Drainable modular window structure

Abstract

The application discloses a combined window structure capable of draining water, which comprises a first window, a second window and an openable window; the first window comprises a first glass and a first window frame surrounding the first glass; the second window comprises a second glass and a second window frame surrounding the second glass; the openable window comprises an openable window and a third window frame; the openable window comprises a third glass and an openable window frame surrounding the third glass; the second window frame and the third window frame are located on one side of the first window frame, and the second window frame is located below or above the third window frame; the bottom of the first window frame, the second window frame and the third window frame is provided with a drain hole and a drain groove; the drain hole is located above the drain groove and communicates with the drain groove; the drain groove is open to the outside; the bottom wall of the drain groove is inclinedly arranged, and the height of the bottom wall of the drain groove gradually decreases in the direction extending to the outside.

Description

Technical Field

[0001] This invention relates to the field of window technology, and in particular to a drainable combined window structure. Background Technology

[0002] With the development of curtain wall technology, large-area windows are increasingly being used in curtain wall systems due to their advantages such as good lighting and wide field of vision. Existing large-area windows are usually combined in combination to create a variety of decorative effects.

[0003] like Figure 1 As shown, this is a very common window structure in the prior art, which includes a large window 11, a small window 12 and an openable window 13. Because this combined window structure has a large area, when facing rain or other weather conditions, water is likely to accumulate at the bottom of the window frame, which can lead to water overflowing into the room. Currently, there is no good drainage measure. Summary of the Invention

[0004] This invention provides a combined window structure with drainage capability, which can effectively drain water accumulated at the bottom of the window frame and prevent water from overflowing into the room.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] An embodiment of the present invention provides a drainable combined window structure, including a first window, a second window, and an operable window; the first window includes a first glass and a first window frame surrounding the first glass, the second window includes a second glass and a second window frame surrounding the second glass, and the operable window includes an operable window and a third window frame, the operable window including a third glass and an operable window frame surrounding the third glass; the second window frame and the third window frame are both located on one side of the first window frame, and the second window frame is located below or above the third window frame; the bottom of the first window frame, the second window frame, and the third window frame are all provided with drainage holes and drainage channels, the drainage holes are located above the drainage channels and communicate with the drainage channels, the drainage channels open towards the outside, the bottom wall of the drainage channels is inclined, and the height of the bottom wall of the drainage channels gradually decreases in the direction extending outward.

[0007] In some embodiments, the second window frame is located below the third window frame, the bottom of the third window frame is integrally connected to the top of the second window frame, and the third window frame and the second window frame together form a drainage groove at the bottom of the third window frame.

[0008] In some embodiments, a central tube extending vertically is also included; the first window frame is fixed to one side of the central tube, and the second and third window frames are both fixed to the other side of the central tube.

[0009] In some embodiments, the middle tube is provided with two first fasteners on the side near the first window frame, the two first fasteners being distributed in a direction from the outside to the inside. The first window frame is provided with a first connecting groove extending in a vertical direction on the side near the middle tube, and each of the two side walls of the first connecting groove is provided with a first anti-fastening member extending towards each other. The two first fasteners are respectively fastened to the two first anti-fastening members. The middle tube is provided with two second fasteners on the side near the second and third window frames, the two second fasteners being distributed in a direction from the outside to the inside. The second window frame and the third window frame are both provided with a second connecting groove extending in a vertical direction on the side near the middle tube, and each of the two side walls of the second connecting groove is provided with a second anti-fastening member extending towards each other. The two second fasteners are respectively fastened to the two second anti-fastening members.

[0010] In some embodiments, the central tube extends to the outer side of the first window frame, the second window frame, and the third window frame facing the outside, and a limiting plate is provided on the outer side of the central tube facing the outside. The limiting plate is located on the outer side of the first window frame, the second window frame, and the third window frame facing the outside, and sealant is filled between the limiting plate and the first window frame, between the limiting plate and the second window frame, and between the limiting plate and the third window frame.

