Unit type windowsill line mounting structure based on double-sided laminated wallboards

Abstract

The utility model relates to a unit type windowsill line mounting structure based on a double-sided laminated wallboard. The unit type windowsill line mounting structure comprises an upper unit type line, a lower unit type line, a connecting screw rod and the double-sided laminated wallboard, first reserved PVC holes are formed in the upper edge and the lower edge of the reserved window hole of the double-sided laminated wallboard; the upper unit type line and the lower unit type line are respectively provided with a second reserved PVC hole which is correspondingly communicated with the first reserved PVC hole; the connecting screws penetrate through the first reserved PVC holes and the second reserved PVC holes and fix the upper unit type lines and the lower unit type lines to the double-face laminated wallboard through nuts respectively. The line can be integrally installed after being prefabricated as a unit, adhesive or a steel frame is not needed for fixing, cutting is not needed on site, extra processing of joints is not needed, the problems of cracking, leakage and the like are avoided, and integrity is good. The problems of multiple splicing seams and low efficiency of sectional splicing of the windowsill line in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to a window sill trim installation structure, specifically, a unit-type window sill trim installation structure based on double-sided composite wall panels. Background Technology

[0002] In the construction industry, "window sill molding" generally refers to a horizontal decorative strip that protrudes from the wall and is located on the outer side of the bottom of the window opening, serving both waterproofing and decorative functions.

[0003] Existing window sill trim installation structures generally fall into the following categories:

[0004] 1) Integrated casting or pre-embedded with the wall: In traditional cast-in-place concrete walls, window sill moldings are often cast simultaneously with the wall using formwork, requiring pre-designed moldings, resulting in a long construction period and high precision requirements for the moldings. In precast wall panels, moldings may be pre-embedded within the panel, but due to production limitations, complex shapes are difficult to achieve, especially for sandwich insulated wall panels where the insulation layer makes it even more difficult to create protruding shapes.

[0005] 2) Post-installed segmented splicing: Molding materials (such as GRC, EPS, stone, etc.) are installed in segments after the wall is completed and fixed with bolts, adhesives, or steel frames. On-site cutting and adjustment of joints are required, and additional treatment is needed at the joints (such as applying sealant or plastering). This method is prone to cracking and leakage, and the overall integrity is poor.

[0006] 3) Reliance on auxiliary support structures: The cantilevered lines require additional welding or installation of steel supports for load-bearing, which increases the complexity of construction and may affect the continuity of insulation. Summary of the Invention

[0007] The purpose of this utility model is to provide a unitized window sill line installation structure based on double-sided composite wall panels, which is actually a "post-installed integral installation" installation method, solving the technical problem pointed out above regarding "post-installed segmented splicing".

[0008] The present invention adopts the following technical solution:

[0009] A unitized window sill trim installation structure based on a double-sided composite wall panel includes an upper unit trim 2, a lower unit trim 6, a connecting screw 8, and a double-sided composite wall panel 1. The upper and lower edges of the reserved window openings in the double-sided composite wall panel 1 are each provided with a first reserved PVC hole 5. The upper unit trim 2 and the lower unit trim 6 are each provided with a second reserved PVC hole 7 that corresponds to and communicates with the first reserved PVC hole. The connecting screw 8 passes through the first reserved PVC hole 5 and the second reserved PVC hole 7 and uses nuts to fix the upper unit trim 2 and the lower unit trim 6 to the double-sided composite wall panel 1.

[0010] In this technical solution, during factory prefabrication, PVC holes are formed by pre-embedded PVC sleeves on both the molding and the inner leaf plate. The molding is then connected to the double-sided composite wall panel by connecting screws, thus forming a unit-type window sill molding installation structure based on the double-sided composite wall panel. The molding is installed as a complete module (such as the entire length of the window sill) at one time, avoiding the problems of "requiring on-site cutting and adjustment of joints, additional treatment at the joints (such as applying glue and plastering), easy cracking and leakage, and poor overall integrity" caused by segmented splicing in the existing technology.

[0011] Preferably, a pre-reserved tongue and groove joint 4 is provided at the inner leaf plate of the lower edge of the reserved window opening of the double-sided composite wall panel. The pre-reserved tongue and groove joint 4 is located above the first reserved PVC hole 5, and the lower unit-type molding 6 can be partially embedded in the pre-reserved tongue and groove joint 4. As the main load-bearing part of the windowsill or decorative molding, it needs to directly bear its own weight, external loads (such as wind pressure and rainwater impact), and temporary loads during the construction stage. Through the interlocking of the tongue and groove joint with the concrete layer of the double-sided composite wall panel, a mechanical interlock is formed after the cavity concrete is poured, which enhances the integrity; at the same time, the tongue and groove joint can form a drainage slope or water-blocking edge to prevent rainwater from flowing back to the wall joint.

