Sunroof

Abstract

The present invention discloses a skylight, which includes a window frame having more than one window, and a window sash is installed in each window. The window sash includes a sash frame and a window panel installed in the sash frame. At least part of the sash frame is not higher than the top surface of the window panel to form a drainage channel for draining water on the top surface of the window panel. The present invention has the advantages of simple production, low cost, good waterproof performance, long service life, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of doors and windows, and particularly relates to a skylight. Background Art

[0002] Skylights are usually provided on building roofs and the like for ventilation and / or lighting. A skylight generally consists of a window frame and a window sash. The window sashes of existing skylights are composed of a sash frame and a window panel. The four peripheral edges of the window panel are inserted and installed in the annular groove of the sash frame, and then a sealing ring is used to seal the gap between the window panel and the window sash. There is an annular stop edge distributed around the top surface of the window panel in the window sash with this structure. This annular stop edge will cause water to accumulate on the top surface of the window panel and cannot be discharged in time, resulting in the water accumulated on the top surface of the window panel being likely to penetrate through the sealing ring into the interior of the skylight (especially when the sealing ring ages and there are errors in the manufacturing, installation, and assembly of the window sash structure). This will reduce the sealing performance, waterproof performance, and service life of the skylight.

[0003] Meanwhile, to ensure the sealing performance between the window sash and the window frame, a sealing component needs to be provided to seal the gap between the window sash and the window frame. Especially for openable skylights, the sealing performance requirements for the sealing component are very high. However, in existing skylights, only a sealing ring is pressed between the window sash and the window frame for sealing. External water is likely to enter the gap between the window sash and the window frame and accumulate, resulting in the accumulated water still penetrating through the sealing ring into the interior of the skylight (especially when the sealing ring ages and there are errors in the manufacturing, installation, and assembly of the skylight structure). This will also reduce the sealing performance, waterproof performance, and service life of the skylight. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a skylight with simple manufacturing, low cost, good waterproof performance, and long service life.

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

[0006] A skylight, comprising a window frame having more than one window, and a window sash is installed in each window. The window sash includes a sash frame and a window panel installed in the sash frame. At least part of the sash frame is not higher than the top surface of the window panel to form a drainage channel for discharging the water on the top surface of the window panel.

[0007] As a further improvement of the above technical solution:

[0008] The whole sash frame is not higher than the top surface of the window panel.

[0009] The sash frame has an annular positioning portion surrounding the periphery of the window panel.

[0010] The annular positioning portion and the end faces around the four sides of the window panel are connected by a first fireproof sealant.

[0011] The fan frame has an annular support portion for supporting the bottom surface of the window pane, and the annular support portion is connected to the bottom surface of the window pane through a second fireproof sealant.

[0012] A first fireproof cotton is provided between the annular positioning portion and the peripheral end surfaces of the window pane and / or between the annular support portion and the bottom surface of the window pane.

[0013] The fan frame has an installation structure for installing and positioning the window pane. The installation structure includes an upper pressing portion, a lower support portion, and a side positioning portion. The upper pressing portion and the lower support portion are connected to both sides of the side positioning portion to form an annular groove, and the four peripheral edges of the window pane are installed in the annular groove. The upper pressing portion is located above the top surface of the window pane, and a notch not higher than the top surface of the window pane is provided on the upper pressing portion to form the drainage channel.

[0014] The window pane is arranged obliquely with respect to the horizontal plane, and the fan frame has the drainage channel at least at the low end position of the window pane.

[0015] The lower support portion and the side positioning portion are connected as a whole, and the upper pressing portion is detachably connected to the side positioning portion.

[0016] The upper pressing portion is connected to the top surface of the window pane and the lower support portion is connected to the bottom surface of the window pane through a third fireproof sealant.

[0017] A second fireproof cotton is provided between the upper pressing portion and the top surface of the window pane and / or between the lower support portion and the bottom surface of the window pane.

[0018] One or more waterproof mechanisms are provided between each window sash and the window frame. The waterproof mechanism includes an annular water blocking portion provided on the window frame and a convex ring portion provided on the fan frame of the window sash. The annular water blocking portion is inserted into the convex ring portion in the direction from bottom to top.

[0019] The annular water blocking portion is an annular protruding structure that is integrally connected to the window frame and extends upward from the window frame.

[0020] The convex ring portion is an annular protruding structure that is integrally connected to the fan frame and extends downward from the fan frame.

[0021] The top of the window frame serves as the annular water blocking portion as a whole, and the top surface of the annular water blocking portion is an inclined surface that extends obliquely downward from the inner side to the outer side of the window frame.

