Hidden type lower drainage system window frame and window sash structure of closed pressing line
By setting up a sealed heat insulation cavity and a stepped drainage system inside the window frame, the problems of exposed window frame drainage outlets affecting aesthetics and rainwater backflow are solved, achieving efficient heat insulation, sealing and concealed drainage, and improving the overall performance and comfort of the window.
Patent Information
- Application Number
- CN202520471060.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing window frames and sashes have exposed drainage outlets, which affect the appearance and are prone to aging and falling off, causing rainwater to flow back and failing to effectively prevent wind from blowing into the room.
A concealed bottom drainage system window frame and sash structure with a closed pressure line was designed. By setting a sealed heat insulation cavity and a stepped drainage system inside the window frame, composite rubber strips and profiles are used to slide and snap together to form an indoor sealed cavity and an outdoor drainage pressure cavity. Combined with polyurethane foam material filling, an effective air insulation layer and a concealed drainage channel are formed.
It improves the heat insulation and sealing performance of windows, prevents rainwater backflow, keeps the interior dry and clean, and meets the aesthetic requirements of modern architectural design.
Smart Images

Figure CN223908067U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of doors and windows, and particularly relates to a hidden lower drainage system window frame and sash structure with closed press lines. BACKGROUND
[0002] Modern people pay more and more attention to the comfort and health of living environment. The sealing and sound insulation of window frame and sash structure directly affect indoor air quality and living experience. The window frame and sash structure refers to the main frame and movable part of a window. The window frame is the fixed part of the window, usually installed on the wall, used to support the sash. The sash is the movable part that can be opened or closed, connected to the window frame through hinges, sliding rails, etc. The design of the window frame and sash structure directly affects the performance of the window, including lighting, ventilation, heat insulation, sound insulation, safety, and most importantly, waterproof and drainage capacity.
[0003] The existing drainage port of the window frame and sash is usually directly opened on the side wall of the window frame. The drainage port exposed to the outside often needs to be matched with a drainage hole cover. However, the drainage hole cover often ages and falls off after being irradiated by sunlight for a long time. The discolored drainage hole cover is inconsistent with the color of the window frame, affecting the appearance. At the same time, the drainage hole cover will expose the drainage port to the outside world after aging and falling off, which will cause rainwater to flow backward when the wind blows towards the drainage port. SUMMARY
[0004] Therefore, the utility model provides a hidden lower drainage system window frame and sash structure with closed press lines, which can solve the problem of the existing window frame drainage port being exposed to the outside world and affecting the appearance.
[0005] The utility model is implemented as follows:
[0006] The utility model provides a hidden lower drainage system window frame and sash structure with closed press lines, which comprises a glass window, a press line, a center frame, a first thermal insulation profile, a first plastic steel profile, an equal pressure adhesive tape, an indoor sealing cavity, an outdoor drainage equal pressure cavity, and a window frame outer edge. The inner side of the glass window is fixedly connected with the press line through a composite adhesive tape. The outer side of the glass window is fixedly connected with the center frame through a composite adhesive tape. The press line and the first plastic steel profile are slidably installed and fixed through a foaming adhesive tape. The first thermal insulation profile is slidably installed between the first plastic steel profile and the center frame. The upper top surface of the first thermal insulation profile is fixedly connected with the glass window through an adhesive tape. The first plastic steel profile is fixedly connected with the window frame outer edge through a composite adhesive tape. The window frame outer edge is slidably connected with the center frame. The inner side of the center frame is provided with an equal pressure adhesive tape. The equal pressure adhesive tape divides the space surrounded by the center frame, the first thermal insulation profile, the first plastic steel profile, and the window frame outer edge into the indoor sealing cavity and the outdoor drainage equal pressure cavity. The lower bottom surface of the indoor sealing cavity and the outdoor drainage equal pressure cavity is a stepped structure.