[0012] Furthermore, no tongue and groove joint is provided at the inner leaf plate of the upper edge of the reserved window opening of the double-sided composite wall panel. The upper trim does not have a tongue and groove joint, mainly because it is usually a purely decorative trim (such as a waistline or window lintel) that does not need to bear structural loads. It only needs to be fixed to the wall panel surface by connectors (such as screws or embedded parts). At the same time, the absence of a tongue and groove joint reduces the complexity of wall panel production, allowing for direct post-installation fixing.

[0013] Preferably, the double-sided composite wall panel 1 is a double-sided composite sandwich insulation wall panel, with the insulation layer located in the inner cavity adjacent to the inner leaf plate, and the insulation layer having a notch near the window opening to avoid the connecting screw 8.

[0014] Furthermore, the reserved tongue and groove 4 has a rectangular structure.

[0015] Preferably, the lower edge of the upper unit line 2 is flush with the window opening, and the upper edge of the lower unit line 6 is flush with the window opening.

[0016] Preferably, the connecting screw 8 is a pull-type screw with threads at both ends.

[0017] Preferably, the first reserved PVC hole 5 and the corresponding connecting screw 8 are provided in three sets and are evenly arranged; the second reserved PVC hole 7 and the corresponding connecting screw 8 are also provided in three sets and are evenly arranged.

[0018] Preferably, the upper unit line 2 and the lower unit line 6 are made of one of the following materials: wood, concrete, foamed ceramics, fiberboard, and UHPC.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1) The molding is prefabricated as a unit and can be installed as a whole without the need for adhesives or steel frames for fixing. No on-site cutting or additional treatment at the joints (such as applying glue or plastering) is required, avoiding problems such as cracking and leakage, and ensuring good overall integrity. This solves the problems of numerous seams and low efficiency in the segmented splicing of window sill moldings in existing technologies, and represents an upgraded technology in prefabricated buildings.

[0021] 2) A tongue and groove joint is installed on the inner leaf plate of the precast composite wall panel at the lower edge of the window opening. The tongue and groove joint serves as an elevation control point during installation and can be adjusted for accuracy with shims. During concrete pouring, the tongue and groove joint prevents the lines from shifting due to the lateral pressure of the concrete. At the same time, the tongue and groove joint interlocks with the concrete layer of the double-sided composite wall panel, forming a mechanical interlock after the cavity concrete is poured, enhancing the overall integrity; simultaneously, the tongue and groove joint can form a drainage slope or water-retaining edge to prevent rainwater from flowing back into the wall joints.

[0022] 3) No tongue and groove joint at the top: The upper lines often need to be coordinated with door and window frames or curtain walls. The absence of tongue and groove joints facilitates on-site adjustments. At the same time, it avoids redundancy in wall panel production: If tongue and groove joints are set at both the top and bottom, the cost of wall panel molds and the difficulty of production will increase, but the benefits will be limited. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the unitized window sill line installation structure based on double-sided composite wall panels during the installation process of this utility model.

[0024] Figure 2 This is a cross-sectional view of the unitized window sill line installation structure based on double-sided composite wall panels when the installation is completed.

[0025] Figure 3 Is with Figure 2 Correspondingly, this utility model presents a front view of the unitized window sill line installation structure based on double-sided composite wall panels after installation.

[0026] In the diagram, 1. Double-sided composite wall panel, 2. Upper unit-type molding, 3. Window opening, 4. Reserved tongue and groove joint, 5. First reserved PVC hole, 6. Lower unit-type molding, 7. Second reserved PVC hole, 8. Connecting screw. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] In the construction industry, "window sill trim" generally refers to a horizontal decorative strip that protrudes from the wall and is located on the outer side of the bottom of the window opening, serving both waterproofing and decorative functions. This embodiment focuses on introducing a new type of installation structure for window sill trim at the top and bottom of the window opening.

[0029] See Figures 1-3 A unitized window sill trim installation structure based on double-sided composite wall panels includes an upper unit trim 2, a lower unit trim 6, a connecting screw 8, and a double-sided composite wall panel 1; wherein the upper unit trim 2, the lower unit trim 6, and the double-sided composite wall panel 1 are all prefabricated in the factory and installed on the construction site.