[0022] The bottom of the fan frame serves as the convex ring portion as a whole, and the bottom surface of the convex ring portion is an inclined surface that extends obliquely downward from the inner side to the outer side of the fan frame.

[0023] The window frame includes a main frame and a sub-frame connected to the main frame through fasteners, and the annular water blocking portion is provided on the sub-frame.

[0024] The main frame is formed by connecting several main beams. The skylight has more than two windows, and at least two adjacent windows are separated by one of the main beams. The sub-frame is composed of more than one sub-frame, and each sub-frame corresponds to form one of the windows. The sub-frames of two adjacent windows are both connected to the main beam separating the two adjacent windows through fasteners.

[0025] The window sash is installed on the window frame in an openable manner.

[0026] The window sash is hinged and installed on the window frame and can open and close around the hinge axis. A window closer for driving the window sash to open and close is provided between the window frame and the window sash.

[0027] A fireproof sealing ring is installed between the sash frame of each window sash and the window frame.

[0028] More than two waterproof mechanisms are provided between the window frame and the window sash and are arranged in sequence from outside to inside. The fireproof sealing ring is installed between two of the waterproof mechanisms.

[0029] The top surface heights of the annular water-blocking parts of more than two waterproof mechanisms increase one by one along the direction from outside to inside.

[0030] Compared with the prior art, the advantages of the present invention are as follows: In the skylight of the present invention, there is a part of the sash frame in the window sash that is not higher than the top surface of the window panel. This part that is not higher than the top surface of the window panel can form a drainage channel, enabling the water on the top surface of the window panel to be discharged in time, avoiding the problem of water accumulation on the top surface of the window panel and infiltration into the interior of the skylight, greatly improving the waterproof performance of the skylight and also greatly extending its service life. At the same time, it is only necessary to make the sash frame have a part that is not higher than the top surface of the window panel, and its production is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic top view structure diagram of the skylight in Embodiment 1.

[0032] Figure 2 It is a schematic partial cross-sectional structure diagram of the skylight in Embodiment 1.

[0033] Figure 3 It is a schematic top view structure diagram of the skylight in Embodiment 2.

[0034] Figure 4 It is a schematic partial cross-sectional structure diagram of the skylight in Embodiment 2.

[0035] Figure 5 It is a schematic partial cross-sectional structure diagram of the skylight in Embodiment 3.

[0036] Figure 6 It is a schematic partial cross-sectional structure diagram of the skylight in Embodiment 4.

[0037] LEGEND DESCRIPTION:

[0038] 1. Window frame; 11. Annular water-blocking part; 101. Main frame; 102. Sub-frame; 1021. Sub-frame; 2. Window sash; 21. Sash frame; 211. Annular positioning part; 212. Annular supporting part; 213. Upper pressing part; 2131. Notch; 214. Lower supporting part; 215. Side positioning part; 216. Annular groove; 217. Convex ring part; 22. Window panel; 23. First fireproof sealant; 24. Second fireproof sealant; 25. First fireproof cotton; 26. Third fireproof sealant; 27. Second fireproof cotton; 3. Window closer; 4. Fireproof sealing ring. Specific embodiments

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Embodiment 1:

[0041] As Figure 1 and Figure 2 shown, the skylight of this embodiment includes a window frame 1 having a window, and a window sash 2 is installed in the window. The window sash 2 includes a sash frame 21 and a window panel 22 installed in the sash frame 21. At least part of the sash frame 21 is not higher than the top surface of the window panel 22. The part of the sash frame 21 that is not higher than the top surface of the window panel 22 forms a drainage channel for draining the water on the top surface of the window panel 22. That is, the entire sash frame 21 is lower than the top surface of the window panel 22 or is flush with the top surface of the window panel 22, or at least a part of the sash frame 21 is lower than the top surface of the window panel 22 or is flush with the top surface of the window panel 22. The part of the sash frame 21 that is lower than or flush with the top surface of the window panel 22 forms a drainage channel for draining the water on the top surface of the window panel 22. Since there is a part of the sash frame 21 that is not higher than the top surface of the window panel 22, this part that is not higher than the top surface of the window panel 22 can form a drainage channel, enabling the water on the top surface of the window panel 22 to be drained in time, avoiding the problem of water accumulation on the top surface of the window panel 22 and infiltrating into the skylight interior, greatly improving the waterproof performance of the skylight and also greatly extending its service life. At the same time, it is only necessary to make the sash frame 21 have a part that is not higher than the top surface of the window panel 22, which is simple to manufacture and has a low cost.

