Integrated window frame water deflector window sill structure

Abstract

The utility model provides a kind of integrated window frame water flashing board window under mouth structure, including wall body and the integrated water flashing window frame of being set at wall body door and window hole place, wherein: integrated water flashing window frame includes window frame body and is set on the water flashing board of outer windowsill, the inner end of water flashing board is integrally prefabricated with the outer side wall of window frame body lower end, outer end is arranged obliquely downward and is seamlessly connected with the outer side wall of wall body.The utility model is integrally prefabricated by the structural design of integrated water flashing window frame, realizes physical seamless connection, eliminates rainwater penetration path, avoids the leakage risk caused by multiple component joints, reduces thermal bridge effect and simplifies installation procedure simultaneously, with the advantages of improving waterproof performance, enhancing thermal insulation effect and improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to an integrated window frame drip edge structure for the bottom edge of a window. Background Technology

[0002] In construction engineering, waterproofing the connection between door and window openings and the wall has always been a challenging aspect of construction. Traditional construction methods typically employ a split installation process: first, a metal subframe is pre-embedded to adjust the installation gaps between doors and windows; then, waterproof mortar is used to fill the gaps in layers; and finally, polyurethane foam and weather-resistant sealant are used for sealing. This process has significant technical drawbacks: the foam is susceptible to shrinkage and cracking due to environmental aging, leading to seal failure; and the joints formed by multiple processes become potential sources of water seepage, especially in external insulation systems where leakage is more likely to occur at the junction of the insulation material and the door / window frame.

[0003] While existing technologies offer improved drip edge systems, such as those employing modular installation structures that allow for detachable installation of the drip edge onto window frames, these still require on-site assembly of multiple metal connectors, resulting in numerous seams. This construction not only increases the risk of rainwater infiltration but also heavily relies on the skill level of the installers, making it prone to issues like substandard drainage slopes or inadequate seam sealing due to assembly deviations. Furthermore, the metal connectors used in modular structures can create thermal bridging effects, impacting the overall building insulation performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an integrated window frame drip edge structure for the bottom of the window, which addresses the shortcomings of the existing technology, and has the advantages of solving the leakage problems caused by the traditional split installation process, reducing thermal bridging effect, and improving construction efficiency.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] An integrated window frame and drip edge structure includes a wall and an integrated drip edge window frame disposed at the door and window opening on the wall. The integrated drip edge window frame includes a window frame body and a drip edge disposed on the outer windowsill. The inner end of the drip edge is integrally pre-formed with the outer wall of the lower end of the window frame body, and the outer end is inclined downward and seamlessly connected to the outer wall of the wall.

[0007] Preferably, a base wall plaster layer is provided on the outer wall and the outer windowsill at the top of the wall, and the thickness of the base wall plaster layer is 10-25mm.

[0008] Preferably, a first insulation layer is provided on the outer wall of the bonding mortar layer, and a second insulation layer is provided on the base wall plaster layer of the outer window sill at the top of the wall.

[0009] Preferably, both the first and second insulation layers are made of glazed foamed ceramic insulation boards with a thickness of 30-60mm.

[0010] Preferably, the drip edge is composed of an integrally formed drip edge body, a drip plate, and a fastening plate, wherein:

[0011] The drip edge of the drip edge body has a slope of 2-5%, and its inner end is integrally connected to the outer wall of the lower end of the window frame body. The drip edge of the outer end is provided with the drip plate arranged downwards.

[0012] The fastening plate has an L-shaped cross-section, with one end connected upwards to the drip edge body.

[0013] Preferably, a sealing element is provided between the inner wall of the lower end of the drip plate and the inner first insulation layer, which is a combination of polyethylene foam rod and silicone weather-resistant sealant.

[0014] Preferably, a glass mounting base is snapped onto the top of the window frame body, and a glass unit is mounted on the glass mounting base.

[0015] Preferably, the bottom of the window frame body is provided with a mounting base, which is installed on the windowsill of the door and window opening in the wall by means of several expansion bolts.

[0016] Preferably, the window frame body and the drip edge are prefabricated as a whole using non-metallic composite materials.