[0030] Figure 1 The installation process of the unitized window sill trim structure is shown. The upper and lower edges of the reserved window opening of the double-sided composite wall panel 1 are provided with first reserved PVC holes 5; the upper unitized trim 2 and the lower unitized trim 6 are each provided with second reserved PVC holes 7 that are connected to the first reserved PVC holes.

[0031] Combination Figure 1 and Figure 2 The connecting screw 8 passes through the first reserved PVC hole 5 and the second reserved PVC hole 7 and fixes the upper unit line 2 and the lower unit line 6 to the double-sided composite wall panel 1 respectively through the nut.

[0032] In this embodiment, during factory prefabrication, PVC holes are formed by pre-embedded PVC sleeves on both the molding and the inner leaf plate. The molding is then connected to the double-sided composite wall panel by connecting screws, thus forming a unit-type window sill molding installation structure based on the double-sided composite wall panel. The molding is installed as a complete module (such as the entire length of the window sill) at one time, avoiding the problems caused by segmented splicing in the prior art, such as "requiring on-site cutting and adjustment of the joints, additional treatment at the joints (such as applying glue and plastering), easy cracking and leakage, and poor overall integrity".

[0033] In a preferred embodiment, see Figure 1 A pre-reserved tongue and groove joint 4 is provided at the inner leaf plate of the lower edge of the reserved window opening of the double-sided composite wall panel. The pre-reserved tongue and groove joint 4 is located above the first reserved PVC hole 5, and the lower unit-type strip 6 can be partially embedded in the pre-reserved tongue and groove joint 4. As the main load-bearing part of the windowsill or decorative strip, it needs to directly bear its own weight, external loads (such as wind pressure and rainwater impact), and temporary loads during the construction stage. Through the interlocking of the tongue and groove joint with the concrete layer of the double-sided composite wall panel, a mechanical interlock is formed after the cavity concrete is poured, which enhances the integrity; at the same time, the tongue and groove joint can form a drainage slope or water-blocking edge to prevent rainwater from flowing back to the wall joint.

[0034] Meanwhile, continue to see Figure 1The inner leaf plate at the upper edge of the reserved window opening of the double-sided composite wall panel does not have a pre-reserved tongue and groove joint. The upper trim does not have a tongue and groove joint, mainly because it is usually a purely decorative trim (such as a waistline or window lintel) that does not need to bear structural loads. It only needs to be fixed to the wall panel surface by connectors (such as screws or embedded parts). At the same time, the absence of a tongue and groove joint reduces the complexity of wall panel production, and it can be directly fixed after installation.

[0035] See Figure 1-2 The double-sided composite wall panel 1 is a double-sided composite sandwich insulation wall panel. The insulation layer is located in the inner cavity, close to the inner leaf plate. The insulation layer has a notch near the window opening to avoid the connecting screw 8.

[0036] It should be noted that the so-called "inner leaf plate" refers to a leaf plate on the interior side of the double-sided composite wall panel, which has a cavity between it and the outer leaf plate for cast-in-place concrete, such as... Figure 1-2 As shown.

[0037] In this embodiment, see Figure 1-2 The reserved tongue and groove 4 has a rectangular structure.

[0038] In this embodiment, see Figure 1-2 The lower edge of the upper unit line 2 is flush with the window opening, and the upper edge of the lower unit line 6 is flush with the window opening.

[0039] In this embodiment, see Figure 2 The connecting screw 8 is a pull-type screw with threads at both ends.

[0040] See Figure 3 The first reserved PVC hole 5 and the corresponding connecting screw 8 are provided in three sets and are evenly arranged; the second reserved PVC hole 7 and the corresponding connecting screw 8 are also provided in three sets and are evenly arranged.

