Prefabricated wall and door and window formwork-free combined structure and mounting method therefor

Abstract

The present invention relates to the field of door and window construction. Disclosed are a prefabricated wall and door and window formwork-free combined structure and a mounting method therefor. The prefabricated wall and door and window formwork-free combined structure comprises a door and window system and a wall; the door and window system comprises a door and window trim and a door and window body; folded edges which are vertically folded are provided on one side or two sides of a connecting side of the door and window trim and the wall, the surface of at least one folded edge facing the wall is provided with a sealing portion, and an outer end of each folded edge is provided with a locking edge portion embedded into the wall; the door and window body comprises a glass pane, a window sash, and a door and window frame, the glass pane and the window sash are provided on the door and window frame, and the door and window frame is fixed to a fixing portion on the door and window trim; and the wall is cast and connected to one side or two sides of the connecting side of the wall and the door and window trim. The wall and door and window combined structure of the present invention can improve the sealing performance of doors and windows, and prevent water penetration and leakage. Moreover, the door and window trim of the present invention can serve as a formwork during casting, thereby simplifying construction procedures.

Description

A prefabricated wall and door / window formwork-free combination structure and its installation method Technical Field

[0001] This invention relates to the field of door and window construction, and more specifically, to a prefabricated wall and door / window formwork-free combination structure and its installation method. Background Technology

[0002] With the rapid development of my country's construction industry and the increasing demands of residents for housing quality, the corresponding standards and requirements for building construction have been gradually improved. The latest standards have significantly refined and enhanced the overall quality standards for door and window installation compared to the past. Specifically, the latest standards have established strict classifications for the airtightness, watertightness, and wind pressure resistance of building doors and windows, defining corresponding construction quality standards to regulate many problems existing in traditional building door and window installation.

[0003] In traditional building door and window installation, a slightly larger than the door or window opening is typically pre-drilled during the overall wall construction, awaiting the subsequent installation of the door and window frames and sashes. The gap between the installation opening and the installed window frame is sealed using waterproof mortar, waterproof coating, and structural adhesive. However, due to substandard waterproofing techniques during actual construction and natural aging during subsequent maintenance, leaks inevitably occur at these gaps during strong winds and heavy rains.

[0004] The existing improved patent technology (CN202111388425.0) proposes an installation method for pre-casting window frame connectors into the wall where doors and windows are installed. This achieves an integrated structural design between the existing door and window outer frame cavity and the cavity material pre-installed in the building wall, increasing the sealing and waterproofing performance of the doors and windows after installation. However, this technical solution still does not deviate from the traditional construction route of later assembly of the window frame and the wall (in this technology, a sub-frame pre-installed within the wall). Gaps still exist between the wall and the window frame during assembly, requiring waterproofing sealing. Furthermore, the assembly and installation of the window frame connectors and the waterproofing process in this solution require considerable installation time, significantly increasing on-site construction time costs. Summary of the Invention

[0005] In summary, a novel prefabricated wall and window / door assembly structure without formwork is proposed to solve the problem of window frame installation gaps compromising the overall sealing performance of windows and doors in existing technologies. Furthermore, an installation method for this prefabricated wall and window / door assembly structure without formwork is provided, shortening the installation time.

[0006] Door and window frames are installed on the two vertical sides of the door and window openings. They can protrude from the exterior wall to form a frame or be flush with the exterior wall, and are used to protect and decorate the door and window frames.

[0007] The present invention provides a combined structure of wall and door / window, comprising a door / window system and a wall.

[0008] The door and window system includes door and window frames and door and window bodies.

[0009] The door and window frames have vertically folded edges on one or both sides where they connect to the wall. At least one edge has a sealing part on the side that is in contact with the wall, and the outer end of the edge has a locking part that is embedded in the wall.

[0010] The door and window body includes glass, window sash and door and window frame. The glass and window sash are set on the door and window frame, and the door and window frame is fixed to the fixing part on the door and window casing.