[0042] In this embodiment, the entire sash frame 21 is lower than the top surface of the window panel 22, making the edges around the top surface of the window panel 22 all serve as drainage channels. The water on the top surface of the window panel 22 can be drained from any direction around the top surface of the window panel 22. In this way, the window panel 22 can be installed at any inclination angle and still be able to drain water in a timely and effective manner. In other embodiments, the top surface of the sash frame 21 can also be flush with the top surface of the window panel 22.

[0043] In this embodiment, the fan frame 21 has an annular positioning portion 211 surrounding the window panel 22 on all sides. The annular positioning portion 211 positions the window panel 22, enabling the window panel 22 to be assembled conveniently and quickly, and improving the stability and reliability after the installation of the window panel 22. The overall height of the annular positioning portion 211 is lower than the top surface of the window panel 22. In other embodiments, the annular positioning portion 211 may also be at the same height as the top surface of the window panel 22.

[0044] In this embodiment, the annular positioning portion 211 and the end faces on all sides of the window panel 22 are connected by a first fireproof sealant 23, which can improve the sealing performance and the stability and reliability of the installation of the window panel 22, and endow the skylight with fireproof performance. Preferably, the window panel 22 is made of a fireproof glass plate.

[0045] In this embodiment, the fan frame 21 has an annular supporting portion 212 supporting the bottom surface of the window panel 22. The annular supporting portion 212 and the bottom surface of the window panel 22 are connected by a second fireproof sealant 24, which can further improve the sealing performance, the stability and reliability of the installation of the window panel 22, and the fireproof performance.

[0046] In this embodiment, a first fireproof cotton 25 is provided between the annular positioning portion 211 and the end faces on all sides of the window panel 22 and between the annular supporting portion 212 and the bottom surface of the window panel 22, which can further improve the fireproof performance. In other embodiments, the first fireproof cotton 25 may also be provided only between the annular positioning portion 211 and the end faces on all sides of the window panel 22 or between the annular supporting portion 212 and the bottom surface of the window panel 22. Preferably, the first fireproof cotton 25 is located in the sealed space between the first fireproof sealant 23, the second fireproof sealant 24, the window panel 22 and the fan frame 21.

[0047] In this embodiment, more than one waterproof mechanism is provided between each window sash 2 and the window frame 1. The waterproof mechanism includes an annular water-blocking portion 11 provided on the window frame 1 and a convex ring portion 217 provided on the fan frame 21 of the window sash 2. The annular water-blocking portion 11 is inserted into the convex ring portion 217 (i.e., the inner side of the convex ring portion 217) in the direction from bottom to top. Since the annular water-blocking portion 11 is inserted into the convex ring portion 217 in the direction from bottom to top, when water enters the gap between the window frame 1 and the window sash 2, the annular water-blocking portion 11 plays a role in blocking water and preventing water from entering the interior of the skylight. Even if water seeps through the seals in the skylight or the seals in the skylight fail, water will not enter the interior of the skylight, completely eliminating the problem of water ingress, greatly improving the sealing and waterproof performance of the skylight, and also greatly extending the service life. At the same time, only by providing the annular water-blocking portion 11 on the window frame 1 and the convex ring portion 217 on the fan frame 21 of the window sash 2, a waterproof mechanism is formed. Its structure is simple, the cost is low, it is easy to manufacture, and the waterproof mechanism formed by the combination of the annular water-blocking portion 11 and the convex ring portion 217 has good stability and reliability, and the requirements for manufacturing and assembly are also low.

[0048] In this embodiment, the annular water retaining part 11 is an annular convex structure that is integrally connected to the window frame 1 and extends upward from the window frame 1. The annular water retaining part 11 is integrally connected to the window frame 1, which has good waterproof performance and is easy to manufacture. Preferably, the window frame 1 is a pipe fitting, and the annular water retaining part 11 is a plate-shaped part formed by squeezing and bonding a part of the pipe wall of the pipe fitting.

[0049] In this embodiment, the convex ring part 217 is an annular convex structure that is integrally connected to the sash frame 21 and extends downward from the sash frame 21. The convex ring part 217 is integrally connected to the sash frame 21, which has good waterproof performance and is easy to manufacture.

