Sealing structure of auxiliary-frame-free double-inward-opening window

Abstract

The utility model relates to the technical field of inward opening windows, in particular to a sealing structure of a double inward opening window without an auxiliary frame, which comprises a window frame, a glass sash and a screen sash, the glass sash is hermetically connected with the window frame, the screen sash is mounted on the outdoor side of the glass sash, and the top of the screen sash is hermetically connected with glass of the glass sash through a first sealing rubber strip. The bottom of the screen sash is connected with the window frame in a sealed mode, a dripping eave is arranged at the bottom of the outdoor side of the screen sash, and a first dripping groove is formed by the dripping eave and the top of the outdoor side of the window frame. According to the sealing structure of the auxiliary-frame-free double inward-opening window, rainwater is effectively prevented from accumulating on the screen sash and transversely flowing, so that the water seepage amount of the whole auxiliary-frame-free double inward-opening window is reduced, and the double inward-opening window adopting the sealing structure of the auxiliary-frame-free double inward-opening window has the advantage of being good in waterproof performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of interior opening window, in particular to a sealing structure of double interior opening window without additional frame. BACKGROUND

[0002] In recent years, the field of door and window design has undergone a series of innovations, among which the screen structure of interior opening window gradually developed into a double interior opening structure, and further extended to a double interior opening window without additional frame. This emerging design aims to optimize the field of vision and user experience, while simplifying the structure to reduce costs.

[0003] However, although the double interior opening window without additional frame has achieved innovation in structure, its sealing performance, especially water tightness, still has deficiencies. Especially at the connecting part of the screen fan and the glass fan, the design defects and insufficient processing precision cause water to easily accumulate in this area, thereby causing water seepage problems.

[0004] The occurrence of water seepage not only affects the practicality of the door and window, but also may cause damage to the indoor environment. In rainy seasons or extreme weather conditions, water seepage problems are particularly prominent and have become a hot spot of user feedback.

[0005] At present, there is no effective technical solution to the above problems. CONTENT OF THE INVENTION

[0006] The purpose of the present application is to provide a sealing structure of double interior opening window without additional frame to avoid water accumulation and seepage on the screen fan and improve the water resistance of the double interior opening window.

[0007] The present application provides a sealing structure of double interior opening window without additional frame, which comprises a window frame, a glass fan and a screen fan. The glass fan is sealingly connected with the window frame, and the screen fan is installed on the outdoor side of the glass fan. The top of the screen fan is sealingly connected with the glass of the glass fan through a first sealing rubber strip, the top surface of the first sealing rubber strip is inclined downward toward the outdoor side, the bottom of the screen fan is sealingly connected with the window frame, and the outdoor bottom of the screen fan has a water drip eave, which forms a first water drip groove with the outdoor top of the window frame.

[0008] The sealing structure of double interior opening window without additional frame effectively avoids water accumulation and horizontal flow on the screen fan, thereby reducing the water seepage amount of the entire double interior opening window without additional frame. The double interior opening window with the sealing structure of double interior opening window without additional frame according to the present application has the advantage of good water resistance.

[0009] The sealing structure of the double-inward-opening window without the additional frame, wherein the screen fan comprises a screen, a screen frame and a first connecting piece, the bottom of the first connecting piece is buckled to the glass fan, and the top of the first connecting piece is sealed to the glass of the glass fan through the first sealing rubber strip, the outdoor side of the first connecting piece is sealed to the screen frame, the screen is installed on the screen frame, and the outdoor side of the bottom of the screen frame is provided with the drip eaves.

[0010] In this example, the screen frame with the screen is sealed to the outdoor side of the first connecting piece and the window frame respectively, so that a continuous sealing area is formed between the outdoor side of the glass of the glass fan and the outdoor side of the window frame, and the amount of rainwater penetration can be effectively reduced.

[0011] The sealing structure of the double-inward-opening window without the additional frame, wherein the outdoor side end surface of the screen frame is flush with the outdoor side end surface of the window frame.

[0012] In this example, the outdoor side end surface of the screen frame is flush with the outdoor side end surface of the window frame, which can prevent the water droplets falling from the drip eaves from entering the first drip groove, and reduce the direct contact area between the rainwater and the window frame, thereby effectively reducing the amount of rainwater penetration.