[0017] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0018] The integrated window frame drip edge structure provided by this utility model, through the integrated drip edge window frame structure design, integrates the drip edge and the window frame body into one prefabrication, achieving a physical seamless connection, eliminating rainwater seepage paths, avoiding leakage risks caused by multiple component joints, reducing thermal bridging effect and simplifying installation procedures, and has the advantages of improving waterproof performance, enhancing thermal insulation effect and improving construction efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation structure of the integrated window frame drip edge window bottom structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the structural connection between the window frame body (210) and the drip edge in the integrated window frame and drip edge window bottom structure of this utility model;

[0021] Figure 3 This utility model Figure 2 A partially enlarged structural diagram of part A in the integrated window frame and drip edge window bottom structure shown;

[0022] The accompanying figures are labeled as follows:

[0023] 100-Wall, 101-Base wall plaster layer, 102-Adhesive mortar layer, 103-First insulation layer, 104-Second insulation layer; 200-Integrated drip edge window frame, 201-Sealing element, 210-Window frame body, 220-Drip edge plate, 221-Drip edge body, 222-Drip plate, 223-Fastening plate; 230-Glass mounting base, 240-Glass unit, 250-Mounting base, 260-Expansion bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In some embodiments, such as Figure 1 and Figure 2 As shown, this application proposes an integrated window frame and drip edge structure for the lower edge of a window, including a wall 100 and an integrated drip edge window frame 200 disposed at the door / window opening on the wall 100. The integrated drip edge window frame 200 includes a window frame body 210 and a drip edge 220 disposed on the outer windowsill. The inner end of the drip edge 220 is integrally prefabricated with the outer wall at the lower end of the window frame body 210, and the outer end is inclined downward and seamlessly connected to the outer wall of the wall 100.

[0027] The integrated drip edge window frame 200 refers to the integral component formed in one piece at the factory by molding the window frame body 210 and the drip edge 220 using a mold. This can be achieved using metal extrusion molding or composite material molding processes, eliminating seams generated during on-site assembly. The outer wall refers to the mechanical locking structure at the lower end of the window frame body, which can be achieved using bending or casting processes, forming a seamless, integrated physical connection with the drip edge without fasteners. The downwardly sloping outer end of the drip edge 220 forms a continuous drainage slope, which can be achieved by pre-setting the angle in the mold, with the slope controlled between 2-5%. Seamless connection refers to the joint method where there is no visible gap between the outer end of the drip edge 220 and the contact surface with the wall 100, which can be achieved using pre-embedded positioning pins and elastic sealing materials.

[0028] Specifically, the window frame body 210 and the drip edge 220 are molded into an integral structure during the prefabrication stage. A mechanical latch is formed at the bottom of the window frame body on the outer side wall, creating a seamless connection between the side wall and the inner end of the drip edge. The outer end of the drip edge 210 extends to the outer surface of the wall 100 at a preset angle and downwards, achieving a seamless connection with the wall 100 through precise prefabrication dimensional control. During installation, the integral module is fixed to the door and window openings using a positioning device, and the continuous slope of the outer end of the drip edge 220 forms an effective drainage channel. Sealing materials can be integrated into the connection interface during prefabrication to ensure the waterproof performance of the contact surface between the wall 100 and the drip edge 220.

[0029] Compared to existing technologies, traditional split-type drip edges require on-site installation of connectors and filling with sealant, creating multiple potential leakage points; while this solution achieves a seamless, integrated structure through factory prefabrication. Existing technologies use metal adapters to fix the drip edges, creating a thermal bridging effect; this solution eliminates additional connectors through integrated molding. Traditional construction requires multiple steps to adjust the drainage slope; this solution ensures accurate drainage path through prefabrication angle control.

[0030] Through the above technical solutions, this application effectively eliminates the risk of leakage at the joints of door and window openings, blocks the thermal bridge conduction path, and simplifies the on-site installation process. The overall structure is prefabricated in the factory to ensure connection accuracy, the inclined drip edge forms a continuous drainage surface to prevent water seepage, and the integrated design avoids the use of easily aging on-site filling materials, improving structural durability and waterproof reliability.