[0050] In this embodiment, the window frame 1 includes a main frame 101 and a sub-frame 102 connected to the main frame 101 by fasteners. The annular water retaining part 11 is provided on the sub-frame 102. During installation, first fix the main frame 101 of the window frame 1 on the installation base, and then connect the sub-frame 102 to the main frame 101 by fasteners. The main frame 101 and the sub-frame 102 can be manufactured separately, and the annular water retaining part 11 can be directly formed when manufacturing the sub-frame 102. This can reduce the manufacturing difficulty and cost of the window frame 1, and the main frame 101 can be connected and combined with different structures and numbers of sub-frames 102 to form window frames 1 of different specifications, which has high flexibility. The above fasteners are screws or bolts.

[0051] In this embodiment, the window sash 2 is installed on the window frame 1 in an openable manner, and the window sash 2 can be opened and closed, making the use of the skylight highly flexible. Preferably, the window sash 2 is hinged and installed on the window frame 1 and can open and close around the hinge axis. A window closer 3 for driving the opening and closing of the window sash 2 is provided between the window frame 1 and the window sash 2 to realize automatic opening and closing of the window sash 2.

[0052] In this embodiment, a fireproof sealing ring 4 is installed between the sash frame 21 of each window sash 2 and the window frame 1, which can improve the fireproof performance and sealing performance of the skylight. Preferably, more than two groups of fireproof sealing rings 4 are installed between the sash frame 21 and the window frame 1 in sequence from inside to outside to further improve the fireproof performance and sealing performance. The fireproof sealing ring 4 is preferably installed in the installation groove provided on the sash frame 21 and / or the window frame 1.

[0053] In this embodiment, there are more than two waterproof mechanisms arranged in sequence from outside to inside between the window frame 1 and the window sash 2, and the fireproof sealing ring 4 is installed between two of the waterproof mechanisms. The more than two waterproof mechanisms form multi-level waterproofing, which can further improve the waterproof performance. The fireproof sealing ring 4 is installed between two of the waterproof mechanisms, and the two waterproof mechanisms play a protective role for the fireproof sealing ring 4.

[0054] Preferably, the top surface heights of the annular water retaining parts 11 of more than two waterproof mechanisms increase successively along the direction from outside to inside. Since the higher the top surface height of the annular water retaining part 11 is, the better its waterproof effect is, the waterproof performance of more than two waterproof mechanisms increases successively along the direction from outside to inside. In this way, under the condition that the overall waterproof performance is basically not reduced, the manufacturing difficulty of the annular water retaining parts 11 with successively increasing top surface heights on the upper top surface of the window frame 1 can be reduced, and the annular water retaining parts 11 with successively increasing top surface heights are beneficial to improving the overall structural compactness. In this embodiment, there are two waterproof mechanisms between the window frame 1 and the window sash 2. The annular water retaining part 11 in the outer waterproof mechanism is a boss structure protruding upward from the middle position at the top of the window frame 1, and the convex ring part 217 in the outer waterproof mechanism is a plate-like structure extending downward from the outer edge of the sash frame 21. The annular water retaining part 11 in the inner waterproof mechanism is a plate-like structure extending upward from the inner edge of the window frame 1, and the convex ring part 217 in the inner waterproof mechanism is a boss structure protruding upward from the middle position at the top of the sash frame 21. Further preferably, the convex ring part 217, the outer side surface of the sash frame 21 and the outer side surface of the window frame 1 in the outer waterproof mechanism are flush, and the annular water retaining part 11, the inner side surface of the window frame 1 and the inner side surface of the sash frame 21 in the inner waterproof mechanism are flush, which can improve the aesthetics.

[0055] This embodiment is described by taking the window frame 1 with only one window as an example. In other embodiments, the window frame 1 can also be provided with more than two windows, and one window sash 2 is installed in each window. Drainage channels are respectively provided on the sash frames 21 of the window sashes 2, and waterproof mechanisms are respectively arranged between each window sash 2 and the window frame 1.

[0056] Embodiment 2:

[0057] The skylight of this embodiment is basically the same as that of Embodiment 1. The main difference is that, as Figure 3 and Figure 4 shown, in this embodiment, the sash frame 21 has an installation structure for installing and positioning the window panel 22. The installation structure includes an upper pressing part 213, a lower supporting part 214 and a side positioning part 215. The upper pressing part 213 and the lower supporting part 214 are connected to both sides of the side positioning part 215 to form an annular groove 216. The four peripheral edges of the window panel 22 are installed in the annular groove 216. The upper pressing part 213 is located above the top surface of the window panel 22, and a notch 2131 not higher than the top surface of the window panel 22 is provided on the upper pressing part 213 to form a drainage channel. The lower supporting part 214 is located below the bottom surface of the window panel 22. The structure of the window sash 2 in this embodiment has high structural stability and reliability.