[0011] In some embodiments, the first window frame, the second window frame, and the operable window frame each include an outer frame and an inner frame member. An outer baffle is provided on the side of the outer frame near the outside, and the inner frame member is fixed to the side of the outer frame near the inside. The outer frames of the first window frame, the second window frame, and the operable window frame respectively surround the first glass, the second glass, and the third glass. The outer baffle and the inner frame member of the first window frame, the second window frame, and the operable window frame respectively clamp the first glass, the second glass, and the third glass from the outside and the inside.

[0012] In some embodiments, the outer frame of the first window frame, the outer frame of the second window frame, and the third window frame each include two first frame edges extending in a horizontal direction and two second frame edges extending in a vertical direction. The two second frame edges are fixedly connected to the two first frame edges by screws. The first frame edges are provided with a plurality of threaded holes extending in a horizontal direction. The inner walls of the threaded holes are provided with a plurality of grooves. The screws pass through the second frame edges and are fixed in the threaded holes.

[0013] In some embodiments, the second window frame further includes two vertically extending connectors, with the outer frame of the second window frame located between the two connectors and connected to the connectors; the connectors include an inner connecting plate located on its interior side, the inner connecting plate extending toward and abutting against the inner frame of the second window frame, so that when viewed from inside, the connectors and the inner frame of the second window frame enclose the outer frame of the second window frame.

[0014] In some embodiments, the inner connecting plate has a slot on the side facing the outside, and the outer frame of the second window frame has a fastener adapted to the slot, the fastener being engaged in the slot; the outer frame of the second window frame also includes a plurality of support plates extending toward the connector, the support plates abutting against the connector; the connector also includes an outer connecting plate located on its side closer to the outside, the outer baffle of the outer frame of the second window frame abutting against the outer connecting plate.

[0015] In some embodiments, the first glass, the second glass, and the third glass are all located on the same plane, the inner surfaces of the first window frame, the second window frame, and the third window frame near the interior are all located on the same plane, and the outer surfaces of the first window frame, the second window frame, and the third window frame near the exterior are all located on the same plane.

[0016] The present invention has at least the following beneficial effects: The bottom of the first, second, and third window frames are provided with drainage holes and drainage channels. The drainage holes are located above and connected to the drainage channels. The drainage channels open towards the outside, and the bottom walls of the drainage channels are inclined, with the height of the bottom walls gradually decreasing in the direction extending outwards. When encountering rainy weather, water on the first, second, and operable windows will flow towards the bottom of their window frames. The drainage holes can drain the accumulated water at the bottom of the first, second, and third window frames. After flowing out of the drainage holes, the accumulated water drips into the drainage channels. Due to the inclined bottom walls of the drainage channels, the water then flows outwards along the bottom walls of the drainage channels, effectively draining the accumulated water at the bottom of the window frames and preventing water from overflowing into the room. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a window in the prior art;

[0018] Figure 2 This is a schematic diagram of a drainable combined window structure according to an embodiment of the present invention;

[0019] Figure 3 for Figure 2 A cross-sectional view showing the section cut along section line AA and rotated 90° counterclockwise.

[0020] Figure 4 for Figure 2 A cross-sectional view showing the section cut along section line BB and rotated 90° counterclockwise.

[0021] Figure 5 for Figure 2 A cross-sectional view taken along section line 1-1.

[0022] Figure 6 for Figure 2 A cross-sectional view taken along section line 2-2.

[0023] Figure 7 This is a cross-sectional schematic diagram of the connection between the second and third windows according to an embodiment of the present invention;

[0024] Figure 8 This is a cross-sectional view of the bottom position of the second window according to an embodiment of the present invention;

[0025] Figure 9 This is a cross-sectional schematic diagram of the connection between the first window and the second window according to an embodiment of the present invention;

[0026] Figure 10 This is a partial cross-sectional schematic diagram of the second window according to an embodiment of the present invention;

[0027] Figure 11 for Figure 5 Enlarged diagram of point C in the middle.