[0013] The sealing structure of the double-inward-opening window without the additional frame, wherein the screen frame comprises a second connecting piece and a third connecting piece, the second connecting piece is sealed to the outdoor side of the first connecting piece through a second sealing rubber strip, the bottom of the screen is limitedly arranged on the top of the outdoor side of the second connecting piece, and the bottom of the third connecting piece is buckled to the second connecting piece, and the top of the third connecting piece is used to compress and seal the screen through a third sealing rubber strip.

[0014] The sealing structure of the double-inward-opening window without the additional frame, wherein the top surface of the second connecting piece, the third connecting piece and the third sealing rubber strip is flush, the top surface of the second sealing rubber strip is higher than the top of the second connecting piece and lower than the top surface of the first sealing rubber strip.

[0015] The sealing structure of the double-inward-opening window without the additional frame, wherein the bottom of the screen is fixed with a limiting buckle, the top of the outdoor side of the second connecting piece is provided with a limiting groove, and the limiting buckle is limitedly buckled in the limiting groove.

[0016] The sealing structure of the double-inward-opening window without the additional frame, wherein the outdoor side of the bottom of the screen fan is provided with a fourth sealing rubber strip, the top of the window frame is provided with a fifth sealing rubber strip, the window frame is sealed to the screen fan through the fifth sealing rubber strip to compress the fourth sealing rubber strip, and the first drip groove is formed.

[0017] The sealing structure of the double-inward-opening window without additional frame, wherein the top of the window frame is sealed and connected with the bottom of the glass sash through the equal-pressure sealing strip, and the indoor side of the window frame is sealed and connected with the bottom of the glass sash through the sixth sealing strip.

[0018] The sealing structure of the double-inward-opening window without additional frame, wherein the window frame and / or the glass sash is filled with soundproofing material.

[0019] The sealing structure of the double-inward-opening window without additional frame, wherein the middle part of the outdoor side of the window frame has a second water drip groove.

[0020] As can be seen from the above, the sealing structure of the double-inward-opening window without additional frame provided by the application has the feature that the first sealing strip with the top surface inclined downward toward the outdoor side is used to seal and connect the top of the screen sash and the glass sash, so that the rainwater falling on the glass sash can flow to the outer wall of the screen sash outdoor side through the top surface of the support part of the screen sash under the guidance of the first sealing strip, and then form water drops and drip downward under the drip eaves, effectively avoiding the accumulation and horizontal flow of rainwater on the screen sash, thereby reducing the water seepage amount of the entire double-inward-opening window without additional frame. In addition, the first water drip groove is formed between the drip eaves and the outdoor side top of the window frame, which can further ensure that the rainwater on the drip eaves can form water drops and drip out smoothly, and the sealing connection between the bottom of the screen sash and the window frame also avoids the inward seepage of rainwater from the first water drip groove, so that the double-inward-opening window with the sealing structure of the double-inward-opening window without additional frame provided by the application has the advantage of good waterproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structural schematic diagram of the sealing structure of the double-inward-opening window without additional frame provided by the embodiment of the application.

[0022] Figure 2 The schematic diagram of the sealing structure of the double-inward-opening window without additional frame provided by the embodiment of the application when rainwater falls.

[0023] Figure 3 The Figure 1 The enlarged view of the middle A.

[0024] Fig. 1: window frame; Fig. 2: glass sash; Fig. 3: screen sash; Fig. 4: first sealing strip; Fig. 5: drip eaves; Fig. 6: first water drip groove; Fig. 7: screen mesh; Fig. 8: screen window frame; Fig. 9: first connecting piece; Fig. 10: second connecting piece; Fig. 11: third connecting piece; Fig. 12: second sealing strip; Fig. 13: third sealing strip; Fig. 14: limiting buckle; Fig. 15: fourth sealing strip; Fig. 16: fifth sealing strip; Fig. 17: equal-pressure sealing strip; Fig. 18: sixth sealing strip; Fig. 19: soundproofing material; Fig. 20: second water drip groove; Fig. 21: rainwater. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] In the description of the present application, it should be noted that, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0030] Please refer to Figures 1-3 Some embodiments of the present application provide a sealing structure for a double-inward-opening window without an attached frame. The sealing structure of the double-inward-opening window without an attached frame includes: a window frame 1, a glass sash 2 and a screen sash 3. The glass sash 2 is sealed to the window frame 1, and the screen sash 3 is installed on the outdoor side of the glass sash 2. The top of the screen sash 3 is sealed to the glass of the glass sash 2 through a first sealing strip 4. The top surface of the first sealing strip 4 is inclined downward toward the outdoor side. The bottom of the screen sash 3 is sealed to the window frame 1, and the bottom of the outdoor side has a drip eaves 5. The drip eaves 5 and the top of the outdoor side of the window frame 1 form a first drip groove 6.