[0011] The wall is cast and connected to the door and window frame on one or both sides.

[0012] As a further improvement of the present invention, when the door and window system is installed in a pre-supported mold of a wall with windows, the door and window frames are installed on the four sides of the window opening, forming a fully enclosed structure. When the door and window system is installed in a pre-supported mold of a wall with doors, the door and window frames are installed on the wall except for the bottom of the door opening, forming a semi-enclosed structure.

[0013] As a further improvement of the present invention, a number of spaced holes are made around the center of the door and window frame. The width of the holes in the direction parallel to the wall surface decreases from the center of the door and window frame towards both sides.

[0014] As a further improvement of the invention, it also includes a shaping frame and decorative lines. Several shaping frames are fixedly installed at the position partially surrounded by the folded edge on the door and window frame, and are integrally cast and fixed into the wall. Decorative lines are fixedly connected to the folded edge or the wall.

[0015] As a further improvement of the present invention, the sealing part structure is a folded groove formed by the folded edge being recessed towards the side that is attached to the wall, and a sealing strip is embedded in the folded groove, the sealing strip being in contact with and sealed to the cast wall side template; or an elastic sealing strip is attached to the outer wall of the folded edge, the elastic sealing strip being in contact with and sealed to the wall side template; or both the outer wall surface of the folded edge and the cast wall side template have flat surfaces, and the flat surfaces of the two are directly in contact and sealed.

[0016] As a further improvement of the present invention, the locking edge structure is provided with a flange embedded in the wall at the outer end of the folded edge; or a thickened protruding structure embedded in the wall is provided at the outer end of the folded edge.

[0017] As a further improvement of the present invention, a pair of vertically folded edges are provided on both sides of the door and window frame connecting to the wall. Both sides of the folded edges are recessed towards the side that is in contact with the wall and are provided with folded edge grooves. The outer ends of both sides of the folded edges are provided with flanges that are embedded in the wall. Alternatively, a vertically folded edge is provided on one side of the door and window frame connecting to the wall. The folded edge is recessed towards the side that is in contact with the wall and is provided with folded edge grooves. The outer ends of the folded edge are provided with flanges that are embedded in the wall.

[0018] As a further improvement of the present invention, the door and window frame includes an outer window frame and an inner window frame. The outer window frame is disposed on one side of the outer facade of the wall, and the inner window frame is disposed on one side of the inner facade of the wall. The horizontal height of the bottom inner window frame is higher than the horizontal height of the bottom outer window frame.

[0019] As a further improvement of the present invention, a recessed mounting groove is provided in the middle of the door and window frame, and an outwardly protruding reinforcing rib is provided at the bottom of the door and window frame. The reinforcing rib is matched and embedded in the mounting groove and snapped in place.

[0020] As a further improvement of the present invention, an installation method for a prefabricated wall and door / window formwork-free combined structure includes the following steps:

[0021] a. Pre-install and assemble the door and window frames and door and window frames into one unit, and install the shaping frame at intervals at the position partially surrounded by the folded edge on the door and window frames;

[0022] b. Install a sealing strip in the folding groove on the folded edge;

[0023] c. Erect and fix the combination of door and window frames and door and window casings at the location of the target door and window opening, and tie the steel reinforcement skeleton of the wall around the combination;

[0024] d. Install concrete pouring templates on both sides of the door and window frames. The templates are clamped and fitted with the sealing strips in the folding grooves. Concrete is poured into the templates to prefabricate the combination of door and window frames, door and window frames and shaping frames with the wall as one unit.

[0025] e. After the concrete has been poured and solidified, install the glass and window sashes in the door and window frames, and connect and fix the finished decorative moldings to the folded edge or wall with expansion bolts.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. Door and window frames and door and window casings are pre-assembled and installed, and can be directly cast and fixed during wall construction, prefabricated into one piece. This saves the time and cost of reserving openings when casting walls in existing technologies. The entire door and window installation can be completed by simply installing the corresponding glass and window sashes in the door and window frames during interior decoration.