[0031] In some of these embodiments, such as Figure 1 As shown, this application further proposes to provide a base wall plaster layer 101 on the outer wall of the wall 100 and the outer windowsill at the top, with a thickness of 10-25 mm; preferably, the thickness of the base wall plaster layer 101 on the outer wall of the wall 100 is 20 mm, and the base wall plaster layer 101 on the outer windowsill at the top of the wall 100 is arranged at a slope to correspond to the slope of the drip edge 220. The base wall plaster layer 101 refers to a leveling structural layer covering the concrete or masonry surface, specifically using cement mortar or polymer-modified mortar materials, and its function is to provide a smooth construction base for the subsequent waterproofing and insulation layers.

[0032] In some of these embodiments, such as Figure 1As shown, an adhesive mortar layer 102 is provided on the outer side of the base wall plaster layer 101 on the outer side of the wall 100. The thickness of the adhesive mortar layer 102 is 3-8mm; preferably, the thickness of the adhesive mortar layer 102 is 6mm. The adhesive mortar layer 102 is an adhesive layer made by combining cement-based materials and polymer emulsions. It can be achieved using a thin-layer application process. Its function is to provide a smooth and stable adhesion surface for the first insulation layer 103, preventing the insulation layer from delaminating due to unevenness of the base layer.

[0033] In some of these embodiments, such as Figure 2 As shown, this application further proposes that a first insulation layer 103 be provided on the outer wall of the bonding mortar layer 102, and a second insulation layer 104 be provided on the base wall plaster layer 101 of the outer window sill at the top of the wall 100. The first insulation layer 103 refers to a continuous insulation structure covering the vertical outer surface of the wall 100, such as using board-shaped insulation material, which effectively reduces the thermal bridging effect by blocking the heat transfer path between the wall and the external environment. The second insulation layer 104 refers to an independent insulation structure set on the horizontal plane of the window sill, such as using a board of the same material as the first insulation layer, which strengthens the insulation continuity at the window sill and prevents localized heat loss caused by rainwater infiltration.

[0034] Specifically, the first insulation layer 103 forms a stable connection with the wall sidewall through the bonding mortar layer 102, ensuring the continuity of insulation in the vertical wall direction; the second insulation layer 104 is laid independently on the window sill plaster layer, forming a spatially staggered arrangement with the first insulation layer 103, covering the weak points of thermal bridges in the horizontal window sill area. The two layers construct a continuous insulation interface through different dimensional coverage methods, avoiding local heat loss caused by the interruption of a single insulation layer. After the first insulation layer 103 is combined with the bonding mortar layer 102, it further eliminates the gap thermal bridges at the junction of the window frame and the wall; the second insulation layer 104 achieves a smooth transition of the insulation layer at the corner by compensating for the thickness difference of the window sill structure.

[0035] In some of these embodiments, such as Figure 1 As shown, this application further proposes that both the first insulation layer 103 and the second insulation layer 104 are made of commercially available conventional glazed foamed ceramic insulation boards with a thickness of 30-60mm; preferably, the thickness of the first insulation layer 103 and the second insulation layer 104 is 50mm. The top end of the first insulation layer 103 is connected to the outer end of the second insulation layer 104 to ensure the continuity of insulation.

[0036] In some of these embodiments, such as Figure 2 and Figure 3As shown, to enhance the stability and wind pressure resistance of the window's lower structure, this application further proposes a prefabricated, integrally formed drip edge 220 consisting of a drip edge 221, a drip plate 222, and a fastening plate 223. The inner end of the drip edge 221 is connected to the outer wall of the lower end of the window frame 210, and the drip plate 222 is arranged downwards along the lower edge of the outer end. The fastening plate 230 is L-shaped with one end connected upwards to the drip edge 221, and the drip slope of the drip edge 221 is 2-5%. The prefabricated and integrated fastening plate 223 design avoids the defect of the drip edge loosening easily in strong winds and rain, and the integral structure improves the wind pressure resistance to ≥3.5kPa, while the wind pressure resistance of traditional split-type drip edges is ≤2.0kPa.