[0058] In this embodiment, the lower support portion 214 and the side positioning portion 215 are connected as a whole, and the upper pressing portion 213 is detachably connected to the side positioning portion 215. This type of window frame 21 facilitates the assembly and disassembly of the window panel 22, and can reduce the manufacturing and assembly difficulty and cost. The above-mentioned upper pressing portion 213 is L-shaped. One side of the L-shaped upper pressing portion 213 is fitted to the outer side surface around the side positioning portion 215 and is detachably connected to the side positioning portion 215. The other side of the L-shaped upper pressing portion 213 presses the top surface of the window panel 22, which can prevent water from entering the gap between the side positioning portion 215 and the upper pressing portion 213. Preferably, the above-mentioned upper pressing portion 213 is made of a steel part, and the upper pressing portion 213 is detachably connected to the side positioning portion 215 by bolts.

[0059] In this embodiment, the upper pressing portion 213 and the top surface of the window panel 22, as well as the lower support portion 214 and the bottom surface of the window panel 22, are connected by a third fireproof sealant 26. The structure of this type of window sash 2 is stable and reliable, and has fireproof performance.

[0060] In this embodiment, a second fireproof cotton 27 is provided between the upper pressing portion 213 and the top surface of the window panel 22 and / or between the lower support portion 214 and the bottom surface of the window panel 22, which can improve the fireproof performance. Preferably, the second fireproof cotton 27 is arranged in the sealed space surrounded by the upper pressing portion 213, the lower support portion 214, the side positioning portion 215 and the window panel 22. Further preferably, the second fireproof cotton 27 is provided between the upper pressing portion 213 and the top surface of the window panel 22 and between the lower support portion 214 and the bottom surface of the window panel 22.

[0061] In this embodiment, only one notch 2131 is provided on the upper pressing portion 213 to form a drainage channel. In other embodiments, multiple notches 2131 are also provided on the upper pressing portion 213 to form multiple drainage channels. The positions of the respective notches 2131 are preferably arranged at uniform intervals around the window panel 22.

[0062] When the window panel 22 is arranged obliquely with respect to the horizontal plane, the window frame 21 has a drainage channel at least at the lower end position of the window panel 22. Preferably, there is only a drainage channel at the lower end position of the window panel 22, because the water at the upper end position of the window panel 22 can flow downward along the top surface of the window panel 22 and be effectively discharged through the drainage channel located at the lower end position of the window panel 22.

[0063] Embodiment 3:

[0064] The skylight of this embodiment is basically the same as that of Embodiment 2. The main difference is that, as Figure 5As shown in the figure, in this embodiment, the top of the window frame 1 is integrally used as an annular water retaining part 11, and the top surface of the annular water retaining part 11 is an inclined surface extending obliquely downward from the inner side to the outer side of the window frame 1. The inclined top surface of the annular water retaining part 11 can guide the water entering between the window frame 1 and the window sash 2 to drain outwards, avoiding water accumulation between the window frame 1 and the window sash 2, further improving the waterproof performance, and preventing the accumulated water from contacting the fireproof sealing ring 4 for a long time, which may affect the performance and lifespan of the fireproof sealing ring 4.

[0065] In this embodiment, the bottom of the sash frame 21 is integrally used as a convex ring part 217, and the bottom surface of the convex ring part 217 is an inclined surface extending obliquely downward from the inner side to the outer side of the sash frame 21. The inclined bottom surface of such a convex ring part 217 can better cooperate with the inclined top surface of the annular water retaining part 11, making the gap between the window frame 1 and the sash frame 21 smaller, more uniform, and beneficial to improving the aesthetics, sealing performance, and waterproof performance. Preferably, the inclined bottom surface of the convex ring part 217 is parallel to the inclined top surface of the annular water retaining part 11.

[0066] In this embodiment, a total of two fireproof sealing rings 4 are provided, and both of the two fireproof sealing rings 4 are pressed between the top surface of the annular water retaining part 11 and the bottom surface of the convex ring part 217. Preferably, the two fireproof sealing rings 4 are respectively installed on the top surface of the annular water retaining part 11 and the bottom surface of the convex ring part 217.