[0007] The technical advantages of the concealed bottom drainage system window frame and sash structure with enclosed pressure lines provided by this utility model are as follows: 1. The three sealed heat insulation cavities—the first heat insulation profile, the indoor sealing cavity, and the second heat insulation profile—distributed from top to bottom, can significantly improve the heat insulation performance of the window, reduce heat transfer, and thus improve indoor comfort. The sealed heat insulation cavities can effectively prevent the penetration of air, water vapor, and noise, improving the overall sealing performance of the window.
[0008] 2. Concealed downdraft drainage systems can effectively remove moisture accumulated inside windows, preventing water stains and mold, while also effectively preventing wind from blowing into the room; stepped drainage systems can effectively prevent rainwater from flowing back into the room, keeping the room dry even in strong winds and heavy rain.
[0009] 3. The recessed design effectively prevents wind from blowing directly into the drain outlet, reducing wind interference with the drainage system and ensuring its normal operation. In windy weather, the recessed design effectively prevents external wind from driving water back into the room, keeping the indoor environment dry and clean.
[0010] 3. The concealed drainage system makes the drain outlet more hidden, does not affect the overall aesthetics of the window, and meets the needs of modern architectural design.
[0011] Based on the above technical solution, the window frame and sash structure of the concealed bottom drainage system with closed pressure line of this utility model can be further improved as follows:
[0012] The mullion frame includes a first mullion outer frame, a second mullion outer frame, a groove, and a drain outlet. The second mullion outer frame includes an upper frame and a lower frame. The upper end of the first mullion outer frame is fixedly connected to the outside of the glass window by a composite adhesive strip. The lower end of the first mullion outer frame is fixedly connected to the upper frame by a composite adhesive strip. The inner wall of the first mullion outer frame is provided with a slot that matches the protrusion on the surface of the first thermal insulation profile. The first mullion outer frame and the first thermal insulation profile are slidably engaged. The upper frame and the lower frame are fixedly connected. The groove is formed by an inward recess at the connection between the upper frame and the lower frame.
[0013] Furthermore, the bottom of the upper frame is provided with the drain outlet, which is connected to both the outdoor drainage pressure chamber and the groove.
[0014] Further, the window frame outer edge comprises a second thermal insulation profile, a second plastic steel profile and a thermal insulation plate, the second plastic steel profile is fixedly connected with the first plastic steel profile through a composite adhesive tape, a sliding groove matched with the protrusions on the outer surface of the second thermal insulation profile is arranged on the inner wall of the second plastic steel profile, the second plastic steel profile and the second thermal insulation profile are slidingly connected, the second thermal insulation profile and the lower frame part are slidingly connected, and the lower side of the second thermal insulation profile, the second plastic steel profile and the lower frame part is provided with the thermal insulation plate.
[0015] The improved scheme has the beneficial effects that the thermal insulation plate not only enhances the support performance of the window frame, but also prevents heat conduction between the wall and the window frame, and improves the thermal insulation performance of the window frame.
[0016] Further, the first thermal insulation profile and the second thermal insulation profile are both filled with polyurethane foam.
[0017] The improved scheme has the beneficial effects that the air convection in the cavity can be effectively prevented, the heat exchange between the indoor and outdoor is greatly reduced, and the energy-saving index of the material is improved.
[0018] Further, the upper end of the equal-pressure adhesive tape is fixedly connected with the first thermal insulation profile, and the lower end of the equal-pressure adhesive tape is fixedly connected with the second thermal insulation profile and the lower frame part.
[0019] Further, the space surrounded by the first plastic steel profile, the first thermal insulation profile, the equal-pressure adhesive tape and the second plastic steel profile is the indoor sealing cavity, the space surrounded by the first thermal insulation profile, the second thermal insulation profile, the second outer frame and the equal-pressure adhesive tape is the outdoor drainage equal-pressure cavity, and the height of the lower bottom surface of the indoor sealing cavity is higher than the height of the lower bottom surface of the outdoor drainage equal-pressure cavity.
