Prefabricated PC external wall panel window lower opening waterproof structure
By installing aluminum waterproof window sill panels at the bottom of the window and welding waterproof rolls, combining polyurethane foam rods and polyurethane foam glue seals, the problem of waterproofing and prone to aging and cracking in traditional windows is solved, achieving better waterproof and anti-corrosion effects.
Patent Information
- Application Number
- CN202422265970.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Traditional window waterproofing methods are prone to aging and cracking, resulting in the gradual failure of waterproofing performance, causing water leakage problems, affecting building quality and living experience.
It adopts aluminum waterproof window sill board, welded waterproof and curled edges, combined with polyurethane foam rod and polyurethane foam glue seal, adopts the hydrophobic principle, has better waterproof effect and excellent corrosion resistance.
Effectively solve the problems of water leakage in the window itself, water leakage between windows and windows, and water leakage in the vertical frame of the window, and improve the waterproof performance and corrosion resistance of the building.
Smart Images
Figure CN223177383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of prefabricated steel structure PC exterior wall panel equipment, and particularly relates to a waterproof structure at the lower opening of a window of a prefabricated PC exterior wall panel. Background Technique
[0002] In modern architectural design, windows, as an indispensable part of buildings, not only perform multiple functions such as shielding against wind and rain, heat insulation, sound insulation, and lighting and ventilation, but also directly affect the overall aesthetics and living comfort of the building. With the continuous progress of building technology and the increasing environmental protection requirements, prefabricated buildings have gradually become the mainstream trend due to their high efficiency, energy conservation, and environmental friendliness. However, this trend also poses new challenges to waterproof technology. In particular, the waterproof treatment of windows has become a key link in ensuring building quality and living experience.
[0003] Traditional window waterproofing methods mainly rely on the use of sealant, which forms a waterproof barrier in the gap between the window and the wall. However, this method has obvious drawbacks: the sealant is prone to aging and cracking, resulting in the gradual failure of the waterproof performance and thus causing window leakage problems. Once the leakage problem occurs, it not only affects the daily life of the occupants but may also cause damage to the interior decoration and building structure.
[0004] Analyzing the reasons for window leakage in depth, it mainly includes, but is not limited to: non-standard operations during window manufacturing, such as the sealant strip not matching the glass; negligence during window installation, such as uneven application of sealant or incomplete coverage of the gap; improper treatment of the gap between the window and the exterior wall, such as too large a gap, improper selection of filling materials or incomplete filling; and damage to the window waterproof layer during construction or use.
[0005] In view of the above problems, there is an urgent need in the market for a more reliable and durable window waterproofing solution. Against this background, a waterproof structure at the lower opening of a window of a prefabricated PC exterior wall panel is proposed, aiming to fundamentally solve the window leakage problem and improve the overall waterproof performance of the building. Content of the Utility Model
[0006] In order to solve the above problems, the utility model provides a waterproof structure at the lower opening of a window of a prefabricated PC exterior wall panel. This waterproof structure at the lower opening of a window of a prefabricated PC exterior wall panel uses an aluminum waterproof window sill plate and welds a waterproof upward curl, with better waterproof effect and excellent anti-corrosion performance. It uses the hydrophobic principle for waterproofing, and can solve problems such as window self-leakage, leakage due to poor sealing between the window opening and the window, and leakage of the window vertical frame.
[0007] The technical solution of the utility model is as follows:
[0008] A waterproof structure for the lower opening of a window in a precast PC exterior wall panel, comprising a window opening reserved in the precast PC exterior wall panel, a window, and a waterproof window sill plate. The precast PC exterior wall panel is composed of an outer leaf panel, a thermal insulation layer, and an inner leaf panel from outside to inside. The window is installed between the outer leaf panel and the inner leaf panel. The waterproof window sill plate is fixedly installed between the window opening and the bottom of the window. The waterproof window sill plate is inclined downward from inside to outside. The waterproof window sill plate is fixedly connected to the window opening in a sealed manner, and the waterproof window sill plate is fixedly connected to the inner side of the bottom of the window in a sealed manner. There is a hollow between the waterproof window sill plate and the outer side of the bottom of the window.
[0009] The waterproof window sill plate is an aluminum plate with a thickness of 2 mm.
[0010] At the outermost bottom end of the outer side of the waterproof window sill plate, a waterproof side vertical upward curl in the shape of an "L" is fixedly provided and curled inward.