[0028] The attached figures are labeled as follows:

[0029] Large window 11, small window 12, openable window 13, drainage hole 14, drainage groove 15;

[0030] First window frame 100, threaded hole 101, groove 102, outer frame 110, outer baffle 111, fastener 112, support plate 113, inner frame 120;

[0031] Second window frame 200, connector 210, inner connecting plate 211, slot 212, outer connecting plate 213;

[0032] Third window frame 300;

[0033] Openable window frame 400;

[0034] First glass 510, second glass 520, third glass 530;

[0035] The components are: central tube 600, first connecting groove 601, second connecting groove 602, first locking piece 610, second locking piece 620, first reverse fastener 630, second reverse fastener 640, limit plate 650, and sealant 660. Detailed Implementation

[0036] The present invention is provided below with reference to the accompanying drawings to aid in a full understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0037] In the description of this invention, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0039] Embodiments of the present invention provide a drainable modular window structure, such as... Figure 2-6 As shown, where, due to Figure 2 The sectional views taken along section line AA and section line BB are both relatively slender in the transverse direction. Therefore, both views are rotated 90° counterclockwise to clearly observe the window structure. This drainable, modular window structure includes a first window, a second window, and an operable window. The first window includes a first glass pane 510 and a first window frame 100 surrounding the first glass pane 510 to secure it. The second window includes a second glass pane 520 and a second window frame 200 surrounding the second glass pane 520 to secure it. The operable window includes an operable window and a third window frame 300. The operable window includes a third glass pane 530 and an operable window frame 400 surrounding the third glass pane 530. The operable window frame 400 secures the third glass pane 530, and the entire operable window can be opened by rotation, translation, or other means relative to the third window frame 300. The second window frame 200 and the third window frame 300 are both located on one side of the first window frame 100, and the second window frame 200 is located below or above the third window frame 300, forming a combined structure.

[0040] like Figure 5 , Figure 7 and Figure 8 As shown, drainage holes 14 and drainage channels 15 are provided at the bottom of the first window frame 100, the bottom of the second window frame 200, and the bottom of the third window frame 300. The drainage holes 14 are located above the drainage channels 15 and communicate with the drainage channels 15. The drainage channels 15 open towards the outside. Figure 5 , Figure 7 and Figure 8(The right side of the image represents the outdoors, and the left side represents the indoors). The bottom wall of the drainage trough 15 is inclined, and its height gradually decreases as it extends outdoors. During rainy weather, water on the first window frame, the second window frame, and the operable window frame flows towards the bottom of their frames. The drainage hole 14 allows water to drain from the bottom of the first window frame 100, the second window frame 200, and the third window frame 300. After flowing out of the drainage hole 14, the water drips into the drainage trough 15. Due to the inclined bottom wall of the drainage trough 15, the water then drains outdoors along the bottom wall, effectively draining water from the bottom of the first window frame 100, the second window frame 200, and the third window frame 300, preventing water from overflowing into the room and achieving a good drainage effect.

[0041] In some embodiments, the second window frame 200 is located below the third window frame 300, and the bottom of the third window frame 300 is integrally connected to the top of the second window frame 200. The two can be integrally molded, which reduces the use of connectors, simplifies the overall assembly structure, and provides higher structural strength, making it less likely for the third window frame 300 and the second window frame 200 to separate. The third window frame 300 and the second window frame 200 together form a drainage groove 15 at the bottom of the third window frame 300. The drainage groove 15 can be integrally molded to eliminate the need for grooving, and it is relatively more concealed when viewed from the outside.

[0042] In some embodiments, such as Figure 2-6 As shown, the drainable modular window structure also includes a central tube 600 extending vertically. The first window frame 100 is fixed to one side of the central tube 600, and the second window frame 200 and the third window frame 300 are connected, with both the second window frame 200 and the third window frame 300 fixed to the other side of the central tube 600.

