Hidden type transverse beam drainage system window stile and window sash structure of closed pressing line
The concealed mullion drainage system with enclosed pressure lines, utilizing a stepped structure and composite rubber strip sealing design, solves the problem of mullion window sash drainage channels being easily affected by the environment, achieving automatic rainwater drainage and heat insulation effects, thus improving the safety and comfort of the window.
Patent Information
- Application Number
- CN202520471022.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing mullion window sashes are susceptible to external environmental factors, which can lead to poor drainage. Rainwater can accumulate inside the window frame and seep into the room, affecting wall safety and living comfort.
The design incorporates a concealed horizontal drainage system with enclosed pressure lines. Through a stepped structure of indoor sealed chambers and outdoor equal-pressure drainage chambers, rainwater is automatically discharged by utilizing the difference in gravity and wind pressure. The sealing design using composite rubber strips and foam rubber strips enhances waterproof and windproof performance.
It effectively prevents rainwater backflow, keeps the indoor environment dry, reduces energy loss, improves thermal insulation performance, reduces the risk of window material corrosion, extends service life, and enhances safety and comfort.
Smart Images
Figure CN223964404U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and window technology, specifically, it relates to a concealed horizontal mullion drainage system window mullion and sash structure with a closed pressure line. Background Technology
[0002] A mullion window structure refers to a window design where vertical mullions (also called stiles or mullions) are placed in the middle or on both sides of the window sash, dividing the sash into multiple small panes of glass. This structure is common in traditional architecture, increasing the strength and stability of the window and giving it a richer visual dimension.
[0003] Mullion window sashes typically have drainage holes or channels to drain rainwater accumulated inside the window frame. However, in existing designs, the drainage channels are usually directly exposed on the surface of the mullion. In strong winds, wind pressure may force rainwater into the window frame, increasing drainage difficulties. Furthermore, the drainage channels are constantly exposed to sunlight, rain, and temperature fluctuations, making them prone to aging, deformation, and cracking, thus affecting drainage performance. Poor drainage causes rainwater to accumulate inside the window frame, unable to drain promptly. This accumulated water can seep into the room through gaps between the window frame, sash, and glass, or through aging sections of the weatherstripping, causing dampness, mold, and even dripping water on the walls. Prolonged water seepage can lead to damp walls, peeling paint, mold growth, and corrosion of internal wall materials, and in severe cases, can compromise the structural safety of the wall. Utility Model Content
[0004] In view of this, the present invention provides a concealed horizontal mullion drainage system structure with a closed pressure line, which can solve the problem that the drainage channel of the existing mullion is easily affected by the external environment, resulting in poor drainage.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a concealed horizontal mullion drainage system window sash structure with enclosed pressure lines, comprising a first glass window, a second glass window, a first pressure line, a second pressure line, a window sash, an atrium structure, an equal pressure sealing strip, an indoor sealing cavity, and an outdoor equal pressure drainage cavity. The first and second glass windows are symmetrically arranged. The inner sides of the first and second glass windows are fixedly connected to the first and second pressure lines respectively by composite sealing strips. The first pressure line is fixedly connected to the window sash, and the second pressure line is fixedly connected to the atrium structure. The atrium structure is fixedly connected to the first and second glass windows by composite sealing strips. The window sash is fixedly connected to the atrium structure by composite sealing strips. An equal pressure sealing strip is provided inside the atrium structure, dividing the space between the window sash and the atrium structure into the indoor sealing cavity and the outdoor equal pressure drainage cavity. The lowest point of the indoor sealing cavity is higher than the lowest point of the outdoor equal pressure drainage cavity. The bottom surfaces of the indoor sealing cavity and the outdoor equal pressure drainage cavity have a stepped structure.
[0007] The technical effects of the concealed horizontal mullion drainage system provided by this utility model are as follows: 1. By designing an outdoor equal pressure drainage chamber, a small amount of water can automatically fall downwards under its own weight, and will not be blocked by the water hole due to the pressure of the external wind and the surface tension of the water.
[0008] 2. The stepped design guides rainwater from indoors to outdoors, preventing water accumulation. The principle of higher elevation inside and lower elevation outside ensures smooth drainage and prevents leakage.