[0020] Further, the press line is a closed profile press line.
[0021] The improved scheme has the beneficial effects that the closed profile press line is adopted, and when the glass is pressed by the wind pressure and the profile, the press line will not fall off due to deformation, thereby ensuring the safety and stability of the door and window.
[0022] Further, one side of the equal-pressure adhesive tape facing the outdoor drainage equal-pressure cavity is in an arc structure.
[0023] Further, the foaming adhesive tape is a three-element ethylene-propylene foaming adhesive tape.
[0024] The improved scheme has the beneficial effects that an independent separation cavity can be formed between the glass and the outer window frame profile wall, the air convection of the original large cavity is effectively improved by using the air heat insulation principle, and the thermal insulation and heat insulation performance is improved.
[0025] Compared with the prior art, the closed and pressed line hidden lower drainage system window frame and sash structure has the following beneficial effects:
[0026] 1. The first heat preservation profile, the indoor sealing cavity and the second heat preservation profile can significantly improve the heat insulation performance of the window, reduce the heat transfer, and improve the indoor comfort. The sealing and heat insulation cavity can effectively prevent air, water vapor and noise penetration, and improve the overall sealing performance of the window.
[0027] 2. The hidden lower drainage system can effectively drain the water accumulated in the window, prevent water stains and mildew, and also effectively prevent wind from blowing into the room; the stepped drainage system can effectively prevent rainwater from flowing into the room, and can keep the room dry even in strong stormy weather.
[0028] 3. The groove design can effectively prevent wind from directly blowing into the drainage port, reduce the interference of wind blowing on the drainage system, and ensure the normal operation of the drainage system. In strong wind weather, the groove can effectively prevent external wind force from pouring water into the room, keeping the room dry and clean.
[0029] 3. The hidden lower drainage system makes the drainage port more concealed, does not affect the overall appearance of the window, and meets the needs of modern building design. BRIEF DESCRIPTION OF DRAWINGS
[0030] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0031] Figure 1 is a schematic view of a closed and pressed line hidden lower drainage system window frame and sash structure;
[0032] Figure 2 is a schematic view of a second plastic steel profile of a closed and pressed line hidden lower drainage system window frame and sash structure;
[0033] Figure 3 is a schematic view of a second middle support outer frame of a closed and pressed line hidden lower drainage system window frame and sash structure;
[0034] Figure 4 is a schematic view of a first middle support outer frame of a closed and pressed line hidden lower drainage system window frame and sash structure;
[0035] Figure 5Fig. 1 is a schematic view of a first plastic steel profile of a hidden lower drainage system window frame and sash structure with closed press lines according to the present application;
[0036] In the drawings, the components represented by the reference numbers are listed as follows:
[0037] 10, glass window; 20, press line; 30, mullion frame; 31, first mullion outer frame; 32, second mullion outer frame; 321, upper frame portion; 322, lower frame portion; 33, groove; 34, drainage port; 40, first thermal insulation profile; 50, first plastic steel profile; 60, equal pressure adhesive strip; 70, indoor sealing cavity; 80, outdoor drainage equal pressure cavity; 90, window frame outer edge; 91, second thermal insulation profile; 92, second plastic steel profile; 93, thermal insulation board. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.