[0037] The drip edge 221 refers to a plate-like structure with a drainage slope, connected to the window frame 210 at its inner end and extending to the outer windowsill at its outer end. Specifically, it can be made by stamping and bending metal sheets to achieve a preset slope. This structure uses slope design to quickly guide rainwater. The drip plate 222 refers to the vertical extension set at the lower edge of the outer end of the drip edge 221. Specifically, it can be made by continuous bending of the same material as the drip edge 221. This structure extends downwards to form a physical water-blocking line, preventing rainwater from flowing back along the bottom surface of the drip plate.

[0038] Fastening plate 223 refers to a connecting component with an L-shaped cross-section. Specifically, it can be formed by mold casting to create a continuous connection with the drip edge body. This structure forms a mechanical interlocking effect through the L-shaped folded edge, enhancing the connection strength between the drip edge 210 and the window frame body 210. One-piece molding means that the drip edge body 221, drip plate 222, and fastening plate 223 are formed into a seamless whole in the factory through continuous processing. Specifically, it can be formed by extrusion molding or stamping and welding processes. This processing method eliminates the assembly gap between different components.

[0039] Specifically, when the drip edge 221 extends outward at a preset slope, its inner end forms a continuous transition connection with the hook structure of the window frame body 210, and its outer end forms a downward guiding surface through the drip plate 222. The L-shaped fold of the fastening plate 223 extends upward and forms a closed section with the drip edge 221, forming multi-point contact support with the wall structure through this closed section during window frame installation.

[0040] Through the above technical solution, this application effectively eliminates the seepage channels at the connection between the traditional split-type drip edge and the window frame, solving the leakage risk caused by multiple joints. The one-piece molded structure avoids on-site splicing procedures, reducing the reliance on the precision of construction workers. The closed cross-section formed by the L-shaped fastening plate 223 enhances the rigidity of the connection node, preventing structural deformation under wind and rain loads. Factory prefabrication ensures precise and controllable drip edge slope, guaranteeing the reliability of the drainage path.

[0041] In some of these embodiments, such as Figure 1 and Figure 2 As shown, this application further proposes to provide a sealing element 201 between the inner wall of the lower end of the drip plate 222 and the inner first insulation layer 103. The sealing element 201 adopts a structure of polyethylene foam rod and silicone weather-resistant sealant.

[0042] The sealing element 201 refers to a composite sealing structure installed at the interface between the drip plate 222 and the first insulation layer 103. Specifically, it can be achieved by combining pre-filled cylindrical foam rods with a surface-coated liquid sealant, used to fill the interface gaps and form a double waterproof barrier. The polyethylene foam rod is an elastic filling material with a closed-cell structure, specifically implemented using pre-formed cylindrical parts with a diameter of 5-12 mm. It compensates for interface deformation through compression rebound characteristics and forms a physical waterproof layer. The silicone weather-resistant sealant is a sealing material with UV resistance and high bonding strength, specifically implemented using a single-component room-temperature curing colloid, forming a permanent waterproof sealing layer through continuous coverage.

[0043] Specifically, during installation, polyethylene foam rods are pressed into a pre-defined gap between the drip edge 222 and the first insulation layer 103, with their compression rate controlled within the range of 20%-40% to maintain elastic support. Subsequently, silicone weather-resistant sealant is applied in a continuous strip to the surface of the foam rods and adjacent interface areas, forming a seamless sealing layer after curing. The combination of these two materials allows the foam rods to absorb displacement stress through elastic deformation when subjected to temperature deformation at the interface area, preventing the sealant layer from cracking; simultaneously, the sealant layer blocks external moisture penetration paths, forming a synergistic waterproofing mechanism.

[0044] Through the above technical solution, this application effectively blocks the path of rainwater penetration along the interface between the drip plate 222 and the first insulation layer 103, maintains stable waterproof performance during long-term use, and reduces maintenance needs caused by material aging.

[0045] In some of these embodiments, such as Figure 1 and Figure 2 As shown, this application further proposes a glass mounting base 230 snap-fitted onto the top of the window frame body 210, and a glass unit 240 mounted on the glass mounting base 230. The snap-fit ​​mechanism refers to a mechanical interlocking connection achieved through a prefabricated concave-convex structure, specifically using a dovetail groove of an aluminum alloy profile in conjunction with a latch, achieving positioning and fixation without the need for external fasteners. The glass mounting base 230 is a dedicated support component for carrying the glass unit, specifically employing a U-shaped groove structure with a rubber sealing strip 231, with a buffer pad inside the groove to accommodate glass units 240 of different thicknesses.

