the water retaining reverse ridge, and the second demolding slope is inclined downwards from the rear end of the second demolding slope to the front end of the second demolding slope;

the water dripping groove is arranged on the lower surface of the upper node structure and is positioned at the upper part of the drainage slope;

the first mounting groove is arranged on the upper surface of the lower node structure, the front end of the first mounting groove is connected with the rear end of the water retaining reverse ridge, and the front end of the first mounting groove is located on the lower side of the rear end of the water retaining reverse ridge.

In some of these embodiments, the drip trough is also disposed on a lower surface of the lower node structure.

In some of these embodiments, further comprising:

a third demolding slope disposed on an upper surface of the upper node structure, the third demolding slope sloping downward from a rear end of the third demolding slope to a front end of the third demolding slope; and/or

And the fourth demolding slope is arranged on the lower surface of the lower node structure, and the fourth demolding slope is inclined upwards from the rear end of the fourth demolding slope to the front end of the third demolding slope.

In some of these embodiments, further comprising:

the first interface layer is fixedly arranged in the first mounting groove;

a first thermal insulation layer covering an upper surface of the first interface layer;

the first veneer layer covers the upper surface of the first heat preservation layer and the upper surface of the water retaining reverse bank.

In some of these embodiments, further comprising;

a first bonding layer disposed between the first insulating layer and the first facing layer.

In some of these embodiments, further comprising:

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.

In some of these embodiments, further comprising:

the second mounting groove is formed in the lower surface of the upper node structure, and the front end of the second mounting groove is located on the rear side of the rear end of the water retaining reverse ridge.

In some of these embodiments, further comprising:

the second interface layer is fixedly arranged in the second mounting groove;

the second insulating layer covers the lower surface of the second interface layer;

a second facing layer covering a lower surface of the second bonding layer.

In some of these embodiments, further comprising:

a second bonding layer disposed between the second insulating layer and the second facing layer.

In some of these embodiments, the upper surface of the upper node structure slopes downward from the rear end of the upper node structure to the front end of the upper node structure; and/or

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.

In some of these embodiments, the first interface layer has a thickness of 3mm to 12 mm;

the thickness of the first heat-preservation layer is 0-40 mm;

the thickness of the first decorative layer is 15 mm-25 mm.

In some of these embodiments, the second interface layer has a thickness of 3mm to 12 mm;

the thickness of the second heat-insulating layer is 0-40 mm;

the thickness of the second decorative layer is 9 mm-30 mm.

In some of these embodiments, the gap filling layer has a thickness of 5mm to 25 mm.

In some of these embodiments, the first bonding layer has a thickness of 10mm to 25 mm.

In some of these embodiments, the second bonding layer has a thickness of 3mm to 30 mm.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

compared with the prior art, the waterproof node structure of the rear window frame of the precast concrete outer wall comprises a drainage slope, a fixed node, a water retaining reverse ridge, a first demoulding slope, a second demoulding slope, a water dripping groove and a first mounting groove; the problem of rear window frame prefabricated component water-proof effects is not good is solved, prefabricated component be convenient for the drawing of patterns and the waterproof technological effect of multilayer have been realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is according to the utility model discloses a waterproof node structure of precast concrete outer wall rearmounted window frame's schematic diagram.

Fig. 2 is a longitudinal sectional schematic view (a) of a lower node structure according to an embodiment of the present invention.

Fig. 3 is a longitudinal sectional view schematically (one) of an upper node structure according to an embodiment of the present invention.

Fig. 4 is a schematic longitudinal sectional view (ii) of a lower node structure according to an embodiment of the present invention.

Fig. 5 is a longitudinal sectional schematic view (iii) of a lower node structure according to an embodiment of the present invention.

Fig. 6 is a schematic longitudinal sectional view (ii) of an upper node structure according to an embodiment of the present invention.

Fig. 7 is a schematic longitudinal sectional view (iii) of an upper node structure according to an embodiment of the present invention.

Fig. 8 is a schematic diagram after the installation of precast concrete outer wall rearmounted window frame waterproof node structure according to the utility model discloses an embodiment.

Fig. 9 is a schematic longitudinal sectional view (iii) of a lower node structure according to an embodiment of the present invention.

Fig. 10 is a schematic longitudinal sectional view (iii) of an upper node structure according to an embodiment of the present invention.