[0009] 3. The stepped drainage system can effectively prevent rainwater from flowing back into the room, keeping the room dry even in strong winds and heavy rain.
[0010] 4. The sealed interior cavity forms an air gap, effectively blocking heat transfer between the inside and outside, reducing energy loss, and achieving thermal insulation. It also absorbs and blocks sound waves, reducing noise entering the room and improving living comfort. By controlling indoor humidity, the airtight cavity helps prevent condensation on the inner surface of the window, maintaining its cleanliness and light transmission.
[0011] 5. The outdoor pressure equalization drainage chamber is specifically designed to collect and drain moisture that seeps into the window, preventing moisture from entering the room, protecting the interior structure and decoration, helping to enhance the window's wind pressure resistance, improving the window's safety in severe weather, and by timely draining moisture, the watertight chamber can reduce the risk of window materials becoming damp and corroded, extending the window's service life.
[0012] Based on the above technical solution, the concealed horizontal mullion drainage system window sash structure with enclosed pressure line of this utility model can be further improved as follows:
[0013] The atrium structure includes a mullion frame, a first mullion outer frame, a second mullion outer frame, a heat insulation cavity structure, and a drain outlet. One end of the first mullion outer frame is fixedly connected to the outside of the first glass window by a composite adhesive strip. The other end of the first mullion outer frame is fixedly connected to one end of the second mullion outer frame by a composite adhesive strip. The other end of the second mullion outer frame is fixedly connected to the outside of the second glass window by a composite adhesive strip. The second mullion outer frame has a letter T-shaped structure, and one end of the vertical line of the letter T is slidably installed with the mullion frame.
[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the composite sealing strip is a long-tailed composite EPDM cavity sealing strip, which can form an independent partition cavity between the glass and the outer window frame profile wall. By utilizing the principle of air insulation, it effectively improves the air convection of the original large cavity and improves the thermal insulation performance.
[0015] Furthermore, after the first pressure line is slidably installed with the window sash, it is fixed with a foam strip for linear sealing. After the second pressure line is slidably installed with the mullion frame, it is fixed with a foam strip for linear sealing. The foam strip is an EPDM foam strip.
[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: using elastic EPDM foam strips for linear sealing, the model is stable and not prone to air or water leakage after the pressure line installation is completed.
[0017] Furthermore, the lower end of the window sash is fixedly connected to the mullion frame by a composite adhesive strip.
[0018] Furthermore, the heat insulation cavity structure is slidably installed between the window sash and the outer frame of the first mullion, and the heat insulation cavity structure is filled with heat insulation cotton.
[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: Insulation cotton or polyurethane foam can effectively prevent air convection within the cavity, significantly reducing heat exchange between indoors and outdoors and improving the energy-saving index of the materials. Isolating indoor and outdoor heat transfer makes the entire door and window system more energy-efficient, meeting the building's energy-saving requirement of a K-value of less than 1.8.
[0020] Furthermore, the upper end of the equal pressure strip is fixedly connected to the thermal insulation cavity structure, and the lower end of the equal pressure strip is fixedly connected to the middle mullion frame and the second middle mullion outer frame. The window sash, the thermal insulation cavity structure, the equal pressure strip and the middle mullion frame form the indoor sealing cavity. The thermal insulation cavity structure, the first middle mullion outer frame, the second middle mullion outer frame and the middle mullion frame form the outdoor equal pressure drainage cavity.
[0021] Furthermore, the side of the equal-pressure rubber strip facing the outdoor equal-pressure drainage cavity has an arched structure.
[0022] Furthermore, the thickness of the flush surface on the inner side of the central frame is 2mm.
[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the extremely narrow mullion frame reduces the visual obstruction area while ensuring the wind pressure resistance and structural strength of the mullion, making the entire window frame simple, elegant, beautiful and luxurious.
[0024] Furthermore, the first pressure line, the second pressure line, and the window sash frame are designed to be flush, and the first pressure line is a closed profile pressure line.
[0025] The beneficial effects of adopting the above-mentioned improvement scheme are: using a frame-panel flush structure results in smoother lines, a more beautiful and grand appearance, and easier integration into a simple decoration style, giving more room for adaptation in decoration.