[0043] by Figure 2 For example, the first window frame 100 is fixed to the left side of the central tube 600, and the second window frame 200 and the third window frame 300 are both fixed to the right side of the central tube 600, with the second window frame 200 located below the third window frame 300. Of course, depending on actual needs, the first window frame 100 can be fixed to the right side of the central tube 600, and the second window frame 200 and the third window frame 300 can both be fixed to the left side of the central tube 600, with the second window frame 200 located below the third window frame 300; or, the first window frame 100 can be fixed to the left side of the central tube 600, and the second window frame 200 and the third window frame 300 can both be fixed to the right side of the central tube 600, with the second window frame 200 located above the third window frame 300; or, the first window frame 100 can be fixed to the right side of the central tube 600, and the second window frame 200 and the third window frame 300 can both be fixed to the left side of the central tube 600, with the second window frame 200 located above the third window frame 300.

[0044] Since the first window, the second window, and the operable window all have their own window frames, and the central tube 600 is not integrally formed with the window frames, the relative positions of the central tube 600, the first window, the second window, and the operable window can be freely combined. Different widths of the first window frame 100 can be selected to connect with the central tube 600, or different widths of the second window and / or the operable window can be selected to connect with the central tube 600. This allows for free configuration of the windows on both sides of the central tube 600, improving the flexibility of the combination method and enhancing the user experience.

[0045] In some embodiments, such as Figure 3 and Figure 9 As shown, two first clips 610 are provided on the side of the central tube 600 near the first window frame 100, and the two first clips 610 are arranged in the direction from the outside to the inside. Figure 9 The first window frame 100 has a vertically extending first connecting groove 601 on the side near the central tube 600. Each of the two side walls of the first connecting groove 601 has a first counter-fastening member 630 extending towards each other. The two first counter-fastening members 630 are respectively adapted to two first locking members 610, and the two first locking members 610 are respectively engaged with the two first counter-fastening members 630 to connect the first window frame 100 and the central tube 600, facilitating assembly. Specifically, the two first locking members 610 extend between the two first counter-fastening members 630 and then engage with them. Because the two first locking members 610 are distributed in a direction from the outside to the inside, the side of the first window frame 100 closest to the inside and the side closest to the outside can be stably installed onto the central tube 600.

[0046] Two second fasteners 620 are provided on the side of the central tube 600 near the second window frame 200 and the third window frame 300. The two second fasteners 620 are distributed in the direction from the outside to the inside. Both the side of the second window frame 200 near the central tube 600 and the side of the third window frame 300 near the central tube 600 are provided with a second connecting groove 602 extending vertically. Each of the two side walls of the second connecting groove 602 is provided with a second anti-fastening member 640 extending towards each other. The two second anti-fastening members 640 are... The two second clips 620 on the second window frame 200 and the two second clips 620 on the third window frame 300 are adapted to each other. The two second clips 620 respectively engage with the two second reverse fasteners 640 on the second window frame 200, and also with the two second reverse fasteners 640 on the third window frame 300, thus connecting the second window frame 200 and the central tube 600, and the third window frame 300 and the central tube 600 by a snap-fit ​​method, facilitating assembly. Specifically, the two second clips 620 extend between the two second reverse fasteners 640 and then engage with them. Since the two second clips 620 are distributed along the direction from the outside to the inside, the sides of the second window frame 200 (near the inside) and the third window frame 300 (near the inside) can be stably installed onto the central tube 600.

[0047] Furthermore, the central tube 600 extends to the outer side of the first window frame 100 facing outwards, to the outer side of the second window frame 200 facing outwards, and to the outer side of the third window frame 300 facing outwards. A limiting plate 650 is provided on the outer side of the central tube 600 facing outwards. The limiting plate 650 is located on the outer side of the first window frame 100 facing outwards, to the outer side of the second window frame 200 facing outwards, and to the outer side of the third window frame 300 facing outwards. Sealant 660 is filled between the limiting plate 650 and the first window frame 100, between the limiting plate 650 and the second window frame 200, and between the limiting plate 650 and the third window frame 300. The limiting plate 650 restricts the movement of the first window frame 100, second window frame 200, and third window frame 300 relative to the central tube 600 towards the outside, improving the firmness of the connection between the first window frame 100, second window frame 200, and third window frame 300 and the central tube 600. Simultaneously, the limiting plate 650 conceals the connection points between the central tube 600 and the first window frame 100, second window frame 200, and third window frame 300, providing some protection and enhancing the aesthetics when viewed from the outside. The sealant 660 improves sealing and prevents leakage. It also serves the purpose of connecting the limiting plate 650 to the first window frame 100, second window frame 200, and third window frame 300, further improving the firmness of the connection between the first window frame 100, second window frame 200, and third window frame 300 and the central tube 600.