[0028] Second, the door and window frames are fixedly integrated with the connected wall by a cast-in-place method, eliminating the need for waterproof sealing of installation gaps as required by existing technologies. This ensures the airtightness of the door and window positions and eliminates the complex gap sealing construction process. Furthermore, the bottom inner window frame is at a higher level than the bottom outer window frame, providing an automatic drainage effect to the outside and preventing rainwater from entering from the outer window frame side.

[0029] Third, the door and window frames have holes to reduce their heat conduction area. The interior of the door and window frames has low thermal conductivity cavities, and the cavity walls are connected with low thermal conductivity connecting materials. This can effectively reduce the heat exchange between the two sides of the door and window frames and maintain a stable indoor temperature.

[0030] Fourth, door and window frames are not only components of the door and window system that need to be installed, but they can also serve as templates for the wall surfaces of door and window openings during the wall pouring process, further simplifying the wall construction process.

[0031] Fifth, door and window frames serve as decoration and protection for door and window openings, enhancing the aesthetics of buildings, protecting the lifespan of houses, and improving the quality of life for users. Attached Figure Description

[0032] Figure 1 is a cross-sectional structural diagram of the double-folded door and window frame of the present invention during installation;

[0033] Figure 2 is a cross-sectional structural diagram of the double-folded door and window frame of the present invention;

[0034] Figure 3 is a schematic diagram of the installation structure of the present invention when the corner of the door and window frame is rounded.

[0035] Figure 4 is a schematic diagram of the installation structure of the door and window frame of the present invention when the corner is a right angle;

[0036] Figure 5 is a cross-sectional structural diagram of the single-folded door and window frame of the present invention during installation;

[0037] Figure 6 is a cross-sectional structural diagram of the single-folded door and window frame of the present invention;

[0038] Figure 7 is a schematic cross-sectional view of the door and window frame structure of the present invention;

[0039] Figure 8 is a schematic diagram of the structure of the door and window frame after slots are opened in the plane of the present invention;

[0040] Figure 9 is a schematic diagram of the structure of the door and window frame after continuous circular holes are opened on the plane of the present invention;

[0041] Figure 10 is a schematic diagram of the structure of the door and window frame of the present invention, which has a heat-insulating hollow cavity and a heat-insulating strip connection.

[0042] Figure 11 is a schematic diagram of the structure of the door and window frame of the present invention, which has a protrusion embedded in the wall at the outer end of the folded edge;

[0043] Figure 12 is an enlarged schematic diagram of the protrusion structure at point a selected in Figure 11 of this invention.

[0044] The following are the labels in the diagram: 1. Door and window frame; 2. Door and window frame; 3. Wall; 4. Frame; 5. Decorative molding; 101. Outer window frame; 102. Inner window frame; 103. Folded edge; 104. Folded edge groove; 105. Flanged edge; 106. Mounting groove; 201. Reinforcing rib. Detailed Implementation

[0045] In the description of this application, it should be noted that the terms "upper", "lower", "inner side", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific drawings provided. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] Specific Implementation Example 1: Please refer to Figures 1-4.

[0047] A prefabricated wall and door / window assembly structure without formwork support includes a door / window system, a wall 3, a frame 4, and decorative moldings 5.

[0048] When the door and window system is installed in a pre-supported mold of a wall with windows, the door and window frame 1 is installed on the four sides of the window opening, forming a fully enclosed structure; when the door and window system is installed in a pre-supported mold of a wall with doors, the door and window frame 1 is installed on the wall except for the bottom of the door opening, forming a semi-enclosed structure.

[0049] The door and window system includes the door and window frame 1 and the door and window body.