[0026] Furthermore, the second middle frame is provided with the drain outlet, which is used to drain the accumulated water in the outdoor pressure equalization drainage chamber.
[0027] The advantages of adopting the above-mentioned improvement scheme are as follows: the drain outlet is opened in a concealed place and the water is discharged to the outside through a dedicated water flow channel. There is only a 5mm decorative water groove on the lower side of the window frame or the lower side of the horizontal mullion. There is no need to install an exposed drain hole cover on the outside, and at the same time, it will not be affected by wind and cause rainwater backflow.
[0028] Compared with existing technologies, the beneficial effects of the concealed horizontal mullion drainage system window sash structure with closed pressure lines provided by this utility model are as follows: It includes a first glass window, a second glass window, a first pressure line, a second pressure line, a window sash, an atrium structure, an equal pressure sealing strip, an indoor sealing cavity, and an outdoor equal pressure drainage cavity. The first glass window and the second glass window are symmetrically arranged. The outer sides of the first glass window and the second glass window are fixedly connected to the first pressure line and the second pressure line respectively by composite sealing strips. The first pressure line is fixedly connected to the window sash, and the second pressure line is fixedly connected to the atrium structure. The atrium structure is fixedly connected to the first glass window and the second glass window by composite sealing strips. The window sash is fixedly connected to the atrium structure by composite sealing strips. The equal pressure sealing strip is provided inside the atrium structure. The equal pressure sealing strip divides the space between the window sash and the atrium structure into the indoor sealing cavity and the outdoor equal pressure drainage cavity. The lowest point of the indoor sealing cavity is higher than the lowest point of the outdoor equal pressure drainage cavity. The bottom surface of the indoor sealing cavity and the outdoor equal pressure drainage cavity has a stepped structure. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 A schematic diagram of a concealed mullion and sash structure for a closed-off, flush-lined drainage system.
[0031] Figure 2 A schematic diagram of a window sash with a concealed mullion drainage system featuring a closed-off molding.
[0032] Figure 3 A schematic diagram of the thermal insulation cavity structure of a concealed mullion drainage system with enclosed molding;
[0033] Figure 4 A schematic diagram of the outer frame of the first mullion in a concealed mullion drainage system with enclosed molding;
[0034] Figure 5 A schematic diagram of the outer frame of the second mullion in a concealed mullion drainage system with enclosed molding;
[0035] The attached diagram lists the components represented by each number as follows:
[0036] 10. First glass window; 20. Second glass window; 30. First glazing bead; 40. Second glazing bead; 50. Window sash; 60. Atrium structure; 61. Mullion frame; 62. First mullion outer frame; 63. Second mullion outer frame; 64. Thermal insulation cavity structure; 65. Drain outlet; 70. Pressure-equalizing sealing strip; 80. Indoor sealing cavity; 90. Outdoor pressure-equalizing drainage cavity. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0038] like Figure 1-5 The image shows an embodiment of a concealed horizontal mullion drainage system window sash structure with enclosed pressure lines provided by this utility model. In this embodiment, it includes a first glass window 10, a second glass window 20, a first pressure line 30, a second pressure line 40, a window sash 50, an atrium structure 60, an equal-pressure sealing strip 70, an indoor sealing cavity 80, and an outdoor equal-pressure drainage cavity 90. The first glass window 10 and the second glass window 20 are symmetrically arranged. The inner sides of the first glass window 10 and the second glass window 20 are respectively fixedly connected to the first pressure line 30 and the second pressure line 40 via composite sealing strips. The first pressure line 30 is fixedly connected to the window sash 50. The second pressure line 40 is fixedly connected to the atrium structure 60. The atrium structure 60 is fixedly connected to the first glass window 10 and the second glass window 20 through composite adhesive strips. The window sash 50 is fixedly connected to the atrium structure 60 through composite adhesive strips. An equal pressure adhesive strip 70 is provided inside the atrium structure 60. The equal pressure adhesive strip 70 divides the space between the window sash 50 and the atrium structure 60 into an indoor sealing cavity 80 and an outdoor equal pressure drainage cavity 90. The lowest point of the indoor sealing cavity 80 is higher than the lowest point of the outdoor equal pressure drainage cavity 90. The bottom surfaces of the indoor sealing cavity 80 and the outdoor equal pressure drainage cavity 90 are stepped structures.