[0031] Specifically, in order to facilitate the opening and closing of the glass fan 2 indoors, the screen fan 3 needs to be installed on the outdoor side of the glass fan 2; Figure 2 As shown, in actual use, the glass fan 2, the window and the screen fan 3 form a sealed whole. When it rains, rainwater 21 falls on the outdoor side of the glass fan 2, the window and the screen fan 3. The rainwater 21 that falls on a high place slides down along the glass surface of the glass fan 2, and then is guided by the top surface of the first sealing strip 4 that is tilted downward toward the outdoor side and flows to the top surface of the supporting part of the screen fan 3. Under the action of inertia and the subsequent rainwater 21, the rainwater 21 continues to flow toward the outer wall of the outdoor side of the screen fan 3, and will not accumulate on the top surface of the supporting part of the screen fan 3. The dripping eaves 5 and the top of the outdoor side of the window frame 1 form a first drip groove 6, which can ensure that the rainwater 21 on the dripping eaves 5 can smoothly form water droplets and drip out. The sealed connection between the bottom of the screen fan 3 and the window frame 1 also prevents the rainwater 21 from seeping inward from the first drip groove 6.

[0032] The sealing structure of the double-inward-opening window without a frame according to the embodiments of the present application is characterized in that the first sealing strip 4 with the top surface inclined downward toward the outdoor side is used to seal the connection between the top of the screen fan 3 and the glass of the glass fan 2, so that the rainwater 21 falling on the glass can flow naturally to the outer wall of the screen fan 3 outdoor side through the top surface of the support portion of the screen fan 3 under the guidance of the first sealing strip 4, and then form water droplets to drop down (water flow will also be formed when the flow of rainwater 21 is large), effectively avoiding the accumulation and horizontal flow of rainwater 21 on the screen fan 3, thereby reducing the water seepage amount of the entire double-inward-opening window without a frame. In addition, the first water droplet groove 6 is formed between the outdoor side top of the window frame 1 and the water dropper 5, which can further ensure that the rainwater 21 on the water dropper 5 can smoothly form water droplets to drop out, and the sealing connection between the bottom of the screen fan 3 and the window frame 1 also avoids the inward seepage of rainwater 21 from the first water droplet groove 6, so that the double-inward-opening window with the sealing structure of the double-inward-opening window without a frame according to the embodiments of the present application has the advantage of good waterproof performance.

[0033] It should be noted that the water dropper 5 can adopt different structures to guide the rainwater 21 to form water droplets to drop down. In the embodiments of the present application, the water dropper 5 preferably comprises a downward protruding protruding strip.

[0034] In some preferred embodiments, the screen fan 3 comprises a screen net 7, a screen window frame 8 and a first connecting piece 9. The bottom of the first connecting piece 9 is buckled and fixed on the glass fan 2, and the top thereof is sealingly connected with the glass of the glass fan 2 through the first sealing strip 4. The outdoor side of the first connecting piece 9 is sealingly connected with the screen window frame 8. The screen net 7 is installed on the screen window frame 8. The outdoor side bottom of the screen window frame 8 is provided with the water dropper 5.

[0035] Specifically, the through hole of the first connecting piece 9 is buckled and fixed on the glass fan 2, which is conducive to the rapid installation of the first screen fan 3. The screen window frame 8 on which the screen net 7 is installed is sealingly connected with the outdoor side of the first connecting piece 9 and the outdoor side of the window frame 1, so that a continuous sealing area is formed between the outdoor side of the glass of the glass fan 2 and the outdoor side of the window frame 1, which can effectively reduce the seepage amount of rainwater 21.

[0036] In some preferred embodiments, the outdoor side end surface of the screen window frame 8 is flush with the outdoor side end surface of the window frame 1.

[0037] Specifically, the outdoor side end surface of the screen window frame 8 is flush with the outdoor side end surface of the window frame 1, which can avoid the water droplets falling on the water dropper 5 from entering the first water droplet groove 6, and at the same time, reduce the direct contact area of rainwater 21 with the window frame 1, thereby effectively reducing the seepage amount of rainwater 21.