[0050] As shown in Figure 2, the door and window frame 1 can be made of stamped metal sheet, integrally molded rigid plastic or fiberglass, or bent and spliced ​​aluminum profile. Divided by the middle, it consists of an outer window frame 101 and an inner window frame 102 on either side. Both the outer window frame 101 and the inner window frame 102 on both sides extend with vertical folded edges 103. The folded edges 103 have concave folded edge grooves 104, and the bottom end of the folded edges 103 has a flange 105 that folds inward and upward. Two parallel, downwardly recessed mounting grooves 106 are formed on both sides of the middle section of the door and window frame 1.

[0051] As shown in Figures 3 and 4, the door and window frame 1 has two forms at the corners: rounded corners and right angles.

[0052] The door and window body includes glass, window sash and door and window frame 2. The glass and window sash are set on the door and window frame 2, and the door and window frame 2 is fixed to the inside of the door and window casing 1.

[0053] As shown in Figure 7, two parallel, hook-shaped reinforcing ribs 201 are formed on both sides of the lower part of the door and window frame 2. The reinforcing ribs 201 match the mounting grooves 106 on the upper part of the door and window sleeve 1 and are installed and embedded therein to achieve a fixed connection. When the door and window sleeve 1 is fixedly connected to the door and window frame 2, structural adhesive or other sealing adhesives are added into the mounting grooves 106 to further improve the connection and sealing performance between the door and window sleeve 1 and the door and window frame 2.

[0054] Within the space partially enclosed by the two side flanges 103 of the door and window frame 1, several fixed frames 4 are vertically arranged at even intervals. The fixed frames 4 are fixedly connected to the upper door and window frame 1 and the inner side of the two side flanges 103. The fixed frames 4 are cast and fixed inside the wall 3.

[0055] After the door and window frame 1 and the door and window frame 2 are combined, they are installed as a whole at the door and window opening position on the wall 3. The part partially surrounded by the folded edges 103 on both sides of the door and window frame 1 is cast and connected to the wall 3. The folded edges 103 on both sides of the door and window frame 1 wrap around and fit the two sides of the wall 3. The folded edge groove 104 extends into the wall 3, and the flange 105 is inclined and embedded into the wall 3. After the wall 3 is cast and solidified, the door and window frame 1 and the fixing frame 4 are fixed to the wall 3 to form an integral whole.

[0056] As shown in Figure 1, after the assembled door and window frame 1 and door and window frame 2 are cast onto the wall 3, the decorative line 5 is connected and fixed to the wall 3 by expansion screws. The decorative line 5 matches the outer contour of the door and window frame 1, and has a stepped protruding structure that fits and covers the boundary line between the folded edge 103 and the wall 3. Light strips can be added to the decorative line 5 to illuminate and decorate the window.

[0057] During the pouring of wall 3, a sealing strip is embedded in the folded groove 104. The sealing strip fits and seals against the poured wall side formwork to prevent concrete from leaking to the door and window system side; or an elastic sealing strip is attached to the outer wall of the folded edge 103, which fits and seals against the wall side formwork; or both the outer wall of the folded edge 103 and the wall side formwork of the poured wall 3 have flat surfaces, and the two flat surfaces fit tightly together to achieve a seal.

[0058] Specific Embodiment Two: As shown in Figures 8-10, based on Specific Embodiment One, holes are made in the middle plane of the door and window frame 1 to reduce the heat transfer cross-sectional area of ​​the middle part of the door and window frame 1, thereby reducing the heat conduction between the indoor and outdoor areas; in addition, several hollow cavities are made inside the door and window frame 2, and strips of low thermal conductivity material are set at intervals to connect the walls between the hollow cavities, so as to reduce the heat exchange between the two sides of the door and window frame 2 and ensure the stability of the indoor temperature.

[0059] Furthermore, the holes made in the door and window frame 1 are circular or polygonal, and the width of the holes in the direction parallel to the wall surface tends to decrease from the middle of the door and window frame 1 to both sides of the door and window frame 1.