[0046] Specifically, a continuous snap-fit ​​track is machined on the top of the window frame body 210, and a matching snap-fit ​​protrusion is provided at the corresponding position on the bottom of the glass mounting base 230. During installation, the protrusion is inserted horizontally to lock into the track. The pre-tightening force generated by the snap-fit ​​connection ensures a tight fit between the mounting base and the window frame, eliminating the drilling gaps required for traditional bolt fixing. After the glass unit 240 is embedded in the U-shaped groove of the mounting base, the sealing strip 231 inside the groove expands under pressure to fill the gaps at the edge of the glass, forming a continuous waterproof barrier. Installation does not require high-altitude caulking or repeated adjustments; a single person can complete the operation.

[0047] In some of these embodiments, such as Figure 1 and Figure 2 As shown, this application further proposes that the bottom of the window frame body 210 is provided with a mounting base 250, which is installed on the windowsill of the wall door and window opening by a number of expansion bolts 260. The mounting base 250 refers to the load-bearing structure fixed to the windowsill of the wall door and window opening, which can be implemented using a metal substrate or precast concrete block, and is used to evenly transfer the gravity load of the window frame body 210 to the wall structure. The expansion bolts can be galvanized carbon steel bolts or nylon sleeve bolts.

[0048] Specifically, the mounting base 250 is pre-positioned on the windowsill surface of the door / window opening in the wall, and the threaded portion of the expansion bolt 260 is embedded into the wall through drilling. When the bolt is tightened, the expansion sleeve generates radial expansion force within the hole, causing the outer wall of the sleeve to mechanically engage with the wall hole wall. This engagement force can resist the shear and pull-out forces caused by wind loads and self-weight loads on the window frame system, thereby preventing displacement or loosening between the window frame and the wall. The planar dimensions of the mounting base 250 are designed to cover the bottom contact area of ​​the window frame, ensuring that the weight of the window frame is distributed to the windowsill structure through the base, preventing localized stress concentration that could lead to windowsill cracking.

[0049] Through the above technical solution, this application achieves a highly reliable mechanical connection between the integrated drip edge window frame 200 and the wall 100, solving the problem of traditional adhesive fixing methods being susceptible to environmental corrosion. The combined structure of the mounting base 250 and expansion bolts 260 effectively distributes the load, preventing the window frame from shifting due to long-term stress, thereby avoiding sealing failure and rainwater leakage caused by displacement. This solution is applicable to various wall materials such as concrete, aerated concrete blocks, and hollow bricks, improving the adaptability of the window frame system in different building scenarios.

[0050] In some embodiments, this application further proposes that the window frame body 210 and the drip edge 220 be integrally prefabricated using non-metallic composite materials. The non-metallic composite material can be glass fiber reinforced polymer or fiber reinforced composite material (FRC), integrally prefabricated into a window frame-drip edge unit. Combined with thermal break design (such as embedded nylon 66 thermal insulation strips), the overall thermal conductivity can be reduced by ≥30%. Referring to Suzhou's ultra-low energy consumption standards, the overall window energy efficiency coefficient can be increased by 12-18%. Integral prefabrication refers to manufacturing the window frame body 210 and the drip edge 220 into a continuous integral structure through die extrusion or stamping processes. Specifically, this can be achieved using continuous die stamping or profile extrusion followed by bending, resulting in a seamless connection between the lower outer wall of the window frame body 210 and the inner end of the drip edge 220.

[0051] Specifically, the window frame body 210 and the drip edge 220 are formed in one piece at the factory using metal profile extrusion or stamping processes, eliminating any seams between them. The outer wall at the lower end of the window frame body 210 is directly connected to the inner end of the drip edge 220 without the need for additional bolts or welding. The outer end of the drip edge 220, through its inclined design and seamless connection, blocks the path of rainwater infiltration. Because no separate metal connectors are used, the thermal bridging effect is completely eliminated, and the heat transfer path between the window frame body 210 and the drip edge 220 is physically isolated.