[0041] In this invention, the molding is prefabricated as a unit and can be installed as a whole without the need for adhesives or steel frames for fixing. No on-site cutting or additional treatment at the joints (such as caulking or plastering) is required, avoiding problems such as cracking and leakage, resulting in excellent overall integrity. This invention solves the problems of numerous joints and low efficiency in the segmented splicing of window sill moldings in existing technologies, representing an upgraded process in prefabricated buildings. A tongue and groove joint is provided on the inner leaf plate of the prefabricated composite wall panel at the lower edge of the window opening. This joint serves as an elevation control point during installation and can be adjusted for accuracy using shims. During concrete pouring, the tongue and groove joint prevents the molding from shifting due to lateral pressure from the concrete. Simultaneously, the tongue and groove joint interlocks with the concrete layers of the double-sided composite wall panel, forming a mechanical interlock after the cavity concrete is poured, enhancing overall integrity. The joint also creates a drainage slope or water-retaining edge, preventing rainwater from flowing back to the wall joints. The upper part lacks a tongue and groove joint, which is necessary for coordinating the upper molding with door and window frames or curtain walls, facilitating on-site position adjustments. At the same time, avoid redundancy in wall panel production: if tongue and groove are set at both the top and bottom, the cost of wall panel molds and the difficulty of production will increase, but the benefits will be limited.

[0042] The installation process of the assembled window sill trim in this utility model has the following characteristics:

[0043] 1) It solves the problem that double-sided laminated (sandwich insulation) wall panels cannot be made into protruding facade designs;

[0044] 2) The unit-type installation method ensures that the lines are formed in one go, resulting in good overall integrity. Various types of lines can be made using molds.

[0045] 3) The bottom of the double-sided laminated (sandwich insulation) wall panel is equipped with a tongue and groove joint, which can be used for unitized linear load-bearing and has good stability;

[0046] 4) The moldings are installed in one go, resulting in high installation efficiency and reducing the need for seam finishing.

[0047] 5) Materials for moldings can include wood, concrete, foamed ceramics, fiberboard, UHPC, etc., to meet the requirements of building facades;

[0048] 6) The moldings are installed on-site, which does not affect the efficient production and construction process of the double-sided composite (sandwich insulation) wall panels;

[0049] Construction procedures:

[0050] S1. Double-sided laminated (sandwich insulation) wall panels are installed in place;

[0051] S2. Place two leveling shims at the tongue and groove of the wall panel, adjust the level to the correct position, install the unit-type molding, and tighten it with the connecting screws 8 after it is in place.

[0052] S3. Pour the double-sided composite (sandwich insulation) wall panel cavity concrete, and after solidification, cut off the exposed part of the connecting bolt 8 to complete the installation.

[0053] The above are preferred embodiments of the present utility model. Those skilled in the art can make various changes or improvements based on this. Without departing from the overall concept of the present utility model, these changes or improvements should all fall within the scope of protection claimed by the present utility model.

Claims

1. A unitized window sill molding installation structure based on double-sided composite wall panels, characterized in that: Includes upper unit-type lines (2), lower unit-type lines (6), connecting screws (8), and double-sided composite wall panels (1); The double-sided composite wall panel (1) has a first reserved PVC hole (5) at the upper and lower edges of the reserved window opening; The upper unit line (2) and the lower unit line (6) are each provided with a second reserved PVC hole (7) that is connected to the first reserved PVC hole; The connecting screw (8) passes through the first reserved PVC hole (5) and the second reserved PVC hole (7) and fixes the upper unit line (2) and the lower unit line (6) to the double-sided composite wall panel (1) respectively by means of nuts.

2. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: A pre-reserved tongue and groove (4) is provided at the inner leaf plate of the lower edge of the reserved window opening of the double-sided composite wall panel. The pre-reserved tongue and groove (4) is located above the first reserved PVC hole (5). The lower unit type line (6) itself can be partially embedded in the pre-reserved tongue and groove (4).

3. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 2, characterized in that: No tongue and groove joint is provided at the inner leaf plate of the upper edge of the reserved window opening of the double-sided composite wall panel.

4. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: The double-sided composite wall panel (1) is a double-sided composite sandwich insulation wall panel. The insulation layer is located in the inner cavity next to the inner leaf plate. The insulation layer has a notch near the window opening to avoid the connecting screw (8).

5. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 2, characterized in that: The reserved tongue and groove (4) has a rectangular structure.

6. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: The lower edge of the upper unit line (2) is flush with the window opening, and the upper edge of the lower unit line (6) is flush with the window opening.

7. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: The connecting screw (8) is a pull-type screw with threads at both ends.

8. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: The first reserved PVC hole (5) and the corresponding connecting screw (8) are provided in three sets and are evenly arranged; the second reserved PVC hole (7) and the corresponding connecting screw (8) are also provided in three sets and are evenly arranged.

9. The unitized window sill molding installation structure based on double-sided composite wall panels as described in claim 1, characterized in that: The upper unit line (2) and the lower unit line (6) are made of one of the following materials: wood, concrete, foamed ceramics, fiberboard, or UHPC.

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