[0038] In some preferred embodiments, the screen frame 8 comprises a second connecting piece 10 and a third connecting piece 11, the second connecting piece 10 is sealingly connected with the outdoor side of the first connecting piece 9 through a second sealing strip 12, the bottom of the screen 7 is limitedly arranged at the top of the outdoor side of the second connecting piece 10, and the third connecting piece 11 is buckle-fixed at the bottom of the second connecting piece 10 and is tightly sealed with the screen 7 through a third sealing strip 13 at the top thereof.

[0039] Specifically, in this embodiment, the screen 7 is installed on the second connecting piece 10 through buckle fixation to realize the basic fixation of the screen 7, and the third connecting piece 11 buckle-fixed on the second connecting piece 10 tightly seals the outdoor side of the screen 7 through the third sealing strip 13 to realize the reinforced fixation of the screen 7, which ensures the stable installation of the screen 7 and also makes the sealing structure of the double-inward-opening window without the attached frame of the embodiment have the advantage of convenient installation; secondly, the third connecting piece 11 tightly seals the screen 7 through the third sealing strip 13, which also keeps the transition part between the top of the second connecting piece 10 and the top of the third connecting piece 11 having sufficient sealing performance, effectively avoiding the penetration of rainwater 21 from the installation position of the screen 7.

[0040] It should be noted that the first connecting piece 9, the second connecting piece 10 and the third connecting piece 11 are all fan-shaped profiles.

[0041] In some preferred embodiments, the top surfaces of the second connecting piece 10, the third connecting piece 11 and the third sealing strip 13 are flush, and the top surface of the second sealing strip 12 is higher than the top of the second connecting piece 10 and lower than the top surface of the first sealing strip 4.

[0042] Specifically, the flush top surfaces of the second connecting piece 10, the third connecting piece 11 and the third sealing strip 13 will not cause the splashing and accumulation of the rainwater 21 flowing on the surface, which is conducive to the smooth flow of the rainwater 21 from the top surface of the screen frame 8 to the end surface of the outdoor side; the height of the top surface of the second sealing strip 12 is also conducive to the diversion of the rainwater 21 from the first sealing strip 4 to the top surface of the screen frame 8.

[0043] In some preferred embodiments, the top of the second sealing strip 12 has an inclined surface downwardly inclined toward the outdoor side to make the diversion of the rainwater 21 more smooth.

[0044] In some preferred embodiments, the bottom of the screen 7 is fixed with a limiting buckle 14, and the top of the outdoor side of the second connecting piece 10 is provided with a limiting groove, and the limiting buckle 14 is limitingly buckled in the limiting groove.

[0045] Specifically, in this embodiment, the screen 7 can be quickly installed by buckling in the limiting groove through the limiting buckle 14 to realize the basic fixation of the screen 7, which has the characteristics of convenient operation and realizes the modular installation of the screen 7.

[0046] In some preferred embodiments, the outdoor side of the bottom of the screen fan 3 is provided with a fourth sealing strip 15, and the top of the window frame 1 is provided with a fifth sealing strip 16. The window frame 1 is sealingly connected with the screen fan 3 by pressing the fourth sealing strip 15 with the fifth sealing strip 16, and a first water drip groove 6 is formed.

[0047] Specifically, in this embodiment, the screen fan 3 and the window frame 1 are sealingly connected by pressing the two sealing strips, which can further improve the sealing performance between the two, further avoid the rainwater 21 from penetrating into the first water drip groove 6, and facilitate the disassembly and assembly of the screen window.

[0048] More specifically, in the embodiment of the present application, the fourth sealing strip 15 is preferably arranged at the bottom of the second connecting piece 10, so that the indoor and outdoor sides of the second connecting piece 10 are respectively pressed and installed by the second sealing strip 12 and the fourth sealing strip 15. There is no need to use buckles, bolt connections and other methods for fixation, which further simplifies the installation process of the screen fan 3.

[0049] More specifically, the window frame 1 is sealingly connected with the screen fan 3 by pressing the fourth sealing strip 15 with the fifth sealing strip 16, so that the height of the lower groove wall of the first water drip groove 6 (i.e. the top surface of the outdoor side of the window frame 1) is lower than the height of the sealing line (the top end of the sealing surface between the fourth sealing strip 15 and the fifth sealing strip 16) located close to the outdoor side, which can effectively avoid the rainwater 21 in the first water groove from penetrating into the sealing surface between the fourth sealing strip 15 and the fifth sealing strip 16.

[0050] More specifically, the top of the fifth sealing strip 16 also has a downwardly inclined inclined surface towards the outdoor side, to further avoid the rainwater 21 from penetrating into the sealing surface.