[0039] As shown in Figures 1-5 Fig. 1 is a schematic view of a first plastic steel profile of a hidden lower drainage system window frame and sash structure with closed press lines according to the present application, in the embodiment, including glass window 10, press line 20, mullion frame 30, first thermal insulation profile 40, first plastic steel profile 50, equal pressure adhesive strip 60, indoor sealing cavity 70, outdoor drainage equal pressure cavity 80 and window frame outer edge 90, the inner side of the glass window 10 is fixedly connected with the press line 20 through the composite adhesive strip, the outer side of the glass window 10 is fixedly connected with the mullion frame 30 through the composite adhesive strip, the press line 20 is slidably installed with the first plastic steel profile 50 and then is fixed through the foaming adhesive strip, the first plastic steel profile 50 and the mullion frame 30 are slidably installed with the first thermal insulation profile 40, the upper top surface of the first thermal insulation profile 40 is fixedly connected with the glass window 10 through the adhesive strip, the first plastic steel profile 50 is fixedly connected with the window frame outer edge 90 through the composite adhesive strip, the window frame outer edge 90 is slidably connected with the mullion frame 30, the inner side of the mullion frame 30 is provided with the equal pressure adhesive strip 60, the equal pressure adhesive strip 60 divides the space surrounded by the mullion frame 30, the first thermal insulation profile 40, the first plastic steel profile 50 and the window frame outer edge 90 into the indoor sealing cavity 70 and the outdoor drainage equal pressure cavity 80, the lower bottom surface of the indoor sealing cavity 70 and the outdoor drainage equal pressure cavity 80 is a stepped structure.
[0040] In the technical scheme, the middle frame 30 comprises a first middle frame outer 31, a second middle frame outer 32, a groove 33 and a drainage port 34. The second middle frame outer 32 comprises an upper frame part 321 and a lower frame part 322. The upper end of the first middle frame outer 31 is fixedly connected with the outer of the glass window 10 through a composite adhesive tape. The lower end of the first middle frame outer 31 is fixedly connected with the upper frame part 321 through a composite adhesive tape. The inner wall of the first middle frame outer 31 is provided with a clamping groove matched with the surface protrusion of the first thermal insulation profile 40. The first middle frame outer 31 is slidingly connected with the first thermal insulation profile 40. The upper frame part 321 is fixedly connected with the lower frame part 322. The connecting part of the upper frame part 321 and the lower frame part 322 is concave to form the groove 33.
[0041] Further, in the technical scheme, the bottom of the upper frame part 321 is provided with the drainage port 34. The drainage port 34 simultaneously communicates with the outdoor drainage equal pressure cavity 80 and the groove 33.
[0042] Further, in the technical scheme, the window frame outer 90 comprises a second thermal insulation profile 91, a second plastic steel profile 92 and a thermal insulation plate 93. The second plastic steel profile 92 is fixedly connected with the first plastic steel profile 50 through a composite adhesive tape. The inner wall of the second plastic steel profile 92 is provided with a sliding groove matched with the protrusion on the outer surface of the second thermal insulation profile 91. The second plastic steel profile 92 is slidingly connected with the second thermal insulation profile 91. The second thermal insulation profile 91 is slidingly connected with the lower frame part 322. The lower part of the second thermal insulation profile 91, the second plastic steel profile 92 and the lower frame part 322 is provided with the thermal insulation plate 93. The thermal insulation plate 93 is a polyurethane extruded thermal insulation plate.
[0043] Further, in the technical scheme, the first thermal insulation profile 40 and the second thermal insulation profile 91 are both filled with polyurethane foam.
[0044] The inner part can also be filled with thermal insulation cotton.
[0045] Further, in the technical scheme, the upper end of the equal pressure adhesive tape 60 is fixedly connected with the first thermal insulation profile 40. The lower end of the equal pressure adhesive tape 60 is fixedly connected with the second thermal insulation profile 91 and the lower frame part 322.
[0046] Further, in the technical scheme, the space surrounded by the first plastic steel profile 50, the first thermal insulation profile 40, the equal pressure adhesive tape 60 and the second plastic steel profile 92 is the indoor sealing cavity 70. The space surrounded by the first thermal insulation profile 40, the second thermal insulation profile 91, the second middle frame outer 32 and the equal pressure adhesive tape 60 is the outdoor drainage equal pressure cavity 80. The height of the lower bottom surface of the indoor sealing cavity 70 is higher than the height of the lower bottom surface of the outdoor drainage equal pressure cavity 80.
[0047] Further, in the technical scheme, the line pressing part 20 is a closed profile line pressing part.