[0039] In the above technical solution, the atrium structure 60 includes a mullion frame 61, a first mullion outer frame 62, a second mullion outer frame 63, a heat insulation cavity structure 64, and a drain outlet 65. One end of the first mullion outer frame 62 is fixedly connected to the outside of the first glass window 10 by a composite adhesive strip. The other end of the first mullion outer frame 62 is fixedly connected to one end of the second mullion outer frame 63 by a composite adhesive strip. The other end of the second mullion outer frame 63 is fixedly connected to the outside of the second glass window 20 by a composite adhesive strip. The second mullion outer frame 63 has a letter T-shaped structure, and one end of the vertical line of the letter T is slidably installed with the mullion frame 61.
[0040] Furthermore, in the above technical solution, after the first pressure line 30 is slidably installed with the window sash 50, it is fixed by a foam strip for linear sealing. After the second pressure line 40 is slidably installed with the mullion frame 61, it is fixed by a foam strip for linear sealing. The foam strip is an EPDM foam strip.
[0041] The joint between the second pressure line 40 and the middle mullion frame 61 is filled with polyurethane extruded insulation board, which not only enhances the support performance of the window frame, but also prevents heat conduction between the wall and the window frame, thus improving the insulation performance of the window frame.
[0042] Furthermore, in the above technical solution, the lower end of the window sash 50 is fixedly connected to the mullion frame 61 by a composite adhesive strip.
[0043] Furthermore, in the above technical solution, a heat insulation cavity structure 64 is slidably installed between the window sash 50 and the outer frame 62 of the first middle mullion, and the heat insulation cavity structure 64 is filled with heat insulation cotton.
[0044] Polyurethane foam material can also be selected to fill the heat insulation cavity structure 64.
[0045] Furthermore, in the above technical solution, the upper end of the equal pressure strip 70 is fixedly connected to the heat insulation cavity structure 64, and the lower end of the equal pressure strip 70 is fixedly connected to the middle mullion frame 61 and the second middle mullion outer frame 63. The window sash 50, the heat insulation cavity structure 64, the equal pressure strip 70 and the middle mullion frame 61 form an indoor sealing cavity 80. The heat insulation cavity structure 64, the first middle mullion outer frame 62, the second middle mullion outer frame 63 and the middle mullion frame 61 form an outdoor equal pressure drainage cavity 90.
[0046] Furthermore, in the above technical solution, the side of the equal pressure rubber strip 70 facing the outdoor equal pressure drainage chamber 90 has an arched structure.
[0047] Furthermore, in the above technical solution, the thickness of the flush surface on the inner side of the frame 61 is 2mm.
[0048] Furthermore, in the above technical solution, the edges of the first pressure line 30, the second pressure line 40 and the window sash 50 are designed to be flush, and the first pressure line 30 is a closed profile pressure line.
[0049] Furthermore, in the above technical solution, a drain outlet 65 is provided on the outer frame 63 of the second middle bracket, which is used to drain the accumulated water in the outdoor pressure equalization drainage chamber 90.
[0050] During use, some rainwater seeps into the mullions through the composite rubber strip between the first mullion outer frame 62 and the second mullion outer frame 63. Due to gravity, it drains out from the drain outlet 65 along the arched edge of the equal pressure rubber strip 70. Because the bottom surfaces of the indoor sealing cavity 80 and the outdoor equal pressure drainage cavity 90 are arranged in a stepped manner, with the bottom surface of the indoor sealing cavity 80 being higher than that of the outdoor equal pressure drainage cavity 90, rainwater will not flow backward. Furthermore, since the indoor sealing cavity 80 is a sealed structure, it has excellent thermal insulation performance.