[0051] In some preferred embodiments, the top of the window frame 1 is sealingly connected with the bottom of the glass fan 2 by an equal-pressure sealing strip 17, and the indoor side of the window frame 1 is sealingly connected with the bottom of the glass fan 2 by a sixth sealing strip 18.

[0052] Specifically, the glass fan 2 is sealingly connected with the window frame 1 by the sixth sealing strip 18 and the equal-pressure sealing strip 17, which can effectively ensure the sealing effect of the connection between the two, and also ensure that the indoor side and the outdoor side of the entire double-inward-opening window have sufficient heat insulation effect.

[0053] In some preferred embodiments, the window frame 1 and / or the glass fan 2 are filled with sound insulation material 19.

[0054] Specifically, the filling of the sound insulation material 19 can effectively improve the sound insulation performance of the double-inward-opening window, meeting the user's use requirements.

[0055] In some preferred embodiments, the middle part of the outdoor side of the window frame 1 has a second water drip groove 20.

[0056] Specifically, the water drip groove can effectively prevent rainwater 21 from flowing horizontally on the window frame 1, and further improve the structural strength of the window frame 1.

[0057] It is worth mentioning that the sealing strip is generally limited by the limiting features (such as a clamping groove, a protruding block, etc.) in the fan profile on one side and installed by being compressed and deformed on the other side to achieve the effect of sealing connection, so the specific structure thereof will not be described here.

[0058] In the description of the present specification, the description referring to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A sealed construction of a double casement window without a mullion, characterized in that The sealing structure of the double-inward-opening window without attached frame comprises a window frame, a glass sash and a screen sash, the glass sash is sealingly connected with the window frame, the screen sash is installed on the outdoor side of the glass sash, the top of the screen sash is sealingly connected with the glass of the glass sash through a first sealing strip, the top surface of the first sealing strip is inclined downward toward the outdoor side, the bottom of the screen sash is sealingly connected with the window frame, and the outdoor side bottom of the screen sash has a drip eave, the drip eave and the outdoor side top of the window frame form a first drip groove.

2. The sealed structure of a double-swing window without an attached frame according to claim 1, wherein, The screen sash comprises a screen, a screen window frame and a first connecting piece, the bottom of the first connecting piece is buckle-fixed on the glass sash, and the top of the first connecting piece is sealingly connected with the glass of the glass sash through the first sealing strip, the outdoor side of the first connecting piece is sealingly connected with the screen window frame, the screen is installed on the screen window frame, and the outdoor side bottom of the screen window frame has the drip eave.

3. The sealed structure of a double-swing window without an attached frame according to claim 2, characterized in that, The outdoor side end surface of the screen window frame is flush with the outdoor side end surface of the window frame.

4. The sealed structure of claim 2, wherein, The screen window frame comprises a second connecting piece and a third connecting piece, the outdoor side of the second connecting piece is sealingly connected with the first connecting piece through a second sealing strip, the bottom of the screen is limitingly arranged on the top of the outdoor side of the second connecting piece, and the bottom of the third connecting piece is buckle-fixed on the second connecting piece, and the top of the third connecting piece is used for pressing and sealing the screen through a third sealing strip.

5. The sealed structure of a double-swing window without an attached frame according to claim 4, characterized in that, The top surfaces of the second connecting piece, the third connecting piece and the third sealing strip are flush, the top surface of the second sealing strip is higher than the top of the second connecting piece and lower than the top surface of the first sealing strip.

6. The sealed structure of claim 4, wherein, The bottom of the screen is fixed with a limit buckle, the top of the outdoor side of the second connecting piece is provided with a limit groove, and the limit buckle is limitingly buckled in the limit groove.

7. The sealed structure of claim 1, wherein, The outdoor side of the bottom of the screen sash is provided with a fourth sealing strip, the top of the window frame is provided with a fifth sealing strip, the window frame is sealingly connected with the screen sash through the fifth sealing strip pressing the fourth sealing strip, and the first drip groove is formed.

8. The sealed structure of claim 1, wherein, The top of the window frame is sealingly connected with the bottom of the glass sash through an equal-pressure sealing strip, and the indoor side of the window frame is sealingly connected with the bottom of the glass sash through a sixth sealing strip.

9. The sealed structure of claim 1, wherein, The window frame and / or the glass sash is filled with sound insulation material.

10. The sealed structure of claim 1, wherein, The middle part of the outdoor side of the window frame has a second drip groove.

Images