Wherein the reference numerals are: the waterproof node structure 100, the upper node structure 101, the lower node structure 102, the left node structure 103, the right node structure 104, the drainage slope 105, the fixed node 106, the water retaining reverse bank 107, the first demoulding slope 108, the second demoulding slope 109, the drip 110, the first mounting groove 111, the third demoulding slope 112, the fourth demoulding slope 113, the second mounting groove 114, the gap filling layer 115, the first interface layer 116, the first heat preservation layer 117, the first finishing layer 118, the first bonding layer 119, the second interface layer 120, the second heat preservation layer 121, the second finishing layer 122 and the second bonding layer 123;

the rear window frame 200.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.

It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as referred to herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

Example 1

This embodiment does the utility model discloses an exemplary embodiment, the waterproof node structure of the rearmounted window frame of precast concrete outer wall of this embodiment is applied to the protruding window of outer wall.

As shown in fig. 1, a waterproof node structure of a rear window frame of a precast concrete exterior wall, where 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, where the left and right ends of the upper node structure 101 are connected to the upper end of the left node structure 103 and the upper end of the right node structure 104, respectively, and the left and right ends of the lower node structure 102 are connected to the lower end of the left node structure 103 and the lower end of the right node structure 104, respectively.

As shown in fig. 2, the waterproof node structure 100 further includes a drainage slope 105, a fixed node 106, a water blocking back sill 107, a first demolding slope 108, a second demolding slope 109, a drip groove 110, a first mounting groove 111, and a fourth demolding slope 113.

The drainage slope 105 is provided 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, i.e., 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.

In some of these embodiments, the slope of the drainage slope 105 is 1/4-1/6. Wherein the preferred slope of the drainage slope 105 is 1/5.

The fixed node 106 is disposed 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.

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

Wherein 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.

Further, the upper surface of the fixed node 106 is parallel to the horizontal plane.

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

Wherein 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.

The anti-bank 107 of manger plate sets up the upper surface at node 102 down, and the front end of the anti-bank 107 of manger plate is connected with the rear end of fixed node 106, and the anti-bank 107 of manger plate is located the upside of fixed node 106, and the distance between the front end of the anti-bank 107 of manger plate and the horizontal plane is greater than the distance between the rear end of fixed node 106 and the horizontal plane promptly.

In some embodiments, the vertical distance between the front end of the water blocking sill 107 and the rear end of the fixed node 106 is 10mm to 30 mm.

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

Further, the upper surface of the water blocking sill 107 is parallel to the horizontal plane.

A first demolding slope 108 is provided on the upper surface of the lower node structure 102, a front end of the first demolding slope 108 is connected to a rear end of the drainage slope 105, and a rear end of the first demolding slope 108 is connected to a front end of the fixed node 106.

In some of these embodiments, the slope of the first stripper ramp 108 is 5/3-5/1. Wherein the slope of the first stripper ramp 108 is preferably 10/3.

The second demolding slope 109 is disposed on the upper surface of the lower node structure 102, the front end of the second demolding slope 108 is connected to the rear end of the fixed node 106, and the rear end of the second demolding slope 109 is connected to the front end of the water blocking back sill 107.

In some of these embodiments, the secondary knockout ramp 109 has a slope of 2/1-4/1. Wherein the slope of the second ejection ramp 109 is preferably 3/1.

A drip channel 110 is provided on the lower surface of the lower node structure 102 and is located at the lower side of the drainage slope 105.

In some of these embodiments, the drip tray 110 is any one of rectangular, trapezoidal, arcuate, etc. in shape.

In the present embodiment, the drip trough 110 is illustrated as a trapezoid.

The drip 110 is a right trapezoid, the upper side of the right trapezoid is smaller than the lower side of the drip, the right-angle side is the rear end of the drip 110, and the oblique side is the front end of the drip 110.

In addition, the height (depth, i.e., length of the right-angle side) of the drip groove 110 is less than the thickness of the steel bar protection layer of the prefabricated concrete outer wall rear window frame waterproof node structure.

Further, the horizontal distance between the rear end of the drip groove 110 and the front end of the fixed node 106 is 20mm to 50 mm.

In a preferred embodiment, the drip 110 has an upper side of 12.5mm to 15mm, a lower side of 15mm to 25mm, a height of 10mm to 25mm, and a slope of the inclined side of 4/1.

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 with the rear end of the water retaining reverse sill 107, and the first mounting groove 111 is located on the lower side of the water retaining reverse sill 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 reverse sill 107 and the horizontal plane.

In some embodiments, the vertical distance between the front end of the first mounting groove 111 and the rear end of the water blocking sill 107 is 25mm to 45 mm.

The vertical distance between the front end of the first installation groove 111 and the rear end of the water blocking back threshold 107 is preferably 30 mm.

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

The fourth demolding slope 113 is disposed 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.