[0051] Specifically, the principle of this invention is as follows: still air is a poor conductor. The airtight cavity forms a closed air layer, which effectively hinders heat transfer. Heat needs to be transferred through conduction, convection, and radiation. In the airtight cavity, because the air does not flow, convective heat transfer is significantly suppressed. When it is windy and rainy outside, wind pressure acts on the surface of the window or curtain wall, creating a certain pressure difference. If the watertight cavity is not connected to the atmosphere, this pressure difference will push rainwater into the room. However, because the isobaric watertight cavity is connected to the atmosphere, the pressure inside the cavity will quickly reach equilibrium with the outdoor wind pressure, thereby eliminating or reducing the pressure difference between the inside and outside of the cavity.
[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A concealed mullion and sash structure with enclosed molding and drainage system, characterized in that: The system includes a first glass window, a second glass window, a first pressure line, a second pressure line, a window sash, an atrium structure, pressure-equalizing strips, an indoor sealing cavity, and an outdoor pressure-equalizing drainage cavity. The first and second glass windows are symmetrically arranged. The inner sides of the first and second glass windows are fixedly connected to the first and second pressure lines respectively by composite strips. The first pressure line is fixedly connected to the window sash, and the second pressure line is fixedly connected to the atrium structure. The atrium structure is fixedly connected to the first and second glass windows by composite strips. The window sash is fixedly connected to the atrium structure by composite strips. The atrium structure has pressure-equalizing strips inside, which divide the space between the window sash and the atrium structure into the indoor sealing cavity and the outdoor pressure-equalizing drainage cavity. The lowest point of the indoor sealing cavity is higher than the lowest point of the outdoor pressure-equalizing drainage cavity. The bottom surfaces of the indoor sealing cavity and the outdoor pressure-equalizing drainage cavity have a stepped structure.
2. The concealed mullion and sash structure of a closed-line drainage system according to claim 1, characterized in that, The atrium structure includes a mullion frame, a first mullion outer frame, a second mullion outer frame, a heat insulation cavity structure, and a drain outlet. One end of the first mullion outer frame is fixedly connected to the outside of the first glass window by a composite adhesive strip. The other end of the first mullion outer frame is fixedly connected to one end of the second mullion outer frame by a composite adhesive strip. The other end of the second mullion outer frame is fixedly connected to the outside of the second glass window by a composite adhesive strip. The second mullion outer frame has a letter T-shaped structure, and one end of the vertical line of the letter T is slidably installed with the mullion frame.
3. The concealed mullion and sash structure of a closed-line drainage system according to claim 2, characterized in that, After the first pressure line is slidably installed with the window sash, it is fixed with a foam strip for linear sealing. After the second pressure line is slidably installed with the mullion frame, it is fixed with a foam strip for linear sealing. The foam strip is an EPDM foam strip.
4. The concealed mullion and sash structure of a closed-line drainage system according to claim 3, characterized in that, The lower end of the window sash is fixedly connected to the mullion frame by a composite adhesive strip.
5. The concealed mullion and sash structure of a closed-line drainage system according to claim 4, characterized in that, The heat insulation cavity structure is slidably installed between the window sash and the outer frame of the first mullion, and the heat insulation cavity structure is filled with heat insulation cotton.
6. The concealed mullion and sash structure of a closed-line drainage system according to claim 5, characterized in that, The upper end of the equal pressure strip is fixedly connected to the thermal insulation cavity structure, and the lower end of the equal pressure strip is fixedly connected to the mullion frame and the second mullion outer frame. The window sash, the thermal insulation cavity structure, the equal pressure strip and the mullion frame form the indoor sealing cavity. The thermal insulation cavity structure, the first mullion outer frame, the second mullion outer frame and the mullion frame form the outdoor equal pressure drainage cavity.
7. The concealed mullion and sash structure of a closed-line drainage system according to claim 6, characterized in that, The side of the isobaric rubber strip facing the outdoor isobaric drainage cavity has an arched structure.
8. The concealed mullion and sash structure of a closed-line drainage system according to claim 7, characterized in that, The thickness of the flush small surface on the inner side of the frame is 2mm.
9. The concealed mullion and sash structure of a closed-line drainage system according to claim 8, characterized in that, The first and second pressure lines are flush with the frame of the window sash, and the first pressure line is a closed profile pressure line.
10. The concealed mullion and sash structure of a closed-line drainage system according to claim 9, characterized in that, The second middle frame is provided with the drain outlet, which is used to drain the accumulated water in the outdoor pressure equalization drainage chamber.