[0048] In this embodiment, the first clip 610, the second clip 620, and the limiting plate 650 can all be integrally connected to the middle tube 600 so that the middle tube 600 can be manufactured as a whole.

[0049] In some embodiments, such as Figure 2-10 As shown, the first window frame 100, the second window frame 200, and the operable window frame 400 all include an outer frame 110 and an inner frame member 120. An outer baffle 111 is provided on the side of the outer frame 110 closest to the outside, and the inner frame member 120 is fixed to the side of the outer frame 110 closest to the inside. The outer frame 110 of the first window frame 100 surrounds the first glass 510, the outer frame 110 of the second window frame 200 surrounds the second glass 520, and the outer frame 110 of the operable window frame 400 surrounds the third glass 530. The outer baffle 111 and inner frame member 120 of the first window frame 100 clamp the first glass 510 from the outside and inside, respectively; the outer baffle 111 and inner frame member 120 of the second window frame 200 clamp the second glass 520 from the outside and inside, respectively; and the outer baffle 111 and inner frame member 120 of the third window frame 300 clamp the third glass 530 from the outside and inside, respectively.

[0050] When installing the glass, first place the glass on the side of the outer baffle 111 closest to the interior, then install the inner frame 120. The glass is clamped and fixed by the outer baffle 111 and the inner frame 120, allowing for installation from the interior, making installation more convenient and eliminating the dangers associated with outdoor installation. The inner frame 120 can be detachably connected to the outer frame 110 for easy installation and removal. For example, the inner frame 120 can be fixed to the outer frame 110 using a snap-fit ​​structure.

[0051] In this embodiment, the outer frame 110 of the first window frame 100 can be connected to the central tube 600. Therefore, the first connecting groove 601 and the first anti-fastening member 630 in the above embodiment are both provided on the outer frame 110 of the first window frame 100. This can reduce the number of components of the first window frame 100, simplify the structure of the first window frame 100, and make the structure of the first window frame 100 more compact.

[0052] In some embodiments, such as Figure 2-11 As shown, the outer frame 110 of the first window frame 100, the outer frame 110 of the second window frame 200, and the third window frame 300 are all square frames. Each of them includes two first frame sides extending horizontally and two second frame sides extending vertically. The two second frame sides are fixedly connected to the two first frame sides by screws, thus forming a square frame structure. The first frame sides of the outer frame 110 are provided with several threaded holes 101 extending horizontally. The inner walls of the threaded holes 101 are provided with multiple grooves 102. Screws pass through the second frame sides and are fixed in the threaded holes 101, thereby fixing the first and second frame sides together.

[0053] Meanwhile, since the inner wall of the threaded hole 101 is provided with a groove 102, during the process of screwing the screw into the threaded hole 101, the profile that falls off the inner wall of the threaded hole 101 due to the twisting friction will fill the groove 102, and then use the profile in the groove 102 to squeeze the screw, thereby increasing the friction and making the screw stably fixed in the threaded hole 101.

[0054] Multiple grooves 102 may be provided around the center of the threaded hole 101 to enhance the tightening effect of the screw. The grooves 102 may include large grooves and small grooves, with the size of the large grooves being larger than that of the small grooves. The threaded hole 101 has a structure with a notch on one side. The large grooves are relatively far away from the notch, while the small grooves are relatively close to the notch. More profile material is dislodged due to twisting and friction at the far end of the groove, while less profile material is dislodged due to twisting and friction at the close end of the groove, so that the grooves 102 can accommodate the amount of profile material and fill the grooves 102 as much as possible.