[0011] The inclination angle of the waterproof window sill plate is 5° - 10°.
[0012] Between the waterproof window sill plate and the inner leaf panel at the window opening, it is first sealed with a polyurethane foam rod and then sealed with polyurethane foam adhesive.
[0013] Between the waterproof window sill plate and the inner side of the bottom of the window, it is sealed with structural adhesive.
[0014] The beneficial effects of the present utility model are as follows:
[0015] A waterproof structure for the lower opening of a window in a precast PC exterior wall panel disclosed by the present utility model. This waterproof structure for the lower opening of a window in a precast PC exterior wall panel uses an aluminum alloy waterproof window sill plate and welds a waterproof upward curl, with better waterproof effect and excellent anti-corrosion performance. It uses the hydrophobic principle for waterproofing, and can solve problems such as water leakage of the window itself, water leakage due to poor sealing between the window opening and the window, and water leakage at the window vertical frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear and understandable to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model.
[0017] In the drawings:
[0018] Figure 1 is a schematic structural diagram of a waterproof structure for the lower opening of a window in a precast PC exterior wall panel according to an embodiment of the present utility model;
[0019] Figure 2 is a schematic structural diagram of the waterproof window sill plate of a waterproof structure for the lower opening of a window in a precast PC exterior wall panel according to an embodiment of the present utility model;
[0020] The components represented by the reference numerals in the drawings are:
[0021] The utility model: 1. Outer leaf plate, 2. Waterproof window sill plate, 3. Thermal insulation layer, 4. Window, 5. Structural adhesive, 6. Polyurethane foam adhesive, 7. Polyurethane foam rod, 8. Inner leaf plate. Specific implementation mode
[0022] Example 1, as Figure 1 shown, the waterproof structure at the lower opening of the window of the precast PC exterior wall panel includes a window opening reserved in the precast PC exterior wall panel, a window 4 and a waterproof window sill plate 2. The precast PC exterior wall panel is composed of an outer leaf plate 1, a thermal insulation layer 3 and an inner leaf plate 8 from outside to inside in sequence. The window 4 is installed between the outer leaf plate 1 and the inner leaf plate 8. It is characterized in that the waterproof window sill plate 2 is fixedly installed between the window opening and the bottom of the window 4. The waterproof window sill plate 2 is inclined downward from inside to outside. The waterproof window sill plate 2 is fixedly connected with the window opening in a sealed manner. The waterproof window sill plate 2 is fixedly connected with the inner side of the bottom of the window 4 in a sealed manner. There is a hollow between the waterproof window sill plate 2 and the outer side of the bottom of the window 4.
[0023] The waterproof window sill plate 2 is an aluminum plate with a thickness of 2 mm.
[0024] At the outermost bottom end of the outer side of the waterproof window sill plate 2, a waterproof side vertical upward curl in the shape of an "L" curled inward is fixedly arranged.
[0025] The inclination angle of the waterproof window sill plate 2 is 5° - 10°. As Figure 2 shown, in this embodiment, it is 6°, and any angle within the range of 5° - 10° can also be selected.
[0026] Between the waterproof window sill plate 2 and the inner leaf plate 8 at the window opening, it is first sealed with a polyurethane foam rod 7 and then sealed with a polyurethane foam adhesive 6.
[0027] Between the waterproof window sill plate 2 and the inner side of the bottom of the window 4, it is sealed with a structural adhesive 5.
[0028] Example 2, this precast PC exterior wall panel window lower opening waterproof structure relates to the technical field of "assembled steel structure + PC" exterior wall panel, and particularly relates to a precast PC exterior wall panel window lower opening waterproof structure.
[0029] When the precast prestressed concrete exterior wall panel is precast, a window opening is reserved. After the precast prestressed concrete exterior wall panel is transported to the construction site and hoisted and installed, the window is installed. The precast PC exterior wall panel consists of a 60mm concrete outer leaf panel, a thermal insulation layer, and a 60mm concrete inner leaf panel. The window is installed between the inner and outer concrete leaf panels and covers the thermal insulation layer. The aluminum alloy waterproof window sill board at the lower opening of the window is installed on the inner and outer concrete leaf panels at the lower opening of the window, sandwiched between the window and the inner and outer concrete leaf panels. The space between the aluminum alloy window sill board and the inner concrete leaf panel is sealed with polyurethane foam adhesive, and the space between the aluminum alloy window sill board and the inner side of the lower opening of the window is sealed with structural adhesive. The space between the aluminum alloy window sill board and the outer side of the lower opening of the window is hollowed out for drainage.