[0060] Specific Embodiment 3: As shown in Figure 11-12, the enlarged view of the circled area shows that, based on Specific Embodiment 1, the flange 105 structure on the folded edge 103 is changed to a thickened protruding structure embedded in the wall 3. Specifically, the outer end of the folded edge 103 protrudes and expands towards one side of the wall 3 and is embedded into the wall 3 as a whole. It is anchored to the wall 3 by casting, thus achieving a firm connection with the wall 3.

[0061] Specific Embodiment Four: As shown in Figure 5, based on Specific Embodiment One, changes are made to the structure of the door and window frame 1 and the installation of the door and window frame 2 to achieve a window without a sill structure on the inner side of the window. As shown in Figure 6, one side of the inner window frame 102 of the door and window frame 1 is changed to a structure without a folded edge 103, and the middle mounting groove 106 is changed to a single strip. When the door and window frame 2 is installed, the reinforcing rib 201 on the right side is matched and installed with the mounting groove 106 and fixed by snap-fit; the outer edge of the reinforcing rib 201 on the left side is flush with the inner surface of the wall 3, and during the pouring connection, its hook-shaped structure extends into the wall 3 and is fixed to it by pouring.

[0062] Specific Embodiment 5: The installation method is the opposite of Specific Embodiment 4. The door and window frame 2 is attached to one side of the outer facade of the wall 3 to realize an embodiment of the window without a windowsill structure on the outside.

[0063] Taking the specific configuration of the door and window system in Embodiment 1 as an example, the installation method of the prefabricated wall and door and window formwork-free combination structure of the present invention is as follows:

[0064] a. Pre-install and assemble the door and window frame 1 and the door and window frame 2 into one unit. Add structural adhesive and other sealing adhesives into the installation groove 106. Place several fixed frames 4 at even intervals vertically in the space semi-enclosed by the folded edges 103 on both sides of the door and window frame 1. Fix the fixed frames 4 to the inner side of the folded edges 103 on both sides and the door and window frame 1 above by means of screw connection or welding.

[0065] b. An installation sealing strip is embedded in the folding groove 104 on the folding edge 103, and the edge of the sealing strip protrudes slightly from the vertical surface of the folding edge 103;

[0066] c. The assembly of door and window frame 1 and door and window frame 2 is erected and fixed at the target door and window opening, and the steel reinforcement frame of wall 3 is tied around the assembly;

[0067] d. Install vertical concrete pouring templates on both sides of the door and window frame 1, and use the door and window frame 1 itself as the template for the door and window opening wall. The concrete pouring templates on both sides are clamped and fitted with the sealing strip in the folding groove 104. When pouring concrete in the template, the concrete will not overflow to the door and window frame 1 on the other side of the sealing strip due to the obstruction of the sealing strip. The combination of the door and window frame 1 and the door and window frame 2 and its shaping frame 4 are prefabricated as a whole with the wall 3.

[0068] e. After the concrete has been poured and solidified, install the glass and window sash in the door and window frame 2, and fix the finished decorative line 5 to the wall 3 with expansion bolts to fit and cover the boundary line between the folded edge 103 and the wall 3.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All variations, modifications, and substitutions within the spirit and principle of this design are within the protection scope of the present invention.

Claims

1. A prefabricated wall and door / window assembly structure without formwork support, characterized in that: Including window and door systems and walls (3); The door and window system includes door and window frames (1) and door and window bodies; The door and window frame (1) has a vertically folded edge (103) on one or both sides where it connects to the wall (3). At least one edge (103) has a sealing part on the side that is attached to the wall (3). The outer end of the edge (103) has a locking part that is embedded in the wall (3). The door and window body includes glass, window sash and door and window frame (2), the glass and window sash are set on the door and window frame (2), and the door and window frame (2) is set on the fixing part of the door and window casing (1); The wall (3) is cast and connected to the door and window frame (1) on one or both sides.

2. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: When the door and window system is installed in the pre-support mold of the wall with doors and windows, the door and window frame (1) is installed on the four sides of the window opening, forming a fully enclosed structure; when the door and window system is installed in the pre-support mold of the wall with doors, the door and window frame (1) is installed on the wall position except for the bottom of the door opening, forming a semi-enclosed structure.

3. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: Several holes are opened at intervals around the middle of the door and window frame (1); the width of the holes in the direction parallel to the wall surface tends to decrease from the middle of the door and window frame (1) to both sides of the door and window frame (1).

4. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: It also includes a frame (4) and decorative lines (5); several frames (4) are fixedly installed at the position partially surrounded by the folded edge (103) on the door and window frame (1), and are cast and fixed inside the wall (3); the decorative lines (5) are fixedly connected to the folded edge (103) or the wall (3).

5. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: The sealing structure is a folded groove (104) formed by the folded edge (103) recessed towards the side of the wall (3), and a sealing strip is embedded in the folded groove (104), which is in contact with the cast wall side template for sealing; or an elastic sealing strip is attached to the outer wall of the folded edge (103), which is in contact with the wall side template for sealing; or the outer wall of the folded edge (103) and the cast wall side template of the wall (3) are both made with flat surfaces, and the flat surfaces of the two are directly in contact for sealing.

6. The prefabricated wall and door / window formwork-free combination structure according to claim 5, characterized in that: The locking edge structure is such that the outer end of the folded edge (103) has a flange (105) embedded in the wall (3); or the outer end of the folded edge (103) has a thickened protruding structure embedded in the wall (3).

7. The prefabricated wall and door / window formwork-free combination structure according to claim 6, characterized in that: On both sides of the door and window frame (1) connected to the wall (3), there is a pair of vertically folded edges (103). Both sides of the edges (103) are recessed towards the side that is attached to the wall (3) and are provided with edge grooves (104). The outer ends of both sides of the edges (103) are provided with flanges (105) that are embedded in the wall (3). Alternatively, on one side of the door and window frame (1) connected to the wall (3), there is a vertically folded edge (103). The edges (103) are recessed towards the side that is attached to the wall (3) and are provided with edge grooves (104). The outer ends of the edges (103) are provided with flanges (105) that are embedded in the wall (3).

8. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: The door and window frame (1) includes an outer window frame (101) and an inner window frame (102). The outer window frame (101) is located on one side of the outer facade of the wall (3), and the inner window frame (102) is located on one side of the inner facade of the wall (3). The horizontal height of the bottom inner window frame (102) is higher than the horizontal height of the bottom outer window frame (101).

9. The prefabricated wall and door / window formwork-free combination structure according to claim 1, characterized in that: The door and window frame (1) has a recessed mounting groove (106) in the middle, and the bottom of the door and window frame (2) has an outwardly protruding reinforcing rib (201). The reinforcing rib (201) is fitted into the mounting groove (106) and snapped in place.

10. An installation method for a prefabricated wall and door / window formwork-free combination structure as described in any one of claims 1-9, characterized in that, Includes the following steps: a. Pre-install and combine the door and window frame (1) and the door and window frame (2) into one unit, and install the shaping frame (4) at intervals at the position partially surrounded by the folded edge (103) on the door and window frame (1); b. An installation sealing strip is embedded in the folding groove (104) on the folded edge (103); c. The assembly of the door and window frame (1) and the door and window frame (2) is erected and fixed at the target door and window opening, and the steel reinforcement frame of the wall (3) is tied around the assembly; d. Install concrete pouring templates on both sides of the door and window frame (1), clamp the templates tightly with the sealing strips in the folding groove (104), pour concrete in the templates, and prefabricate the combination of the door and window frame (1), door and window frame (2) and the shaping frame (4) with the wall (3) as a whole. e. After the concrete is poured and solidified, install the glass and window sash in the door and window frame (2), and fix the finished decorative lines (5) to the folded edge (103) or wall (3) with expansion bolts.

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