[0055] Furthermore, the cross-section of the groove 102 can be an arc-shaped structure, making it easy for the profile that falls off due to twisting friction to be inserted into the groove 102.

[0056] In some embodiments, such as Figure 4 , Figure 9 and Figure 10 As shown, the second window frame 200 also includes two vertically extending connectors 210. The outer frame 110 of the second window frame 200 is located between the two connectors 210, and the outer frame 110 of the second window frame 200 is connected to the two connectors 210 respectively. The connector 210 includes an inner connecting plate 211 located on its indoor side. The inner connecting plate 211 extends toward and abuts against the inner frame member 120 of the second window frame 200, so that when viewed from inside, the connector 210 and the inner frame member 120 of the second window frame 200 cover the outer frame 110 of the second window frame 200, achieving the effect of hiding the outer frame 110. This provides a certain degree of protection for the outer frame 110. At the same time, when viewed from inside, since the outer frame 110 is not visible, only the inner connecting plate 211 and the inner frame member 120 are abutting together, making the indoor side of the second window frame 200 flatter and more aesthetically pleasing.

[0057] Furthermore, the inner connecting plate 211 has a slot 212 on its exterior-facing side, and the outer frame 110 of the second window frame 200 has a fastener 112 that matches the slot 212, which engages in the slot 212. The outer frame 110 of the second window frame 200 also includes multiple support plates 113 extending toward the connector 210, which abut against the connector 210. The connector 210 also includes an outer connecting plate 213 located on its exterior-facing side, and the outer baffle 111 of the outer frame 110 of the second window frame 200 abuts against the outer connecting plate 213. Thus, the exterior frame 110 of the second window frame 200 is connected to the connector 210 via a snap-fit ​​connection on the interior-facing side, while the exterior-facing side is limited by abutment, reducing the use of screws and other fasteners and facilitating overall assembly.

[0058] Furthermore, the outer connecting plate 213 and the inner connecting plate 211 of the connector 210 near the central tube 600 both extend towards the central tube 600, forming a second connecting groove 602 between the outer connecting plate 213 and the inner connecting plate 211 near the central tube 600. Two second buckles 640 are respectively provided on the inner sides of the outer connecting plate 213 and the inner connecting plate 211 opposite to each other, thereby enabling the connector 210 to be connected to the central tube 600, simplifying the structure of the second window frame 200 and making the structure of the second window frame 200 more compact.

[0059] In some embodiments, such as Figure 2-6 As shown, the first glass 510, the second glass 520, and the third glass 530 are all located on the same plane. The inner surfaces of the first window frame 100, the second window frame 200, and the third window frame 300, which are closest to the interior, are all located on the same plane. The outer surfaces of the first window frame 100, the second window frame 200, and the third window frame 300, which are closest to the exterior, are all located on the same plane. This ensures that the entire combined window structure remains flat when viewed from both inside and outside the room.

[0060] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the invention. Therefore, those skilled in the art will understand that the foregoing description of various embodiments of the invention is illustrative only and not intended to limit the invention as defined by the appended claims and their equivalents.