In some of these embodiments, the fourth stripper ramp 113 has a slope of 1/30-1/20. Wherein the preferred slope of the fourth stripper ramp 113 is 1/25.

In the embodiment, the first demolding slope 108, the second demolding slope 109 and the fourth demolding slope 113 in the lower node structure 102 facilitate demolding of the prefabricated concrete outer wall rear window frame waterproof node structure in a demolding process; the drip trough 110 is positioned and configured to prevent damage during demolding, transportation, and lifting.

As shown in fig. 3, the waterproof node construction 100 further includes a third demolding slope 112 and a second mounting groove 114.

The drip channel 110 is also disposed at the front end of the lower surface of the upper node structure 101, and the shape and position of the drip channel 110 are substantially identical to those of the drip channel 110 located at the lower surface of the lower node structure 102, which will not be described herein again.

A third demolding slope 112 is provided 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.

In some of these embodiments, the third stripper ramp 112 has a slope of 1/30-1/20. Wherein the preferred slope of the third stripper ramp 112 is 1/25.

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

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

Wherein, 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.

In the embodiment, the third demolding slope 112 in the upper node structure 101 facilitates demolding of the prefabricated concrete outer wall rear window frame waterproof node structure in a demolding process; the drip trough 110 is positioned and configured to prevent damage during demolding, transportation, and lifting.

As shown in fig. 4, the waterproof node construction 100 further includes a gap filling layer 115, a first interface layer 116, a first thermal insulation layer 117, and a first finishing layer 118.

The gap filling layer 115 covers an upper surface of the fixed node 106 for filling a gap between the rear window frame and the fixed node 106.

In some of these embodiments, the gap-filling layer 115 is a micro-expanded cement mortar forming or foaming agent forming.

In some of these embodiments, the gap filling layer 115 has a thickness (i.e., a distance in the vertical direction) of 5mm to 25 mm. Preferably, it is 8mm to 10 mm.

The first interface layer 116 covers the upper surface of the first mounting groove 111 for modifying the surface of the first mounting groove 116.

In some of these embodiments, the first interface layer 116 is formed of an interfacial agent or an interfacial mortar.

In some of these embodiments, the thickness (i.e., the distance in the vertical direction) of the first interface layer 116 is 3mm to 12 mm. The preferred thickness is 5 mm.

The first insulating layer 117 covers the upper surface of the first interface layer 116, and has a thickness (i.e., a distance in the vertical direction) of 0mm to 40 mm.

Among them, the thickness is preferably 20mm to 40mm, and more preferably 20 mm.

In some of these embodiments, the first insulation layer 117 is a bonded gypsum, anchor bolt secured composite eps (xps) insulation board.

The first finishing layer 118 covers the upper surface of the first bonding layer 119 and the upper surface of the water blocking sill 107, and the front end of the first finishing layer 118 may or may not contact the rear window frame.

In some of these embodiments, the first facing layer 118 has a thickness (i.e., a distance in the vertical direction) of 15mm to 25 mm. A preferred thickness is 15 mm.

In some of these embodiments, the first facing layer 118 is a marble facing layer.

In some of these embodiments, the first facing layer 118 is secured to the first insulating layer 117 by expansion screws.

In some embodiments, as shown in fig. 5, the waterproof node construction 100 further includes a first bonding layer 119, and the first insulating layer 117 is fixedly connected to the first facing layer 118 by the first bonding layer 119.

The first bonding layer 119 covers between the first thermal insulation layer 117 and the first finishing layer 118, and an upper surface of the first bonding layer 119 and an upper surface of the water blocking reversed ridge 107 are located on the same horizontal plane.

In some of these embodiments, the thickness (i.e., the distance in the perpendicular direction) of the first bonding layer 119 is 10mm to 25 mm. The preferred thickness is 10 mm.

In some of these embodiments, the first bonding layer 119 is 1: 3, combining the dry and hard cement mortar.

As shown in fig. 6, the waterproof node structure 100 further includes a second interface layer 120, a second insulation layer 121, and a second finishing layer 122.

The gap filling layer 115 covers a lower surface of the upper node structure 101 corresponding to the fixed node 106 for filling a gap between the rear window frame and the upper node structure 101.

In addition, the gap filling layer 115 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.

The second interface layer 120 covers the upper surface of the second mounting groove 114 for modifying the surface of the second mounting groove 114.

In some of these embodiments, the second interface layer 120 is formed of an interfacial agent or an interfacial mortar.

In some of these embodiments, the thickness (i.e., the distance in the vertical direction) of the second interface layer 120 is 3mm to 5 mm. The preferred thickness is 3 mm.

