Prefabricated exterior wall without dismantling window opening template

Abstract

The present invention relates to the technical field of building components, and discloses a prefabricated exterior wall with a window opening template that does not need to be disassembled, comprising an exterior wall template, a window opening being formed on the exterior wall template, a window opening being provided on the inner periphery of the window opening, a first casting cavity being formed between the window opening template and the exterior wall template, a dovetail groove connected to a filling material being provided on the side of the window opening template facing the first casting cavity, a window frame being provided on the window opening template, and a window sash being provided on the window frame; thus, the present invention casts the window opening template and the exterior wall template into one body by pouring the filling material into the first casting cavity, the window opening template is directly used as a forming template for the opening, does not need to be disassembled, has fewer construction processes, and has high factory production efficiency; and during on-site installation, the window frame and the window sash can be directly installed on the window opening template, replacing the traditional method of first installing the template on-site and then installing the window frame, the flatness of the finished surface of the window opening is high, the on-site leveling work of window frame installation is reduced, the on-site installation time is short, and the on-site construction efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of building components, in particular to a prefabricated exterior wall without dismantling a window opening template. Background Art

[0002] With the continuous development and progress of construction technology and building materials performance, more and more engineering structure designs have adopted precast concrete exterior wall panel technology, which is prefabricated in component factories and installed on site. It has the advantages of simple construction process, convenient operation for workers and high safety factor of buildings, low cost and short construction period.

[0003] In the construction process of existing prefabricated building exterior wall panels, the installation of external windows is often to fix the window frame and the window opening template together, then press the window opening template on the exterior wall panel, and pour concrete. After the concrete is finally set, the fixing screws and the window opening template are removed, and the window frame needs to be leveled on site. The process is complicated, the on-site installation time is long, the on-site construction efficiency is low, and the demoulding operation is difficult. In particular, when prefabricated sandwich wall panels are used, the prefabricated sandwich wall panels are concrete panels-insulation layers-concrete panels, and anti-corrosion wood squares are fixed on the insulation layer with steel bars. Since the window frame is installed on the insulation layer, and this type of wall panel is produced During the production process, concrete often leaks out of the window openings, connecting the inner and outer concrete. This results in a 3-5cm concrete edge seal on the insulation layer, and together with the steel bars connected to the anti-corrosion wooden piles, a thermal bridge of the wall panel is formed. As a result, after the window frame is installed, the heat from the outdoors or indoors is transmitted to the indoors or outdoors through the concrete edge seal. Especially in late autumn and early winter, when the temperature difference between indoors and outdoors is large and the indoor ventilation is poor, cold and hot air are frequently in contact, and the uneven heat conduction of the wall insulation layer leads to a thermal bridge effect, which causes condensation, mold and even dripping on the interior walls of the house. In addition, with this installation method, there is a gap between the window frame and the concrete wall, which is prone to water seepage and leakage, and is not conducive to waterproofing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a prefabricated exterior wall which does not require demoulding and has high installation precision and high on-site construction efficiency and does not require demoulding of window opening templates.

[0005] In order to solve the above technical problems, the present invention provides a prefabricated exterior wall with a window opening template that does not require disassembly, including an exterior wall template, a window opening is opened on the exterior wall template, a window opening template is provided around the inner periphery of the window opening, a first pouring cavity for pouring filling material is formed between the window opening template and the exterior wall template, a dovetail groove connected to the filling material is provided on one side of the window opening template facing the first pouring cavity, a window frame is provided on the window opening template, and a window sash is provided on the window frame.

[0006] As a preferred solution of the present invention, the window opening template includes a first template, a second template, a third template and a fourth template, the first template is arranged at the top of the window opening, the second template is arranged at the bottom of the window opening, the third template is arranged at the left side of the window opening, and the fourth template is arranged at the right side of the window opening, the left and right ends of the first template are respectively connected to the top of the third template and the top of the fourth template, and the left and right ends of the second template are respectively connected to the bottom of the third template and the bottom of the fourth template.

[0007] As a preferred solution of the present invention, the material of the first template, the material of the second template, the material of the third template and the material of the fourth template are all low thermal conductivity materials.

[0008] As a preferred solution of the present invention, the low thermal conductivity material is wood plastic or glass fiber reinforced nylon.

[0009] As a preferred solution of the present invention, a waterproof tongue and groove is provided at the connection between the first template and the outdoor edge of the exterior wall template.