Claims

1. A drainable modular window structure, characterized in that: The system includes a first window, a second window, and an operable window. The first window includes a first glass pane and a first window frame surrounding the first glass pane. The second window includes a second glass pane and a second window frame surrounding the second glass pane. The operable window includes an operable window and a third window frame. The operable window includes a third glass pane and an operable window frame surrounding the third glass pane. The second and third window frames are both located on one side of the first window frame, with the second window frame located below or above the third window frame. The bottom of the first, second, and third window frames is provided with a drainage hole and a drainage channel. The drainage hole is located above the drainage channel and communicates with the drainage channel. The drainage channel opens towards the outside, and the bottom wall of the drainage channel is inclined, with the height of the bottom wall of the drainage channel gradually decreasing in the direction extending outward. It also includes a central tube extending vertically; the first window frame is fixed to one side of the central tube, and the second and third window frames are both fixed to the other side of the central tube; Two first fasteners are provided on the side of the central tube near the first window frame. The two first fasteners are distributed in the direction from the outside to the inside. A first connecting groove extending vertically is provided on the side of the first window frame near the central tube. Each side wall of the first connecting groove is provided with a first counter-fastener extending towards each other. The two first fasteners are respectively fastened to the two first counter-fasteners. Two second fasteners are provided on the side of the central tube near the second and third window frames. The two second fasteners are distributed in the direction from the outside to the inside. A second connecting groove extending vertically is provided on the side of the second window frame near the central tube and the side wall of the third window frame near the central tube. Each side wall of the second connecting groove is provided with a second counter-fastener extending towards each other. The two second fasteners are respectively fastened to the two second counter-fasteners. The first window frame, the second window frame, and the operable window frame all include an outer frame and an inner frame. An outer baffle is provided on the side of the outer frame closest to the outside, and the inner frame is fixed to the side of the outer frame closest to the inside. The outer frames of the first window frame, the second window frame, and the operable window frame are respectively arranged around the first glass, the second glass, and the third glass. The outer baffle and the inner frame of the first window frame, the second window frame, and the operable window frame clamp the first glass, the second glass, and the third glass from the outside and the inside, respectively. The second window frame also includes two vertically extending connectors, with the outer frame of the second window frame located between the two connectors and connected to the connectors; each connector includes an inner connecting plate located on its interior side, the inner connecting plate extending toward and abutting against the inner frame of the second window frame, so that when viewed from inside, the connectors and the inner frame of the second window frame enclose the outer frame of the second window frame; The inner connecting plate has a slot on its outdoor side, and the outer frame of the second window frame has a fastener that matches the slot. The fastener engages in the slot. The outer frame of the second window frame also includes multiple support plates extending toward the connector, which abut against the connector. The connector also includes an outer connecting plate on its outdoor side, and the outer baffle of the outer frame of the second window frame abuts against the outer connecting plate. Both the outer connecting plate and the inner connecting plate of the connector near the central tube extend toward the central tube, and a second connecting groove is formed between the outer connecting plate and the inner connecting plate of the connector near the central tube. Two second counter-fasteners are respectively provided on the inner sides of the outer connecting plate and the inner connecting plate opposite to each other.

2. The drainable combined window structure according to claim 1, characterized in that: The second window frame is located below the third window frame. The bottom of the third window frame is integrally connected to the top of the second window frame. The third window frame and the second window frame together form a drainage groove at the bottom of the third window frame.

3. The drainable combined window structure according to claim 1, characterized in that: The central tube extends to the outer side of the first, second, and third window frames facing the outside, and a limiting plate is provided on the outer side of the central tube facing the outside. The limiting plates are respectively located on the outer side of the first, second, and third window frames facing the outside. Sealant is filled between the limiting plate and the first window frame, between the limiting plate and the second window frame, and between the limiting plate and the third window frame.

4. The drainable combined window structure according to claim 1, characterized in that: The outer frame of the first window frame, the outer frame of the second window frame, and the third window frame all include two first frame edges extending in the horizontal direction and two second frame edges extending in the vertical direction. The two second frame edges are fixedly connected to the two first frame edges by screws. The first frame edges are provided with a plurality of threaded holes extending in the horizontal direction. The inner wall of the threaded holes is provided with a plurality of grooves. The screws pass through the second frame edges and are fixed in the threaded holes.

5. The drainable combined window structure according to any one of claims 1-4, characterized in that: The first glass, the second glass, and the third glass are all located on the same plane. The inner surfaces of the first window frame, the second window frame, and the third window frame that are close to the interior are all located on the same plane. The outer surfaces of the first window frame, the second window frame, and the third window frame that are close to the exterior are all located on the same plane.

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