[0052] Compared to existing technologies, traditional split-type flashing panels require steel adapters or U-shaped grooves for fixing, resulting in numerous seams that rely on on-site sealant filling, posing a risk of leakage. This solution, however, eliminates seams directly through an integrated molding process, eliminating the need for on-site sealing and avoiding thermal bridges formed by metal connectors, significantly improving structural sealing and thermal performance.

[0053] Through the above technical solution, this application solves the leakage problem caused by the joint between the split-type drip edge and the window frame, while also blocking the thermal bridging effect caused by metal connectors, thus improving the overall sealing and energy-saving performance of the structure. The integrated molding process simplifies the installation process, reduces reliance on manual operation during on-site construction, and ensures the long-term stability and reliability of the structure.

[0054] In summary, by adopting the integrated window frame and drip edge structure provided in this application, the existing on-site construction process requiring seven steps (such as window frame positioning, drip edge drilling, sealant application, and reinforcement installation) can be simplified to a single hoisting operation, reducing the construction period by 70%. Taking a 20-story residential building as an example, traditional installation requires 120 man-hours, while the solution in this application requires only 36 man-hours, achieving the goal of streamlining the process. Furthermore, the window frame body 210 and drip edge 220 of this application are prefabricated in the factory using molded production, which ensures that the drip edge slope error is ≤0.5°, while the on-site construction slope error is ≥2°, effectively ensuring drainage efficiency. Moreover, the flatness deviation between the window frame and the drip edge can be controlled to ≤1mm, eliminating water accumulation problems caused by misalignment and improving installation accuracy and construction efficiency.

[0055] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0056] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0057] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated window frame drip edge structure for the bottom edge of a window, characterized in that, The wall (100) includes an integral drip edge window frame (200) installed at the door and window openings on the wall (100), wherein: the integral drip edge window frame (200) includes a window frame body (210) and a drip edge plate (220) installed on the outer window sill, the inner end of the drip edge plate (220) is integrally pre-formed with the outer wall of the lower end of the window frame body (210), and the outer end is inclined downward and seamlessly connected with the outer wall of the wall (100).

2. The integrated window frame drip edge structure for the bottom edge of the window according to claim 1, characterized in that, The outer wall and the outer windowsill at the top of the wall (100) are provided with a base wall plaster layer (101), and the thickness of the base wall plaster layer (101) is 10-25mm.

3. The integrated window frame drip edge structure for the bottom edge of the window according to claim 2, characterized in that, An adhesive mortar layer (102) is provided on the outer side of the plaster layer (101) of the base wall on the outer side of the wall (100), and the thickness of the adhesive mortar layer (102) is 3-8mm.

4. The integrated window frame drip edge structure for the bottom edge of the window according to claim 3, characterized in that, The outer wall of the bonding mortar layer (102) is provided with a first insulation layer (103), and the outer wall of the top of the wall (100) is provided with a second insulation layer (104) on the base wall plaster layer (101).

5. The integrated window frame drip edge structure according to claim 1, characterized in that, The drip edge (220) is composed of an integrally formed drip edge body (221), a drip plate (222), and a fastening plate (223), wherein: The slope of the drip edge body (221) is 2-5%, and its inner end is integrally connected to the outer side wall of the lower end of the window frame body (210). The drip plate (222) is arranged downward at the lower edge of the outer end. The fastening plate (223) has an L-shaped cross-section, with one end connected upwards to the water-drip body (221).

6. The integrated window frame drip edge structure according to claim 5, characterized in that, A sealing element (201) is provided between the inner wall of the lower end of the drip plate (222) and the first insulation layer (103) on the inner side, which is a combination of polyethylene foam rod and silicone weather-resistant sealant.

7. The integrated window frame drip edge structure according to claim 1, characterized in that, The top of the window frame body (210) is provided with a glass mounting base (230), and a glass unit (240) is provided on the glass mounting base (230).

8. The integrated window frame drip edge structure according to claim 1, characterized in that, The bottom of the window frame body (210) is provided with a mounting base (250), which is installed on the windowsill of the door and window opening of the wall (100) by a number of expansion bolts (260).

9. The integrated window frame drip edge structure for the bottom edge of the window according to claim 1, characterized in that, The window frame body (210) and the drip edge (220) are prefabricated as a whole using non-metallic composite materials.

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