[0010] As a preferred solution of the present invention, the outdoor edge of the first template is provided with a drip groove, and the notch of the drip groove is arranged downward.

[0011] As a preferred solution of the present invention, the outdoor edge of the second template is provided with a drainage slope, and the drainage slope is inclined downward from the bottom of the window frame.

[0012] As a preferred solution of the present invention, a second pouring cavity is provided in each of the first template, the second template, the third template and the fourth template, and a pouring hole is provided on the cavity body of the second pouring cavity for connecting the second pouring cavity with the outside.

[0013] As a preferred solution of the present invention, the second casting cavity is filled with a thermal insulation foam material.

[0014] As a preferred solution of the present invention, a plurality of reinforcing ribs are provided on the cavity body of the second casting cavity.

[0015] Compared with the prior art, the prefabricated exterior wall without dismantling the window opening template in the embodiment of the present invention has the following beneficial effects:

[0016] The present invention casts the window opening template and the exterior wall template into one body by pouring the filling material into the first pouring cavity. The window opening template is directly used as the forming template of the opening and does not need to be dismantled, with fewer construction processes and high factory production efficiency. During on-site installation, the window frame and the window sash can be directly installed on the window opening template, replacing the traditional method of first installing the template and then installing the window frame on site. The flatness of the finished surface of the window opening is high, and the on-site leveling work of window frame installation is reduced, the on-site installation time is short, and the on-site construction efficiency is high. In addition, a dovetail groove connected to the filling material is provided on the window opening template, which can strengthen the connection strength with the exterior wall template, so that the window opening template and the exterior wall template form an integrated exterior wall structure with no gaps that is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a prefabricated exterior wall of a window opening template that does not require disassembly provided by an embodiment of the present invention;

[0018] Figure 2 It is Figure 1 A schematic cross-sectional view along the aa direction;

[0019] Figure 3 It is Figure 1 Schematic diagram of the cross section along the bb direction;

[0020] In the figure, 1. exterior wall formwork; 2. window frame; 3. window sash; 4. dovetail groove; 5. first formwork; 51. waterproof tongue and groove; 52. drip groove; 6. second formwork; 61. drainage slope; 7. third formwork; 8. fourth formwork; 9. second casting cavity. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] like Figures 1 to 3As shown, a preferred embodiment of a prefabricated exterior wall with a window opening template that does not require disassembly according to a preferred embodiment of an embodiment of the present invention comprises an exterior wall template 1, a window opening is formed on the exterior wall template 1, a window opening template is provided on the inner periphery of the window opening, a first pouring cavity for pouring filling material is formed between the window opening template and the exterior wall template 1, a dovetail groove 4 connected to the filling material is provided on one side of the window opening template facing the first pouring cavity, a window frame 2 is provided on the window opening template, and a window sash 3 is provided on the window frame 2.

[0024] Therefore, the present invention casts the window opening template and the exterior wall template 1 into one by pouring the filling material into the first pouring cavity. The window opening template is directly used as the forming template of the opening and does not need to be demolded, with fewer construction processes and high factory production efficiency. During on-site installation, the window frame 2 and the window sash 3 can be directly installed on the window opening template, and the flatness of the finished surface of the window opening is high, which reduces the leveling work on the window frame installation site, reduces the on-site installation time, and improves the on-site construction efficiency. In addition, a dovetail groove 4 connected to the filling material is provided on the window opening template, which can strengthen the connection strength with the exterior wall template 1, so that the window opening template and the exterior wall template 1 form a seamless integrated exterior wall structure that is not easy to fall off.

[0025] Exemplarily, the window opening template includes a first template 5, a second template 6, a third template 7 and a fourth template 8, the first template 5 is arranged at the top of the window opening, the second template 6 is arranged at the bottom of the window opening, the third template 7 is arranged at the left side of the window opening, and the fourth template 8 is arranged at the right side of the window opening, the left and right ends of the first template 5 are respectively connected to the top of the third template 7 and the top of the fourth template 8 by screws, and the left and right ends of the second template 6 are respectively connected to the bottom of the third template 7 and the bottom of the fourth template 8 by screws, thereby, the user can select a suitable frame template for assembly according to the size of the window opening, which is convenient for assembly and disassembly.

[0026] Exemplarily, the material of the first template 5, the material of the second template 6, the material of the third template 7 and the fourth template 8 are all low thermal conductivity materials, and the low thermal conductivity materials are preferably wood plastic or glass fiber reinforced nylon, which further blocks the transfer of indoor and outdoor heat and improves the thermal insulation performance of the window node.