The second insulating layer 121 covers the upper surface of the second interface layer 120, and has a thickness (i.e., a distance in the vertical direction) of 0mm to 40 mm.

In some of these embodiments, the second insulation layer 121 is a bonded gypsum, anchor bolt-on composite EPS (XPS) insulation board.

The second finishing layer 122 covers the upper surface of the second insulating 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.

In some of these embodiments, the second facing layer 122 has a thickness (i.e., a distance in the vertical direction) of 9mm to 30 mm.

Among them, the thickness is preferably 9mm to 12mm or 15mm to 30mm, and more preferably 12 mm.

In some of these embodiments, the second facing layer 122 is a gypsum layer. Alternatively, the second facing layer 122 is a composite layer including a base layer, a leveling layer, and a tile layer.

In some embodiments, the second insulating layer 121 and the second finishing layer 122 are a one-piece composite insulation board, and the shape of the one-piece composite insulation board matches with the shape of the second mounting groove 114.

In some embodiments, the second facing layer 122 and the second insulating layer 121 are fixed by expansion screws.

In some embodiments, as shown in fig. 7, the waterproof node structure 100 further includes a second bonding layer 123, and the second insulating layer 121 and the second finishing layer 122 are fixedly connected by the second bonding layer 123.

The second bonding layer 123 covers between the second insulating layer 121 and the second finishing layer 122.

In some of these embodiments, the thickness (i.e., the distance in the vertical direction) of the second bonding layer 123 is 3mm to 30 mm.

Among them, the thickness is preferably 3mm to 5mm or 15mm to 30mm, and more preferably 3 mm.

In some of these embodiments, the second bonding layer 123 is 1: 3, combining the dry and hard cement mortar.

The utility model discloses a waterproof node structure of rearmounted window frame of precast concrete outer wall, it can use in ordinary house, commercial house (like the apartment), commercial office building, market (like shopping center) etc. selects the first interface layer 116, the first heat preservation 117, first finish coat 118, the second interface layer 120, the second heat preservation 121 and the second finish coat 122 of different specifications (select different thickness promptly) according to the application scene of difference. In some application scenarios, different specifications (different thicknesses) of the first bonding layer 119 and/or the second bonding layer 123 are provided as required for the bonding strength.

For example, in a typical house, the first interface layer 116 has a thickness of 3mm to 12mm, the first thermal insulation layer 117 has a thickness of 20mm to 40mm, the first finishing layer 118 has a thickness of 15mm to 25mm, the second interface layer 120 has a thickness of 3mm to 5mm, the second thermal insulation layer 121 has a thickness of 20mm to 40mm, and the second finishing layer 122 has a thickness of 9mm to 12 mm. Further, the first bonding layer 119 is an optional item, and in the case where the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 15 mm; the second bonding layer 123 is an optional option, and in the case where the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 3mm to 5 mm.

In a commercial office building, the thickness of the first interface layer 116 is 3mm to 12mm, the thickness of the first heat-insulating 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 heat-insulating layer 121 is 20mm to 40mm, and the thickness of the second finishing layer 122 is 9mm to 12 mm. Further, the first bonding layer 119 is an optional item, and in the case where the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 15 mm; the second bonding layer 123 is an optional option, and in the case where the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 3mm to 5 mm.

In a factory building, the thickness of the first interface layer 116 is 3mm to 12mm, the thickness of the first heat-insulating layer 117 is 0mm to 40mm, the thickness of the first facing layer 118 is 10mm to 25mm, the thickness of the second interface layer 120 is 3mm to 5mm, the thickness of the second heat-insulating layer 121 is 0mm to 40mm, and the thickness of the second facing layer 122 is 15mm to 30 mm. Further, the first bonding layer 119 is an optional item, and in the case where the first bonding layer 119 is selected, the thickness of the first bonding layer 119 is 10mm to 25 mm; the second bonding layer 123 is an optional option, and in the case where the second bonding layer 123 is selected, the thickness of the second bonding layer 123 is 15mm to 30 mm.

By the waterproof node structure of the rear window frame of the precast concrete outer wall, a layered water seepage prevention structure is formed by the drainage slope, the fixed nodes and the water retaining reverse ridges, so that the problem of poor waterproof effect of a prefabricated part of the rear window frame is solved; the problem that the prefabricated part is inconvenient to demold is solved by utilizing the first demolding slope, the second demolding slope, the third demolding slope and the fourth demolding slope; the reasonable design of the shape and the position of the drip groove avoids the prefabricated part from being damaged in the processes of demoulding, transportation and hoisting.

Example 2

This example is a specific mounting method of example 1.