[0048] Further, in the above technical solution, one side of the equal-pressure rubber strip 60 facing the outdoor drainage equal-pressure cavity 80 is in an arched structure.
[0049] Further, in the above technical solution, the foamed rubber strip is a ternary ethylene-propylene foamed rubber strip.
[0050] In use, part of the rainwater penetrates into the middle sash through the composite rubber strip between the first middle sash outer frame 31 and the second middle sash outer frame 32, and is discharged from the drainage port 34 along the arched edge of the equal-pressure rubber strip 60 due to gravity. Since the lower bottom surfaces of the indoor sealing cavity 70 and the outdoor drainage equal-pressure cavity 80 are arranged in a stepped manner, the lower bottom surface of the indoor sealing cavity 70 is higher than that of the outdoor drainage equal-pressure cavity 80, so that the rainwater cannot flow back. At the same time, since the indoor sealing cavity 70 is in a closed structure, it has good heat preservation and insulation performance.
[0051] Specifically, the principle of the utility model is that: static air is a poor conductor. The air-tight cavity forms a closed air layer, which can effectively hinder the transfer of heat. Heat needs to be transferred through conduction, convection and radiation. In the air-tight cavity, since the air does not flow, the heat transfer by convection is significantly inhibited. When it is windy and rainy outside, the wind pressure will act on the surface of the window or curtain wall, forming a certain pressure difference. If the water-tight cavity is not connected with the atmosphere, the pressure difference will push the rainwater into the indoor. However, since the equal-pressure water-tight cavity is connected with the atmosphere, the pressure inside the cavity will quickly reach balance with the outdoor wind pressure, so as to eliminate or reduce the pressure difference between the inside and outside of the cavity.
[0052] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A concealed window frame and sash construction for a closed-pressed line hidden underdrain system, characterized in that, The glass window is fixedly connected with the press line through the composite adhesive strip on the inner side, and is fixedly connected with the middle frame through the composite adhesive strip on the outer side.
2. A concealed drainage system window frame and sash structure with concealed compression line according to claim 1, characterized in that, The middle frame comprises a first middle frame, a second middle frame, a groove and a drainage port.
3. The concealed drainage system window frame and sash structure of claim 2, wherein, The bottom of the upper frame is provided with the drainage port, which simultaneously communicates the outdoor drainage equal pressure cavity and the groove.
4. The concealed drainage system window frame and sash structure of claim 3, wherein, The window frame comprises a second thermal insulation profile, a second plastic steel profile and a thermal insulation plate.
5. The concealed drainage system window frame and sash structure of claim 4, wherein, The first thermal insulation profile and the second thermal insulation profile are filled with polyurethane foam.
6. The concealed drainage system window frame and sash structure of claim 5, wherein, The upper end of the equal pressure adhesive strip is fixedly connected with the first thermal insulation profile, and the lower end of the equal pressure adhesive strip is fixedly connected with the second thermal insulation profile and the lower frame.
7. The concealed underdrain system window frame sash structure of claim 6, wherein, The space surrounded by the first plastic steel profile, the first thermal insulation profile, the equal pressure adhesive strip, the second plastic steel profile is the indoor sealing cavity, and the space surrounded by the first thermal insulation profile, the second thermal insulation profile, the second middle frame and the equal pressure adhesive strip is the outdoor drainage equal pressure cavity.
8. The concealed underdrain system window frame sash structure of claim 7, wherein, The height of the lower bottom of the indoor sealing cavity is higher than the height of the lower bottom of the outdoor drainage equal pressure cavity.
9. The concealed underdrain system window frame sash structure of claim 8, wherein, The equal pressure adhesive strip is in an arch structure towards the outdoor drainage equal pressure cavity.
10. The concealed underdrain system window frame sash structure of claim 9, wherein, The foaming adhesive strip is a ternary ethylene-propylene foaming adhesive strip.