[0027] Exemplarily, a waterproof groove 51 is provided at the connection between the first template 5 and the outdoor edge of the exterior wall template 1, thereby blocking rainwater at the flange of the waterproof groove 51, thereby blocking the water flow on the exterior wall template 1 from flowing into the room through the gap between the first template 5 and the exterior wall template 1, thereby improving the waterproof performance of the prefabricated exterior wall.

[0028] Exemplarily, a drip groove 52 is provided on the outdoor edge of the first template 5, and the notch of the drip groove 52 is set downward, thereby blocking rainwater at the notch of the drip groove 52, thereby blocking the water flow on the first template 5 from flowing from the gap between the first template 5 and the window frame 2 to the interior, thereby improving the waterproof performance of the prefabricated exterior wall.

[0029] Exemplarily, the outdoor edge of the second template 6 is provided with a drainage slope 61, and the drainage slope 61 is inclined downward from the bottom of the window frame 2, so that rainwater flows downward along the drainage slope 61, preventing water on the window frame 2 from flowing into the room through the gap between the second template 6 and the window frame 2, thereby improving the waterproof performance of the prefabricated exterior wall.

[0030] Exemplarily, the first template 5, the second template 6, the third template 7 and the fourth template 8 are all provided with a second pouring cavity 9, and the cavity body of the second pouring cavity 9 is provided with a pouring hole connecting the second pouring cavity 9 with the outside world. The second pouring cavity 9 is filled with thermal insulation foam material to reduce the weight of the prefabricated exterior wall. At the same time, after the window frame 2 is installed, the thermal insulation foam material is filled into the second pouring cavity 9 on site to fill the gap in the second pouring cavity 9, thereby improving the overall rigidity of the door and window openings and further improving the waterproof performance of the prefabricated exterior wall.

[0031] Exemplarily, a plurality of reinforcing ribs are provided on the cavity of the second casting cavity 9 to improve the overall strength of the window opening template.

[0032] In the description of the present invention, it should be understood that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A prefabricated exterior wall without dismantling window opening formwork, characterized in that: The invention comprises an exterior wall template, wherein a window opening is formed on the exterior wall template, a window opening template is formed around the inner periphery of the window opening, a first pouring cavity for pouring a filling material is formed between the window opening template and the exterior wall template, a dovetail groove connected to the filling material is provided on one side of the window opening template facing the first pouring cavity, a window frame is provided on the window opening template, and a window sash is provided on the window frame; The window opening template comprises a first template, a second template, a third template and a fourth template, wherein the first template is arranged at the top of the window opening, the second template is arranged at the bottom of the window opening, the third template is arranged at the left side of the window opening, and the fourth template is arranged at the right side of the window opening, the left and right ends of the first template are respectively connected to the top of the third template and the top of the fourth template, and the left and right ends of the second template are respectively connected to the bottom of the third template and the bottom of the fourth template; A waterproof tongue and groove is provided at the connection between the first template and the outdoor edge of the exterior wall template; The outdoor edge of the first template is provided with a drip groove, and the notch of the drip groove is arranged downward.

2. A prefabricated exterior wall with a window opening formwork that does not require disassembly as claimed in claim 1, characterized in that: The material of the first template, the material of the second template, the material of the third template and the material of the fourth template are all low thermal conductivity materials.

3. A prefabricated exterior wall with a window opening formwork that does not require disassembly as claimed in claim 2, characterized in that: The low thermal conductivity material is wood plastic or glass fiber reinforced nylon.

4. The prefabricated exterior wall with a window opening formwork that does not require disassembly as claimed in claim 1, characterized in that: The outdoor edge of the second template is provided with a drainage slope, and the drainage slope is inclined downward from the bottom of the window frame.

5. The prefabricated exterior wall with a window opening formwork that does not require dismantling as claimed in claim 1, characterized in that: A second pouring cavity is provided in each of the first template, the second template, the third template and the fourth template. A pouring hole is provided on the cavity body of the second pouring cavity for connecting the second pouring cavity with the outside.

6. A prefabricated exterior wall with a window opening formwork that does not require disassembly as claimed in claim 5, characterized in that: The second casting cavity is filled with heat-insulating foaming material.

7. The prefabricated exterior wall with a window opening formwork that does not require dismantling as claimed in claim 5, characterized in that: A plurality of reinforcing ribs are arranged on the cavity body of the second casting cavity.

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