A method for installing a waterproof node structure of a rear window frame of a precast concrete outer wall comprises the following steps:

the rear window frame 200 is arranged in alignment 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 sill 107;

gap filling layers 115 of 5 mm-25 mm are 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;

a first interface layer 116 with the thickness of 3 mm-12 mm, a first heat preservation layer 117 with the thickness of 0 mm-40 mm and a first decoration layer 118 with the thickness of 15 mm-25 mm are sequentially arranged in the first installation groove 111 of the lower node structure 102;

a second interface layer 120 with the thickness of 3 mm-12 mm, a second insulating layer 121 with the thickness of 0 mm-40 mm and a second decorative layer 122 with the thickness of 9 mm-12 mm are sequentially arranged in the second mounting groove 114 of the upper node structure 101.

In some of these embodiments, a first bonding layer 119 of 10mm to 25mm is also disposed between the first insulating layer 117 and the first facing layer 118.

In some of these embodiments, a second bonding layer 123 of 3mm to 30mm is further disposed between the second insulating layer 121 and the second finishing layer 122.

The rear window after installation is shown in fig. 8.

Further, a waterproof sealing layer (not shown) is further provided on the outside of the gap filling layer 115 (i.e., the outdoor side of the rear window frame 200), which is specifically a neutral silicone weather-resistant sealant.

The rear window frame 200, the upper node structure 101, the lower node structure 102, the left node structure 103 and the right node structure 104 are fixedly connected through expansion screws, and a hot-dip galvanized steel window subframe and a hot-dip galvanized iron sheet or a reinforcing claw piece which are 40mm by 20mm by 2mm do not need to be pre-buried.

Further, the "window cut" of the first facing layer 118 is no greater than 20 mm. "eat frame" means the vertical distance between the front end of the first facing layer 118 and the bottom window frame of the rear window frame 200. The 'eat frame' of not more than 20mm does not affect the opening and closing of the window sash installed in the rear window frame 200. Wherein, the window frame is the window frame for decoration/decoration (such as insulation board) at the inner side of the window.

Example 3

The embodiment is a modified embodiment of embodiment 1, and the precast concrete external wall rear window frame waterproof node structure of the embodiment is applied to an external wall flat window.

As shown in fig. 9, the lower node structure 102 of the present embodiment is different from the lower node structure 102 of embodiment 1 in that the drip groove 110, the first mounting groove 111, and the fourth knock-out slope 113 are not provided, and the remaining structure is substantially identical to the lower node structure 102 of embodiment 1.

As shown in fig. 10, the upper node structure 101 of the present embodiment is different from the upper node structure 101 of embodiment 1 in that the third knock out slope 112 and the second mounting groove 114 are not provided, and the remaining structure is substantially identical to the upper node structure 101 of embodiment 1.

The installation method of the present embodiment is as follows:

and 5 mm-25 mm gap filling layers 115 are 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.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a waterproof node structure of rearmounted window frame of precast concrete outer wall, includes node structure, lower node structure, left node structure and right node structure, it passes through to go up the node structure left side node structure right side node structure with node structure connects down, its characterized in that still includes:

2. The precast concrete outer wall rear window frame waterproof node construction of claim 1, wherein the drip groove is further provided at a lower surface of the lower node structure.

3. The precast concrete outer wall rear window frame waterproof node construction of claim 1, further comprising:

4. The precast concrete outer wall rear window frame waterproof node construction of claim 1, further comprising:

the first interface layer is fixedly arranged in the first mounting groove;

5. The precast concrete outer wall rear window frame waterproof node construction of claim 1, further comprising:

6. The precast concrete outer wall rear window frame waterproof node construction of claim 1, further comprising:

7. The precast concrete outer wall rear window frame waterproof node construction of claim 6, further comprising:

the second interface layer is fixedly arranged in the second mounting groove;

a second finishing layer covering a lower surface of the second interface layer.

8. The precast concrete exterior wall rear window frame waterproof node construction of claim 1, wherein an upper surface of the upper node structure is inclined downward from a rear end of the upper node structure to a front end of the upper node structure; and/or

9. The precast concrete outer wall rear window frame waterproof node structure as claimed in claim 4, wherein the thickness of the first interface layer is 3mm to 12 mm;

the thickness of the first heat-preservation layer is 0-40 mm;

the thickness of the first decorative layer is 15 mm-25 mm.

10. The precast concrete outer wall rear window frame waterproof node structure as claimed in claim 7, wherein the thickness of the second interface layer is 3mm to 12 mm;

the thickness of the second heat-insulating layer is 0-40 mm;

the thickness of the second decorative layer is 9 mm-30 mm.