[0030] The precast PC exterior wall panel includes an outer leaf panel 1, a thermal insulation layer 3, and an inner leaf panel 8. When precasting, a window opening for window 4 is reserved. After the precast prestressed concrete exterior wall panel is transported to the construction site and hoisted and installed, window 4 is installed. Window 4 is installed between inner leaf panel 8 and outer leaf panel 1 and covers thermal insulation layer 3. The aluminum alloy waterproof window sill board 2 at the lower opening of the window is installed below window 4 and on inner leaf panel 8, outer leaf panel 2, and thermal insulation layer 3, sandwiched between window 4, inner leaf panel 8, outer leaf panel 1, and thermal insulation layer 3. The space between aluminum alloy waterproof window sill board 2 and inner leaf panel 8 is sealed with polyurethane foam rod 7 and polyurethane foam adhesive 6. The space between aluminum alloy waterproof window sill board 2 and the inner side of the lower opening of window 4 is sealed with structural adhesive 5. The space between aluminum alloy waterproof window sill board 2 and the outer side of the lower opening of window 4 is hollowed out for drainage.
[0031] The aluminum alloy waterproof window sill board 2 is welded with 2mm thick aluminum alloy and is provided with a waterproof side vertical up-turned edge, having anti-corrosion and waterproof functions.
[0032] The space between aluminum alloy waterproof window sill board 2 and inner leaf panel 8 is sealed with polyurethane foam rod 7 and polyurethane foam adhesive 6.
[0033] The space between aluminum alloy waterproof window sill board 2 and the inner side of the lower opening of window 4 is sealed with structural adhesive 5.
[0034] The space between aluminum alloy waterproof window sill board 2 and the outer side of the lower opening of window 4 is hollowed out for drainage.
[0035] The waterproof structure at the lower opening of the window of the precast PC exterior wall panel uses an aluminum alloy waterproof window sill board with a welded waterproof up-turned edge, having better waterproof effect and excellent anti-corrosion performance, and waterproofs by the hydrophobic principle, which can solve the problems of water leakage of the window itself, water leakage due to poor sealing between the window opening and the window, and water leakage of the window vertical frame.
Claims
1. A waterproof structure at the lower opening of a window in a precast PC exterior wall panel, comprising a window opening reserved in the precast PC exterior wall panel, a window (4) and a waterproof window sill board (2). The precast PC exterior wall panel is sequentially composed of an outer leaf board (1), a thermal insulation layer (3) and an inner leaf board (8) from outside to inside. The window (4) is installed between the outer leaf board (1) and the inner leaf board (8), and is characterized in that, The waterproof window sill plate (2) is fixedly installed between the window opening and the bottom of the window (4). The waterproof window sill plate (2) is inclined downward from inside to outside. The waterproof window sill plate (2) is fixedly connected to the window opening in a sealed manner. The waterproof window sill plate (2) is fixedly connected to the inner side of the bottom of the window (4) in a sealed manner. There is a hollow space between the waterproof window sill plate (2) and the outer side of the bottom of the window (4).
2. The waterproof structure at the lower opening of the window of a precast PC exterior wall panel according to claim 1, characterized in that, The waterproof window sill plate (2) is an aluminum plate with a thickness of 2 mm.
3. A waterproof structure at the lower opening of the window of a precast PC exterior wall panel according to claim 2, characterized in that, At the outermost bottom end of the waterproof window sill plate (2), a waterproof side vertical upward curl in the shape of an "L" curling inward is fixedly provided.
4. A waterproof structure at the lower opening of a window of a prefabricated PC exterior wall panel according to claim 2, characterized in that, The inclination angle of the waterproof window sill plate (2) is 5° - 10°.
5. The waterproof structure at the lower opening of the window of a precast PC exterior wall panel according to claim 2, characterized in that, Between the waterproof window sill plate (2) and the inner leaf plate (8) at the window opening, it is first sealed with a polyurethane foam rod (7) and then sealed with polyurethane foam adhesive (6).
6. The waterproof structure at the lower opening of the window of a precast PC exterior wall panel according to claim 2, characterized in that, Between the waterproof window sill plate (2) and the inner side of the bottom of the window (4), it is sealed with structural adhesive (5).