[0067] Embodiment 4:

[0068] The skylight of this embodiment is basically the same as that of Embodiment 3. The main difference is that, as Figure 6 shown, in this embodiment, the main frame 101 is formed by connecting several main beams, and the skylight has more than two windows. At least two adjacent windows are separated by a main beam. The sub-frame 102 is composed of more than one sub-frame 1021. Each sub-frame 1021 forms a corresponding window. The sub-frames 1021 of two adjacent windows are both connected to the main beam separating the two adjacent windows through fasteners. Refer to Figure 4 , Figure 4 which is a cross-sectional view of the connection position between the sub-frames 1021 of two adjacent windows and the main beam separating the two adjacent windows. This can save the number of main beams in the main frame 101, reduce the cost, simplify the installation, and enable two adjacent windows to be arranged closer to each other.

[0069] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art of this technology, the improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A skylight comprising a window frame (1) having more than one window, each window being provided with a window sash (2), characterized in that; The window sash (2) comprises a sash frame (21) and a window panel (22) mounted in the sash frame (21); the sash frame (21) is at least partially not higher than the top surface of the window panel (22) to form a drainage channel for draining water from the top surface of the window panel (22); the sash frame (21) has a mounting structure for mounting and positioning the window panel (22); the mounting structure comprises an upper pressing portion (213), a lower supporting portion (214) and a side positioning portion (215); the upper pressing portion (213) and the lower supporting portion (214) are connected to each other. An annular groove (216) is formed on both sides of the side positioning portion (215), and the four edges of the window plate (22) are installed in the annular groove (216). The upper pressing portion (213) is located above the top surface of the window plate (22), and a notch (2131) not higher than the top surface of the window plate (22) is provided on the upper pressing portion (213) to form the drainage channel; the lower supporting portion (214) and the side positioning portion (215) are connected as a whole, and the upper pressing portion (213) is connected in a detachable manner. On the side positioning portion (215); the upper pressing portion (213) is L-shaped, one side of the L-shaped upper pressing portion (213) is attached to the outer side surfaces around the side positioning portion (215) and is detachably connected to the side positioning portion (215), and the other side of the L-shaped upper pressing portion (213) presses the top surface of the window plate (22); one or more waterproof mechanisms are provided between each window sash (2) and the window frame (1), and the waterproof mechanism includes an annular water retaining portion (11) provided on the window frame (1) and a sash frame (21) provided on the window sash (2). The convex ring portion (217) on the window frame (1) is inserted into the convex ring portion (217) in a direction from bottom to top; the top of the window frame (1) as a whole serves as the convex ring portion (217), and the top surface of the convex ring portion (11) is a slope extending downward from the inner side of the window frame (1) to the outer side; the bottom of the sash frame (21) as a whole serves as the convex ring portion (217), and the bottom surface of the convex ring portion (217) is a slope extending downward from the inner side of the sash frame (21) to the outer side; The upper pressing portion (213) and the top surface of the window panel (22), as well as the lower supporting portion (214) and the bottom surface of the window panel (22), are connected via a third fireproof sealant (26); A second fireproof cotton (27) is provided between the upper pressing portion (213) and the top surface of the window panel (22) and / or between the lower supporting portion (214) and the bottom surface of the window panel (22); The window frame (1) comprises a main frame (101) and a sub-frame (102) connected to the main frame (101) via fasteners, and the annular water retaining portion (11) is provided on the sub-frame (102); The main frame (101) is formed by connecting a plurality of main beams. The skylight has more than two windows, and at least two adjacent windows are separated by one of the main beams. The secondary frame (102) is composed of more than one sub-frame (1021), and each sub-frame (1021) forms a corresponding window. The sub-frames (1021) of two adjacent windows are connected to the main beam separating the two adjacent windows through fasteners.

2. The skylight according to claim 1, characterized in that; The sash frame (21) as a whole is not higher than the top surface of the window panel (22).

3. The skylight according to claim 2, characterized in that; The sash frame (21) has an annular positioning portion (211) surrounding the window plate (22).

4. The skylight according to claim 3, characterized in that; The annular positioning portion (211) is connected to the peripheral end surfaces of the window panel (22) via a first fireproof sealant (23).

5. The skylight according to claim 4, characterized in that; The sash frame (21) has an annular support portion (212) for supporting the bottom surface of the window panel (22), and the annular support portion (212) and the bottom surface of the window panel (22) are connected via a second fireproof sealant (24).

6. The skylight according to claim 5, characterized in that; A first fireproof cotton (25) is provided between the annular positioning portion (211) and the peripheral end surfaces of the window panel (22) and / or between the annular supporting portion (212) and the bottom surface of the window panel (22).

7. The skylight according to claim 1, characterized in that; The window panel (22) is arranged tilted relative to a horizontal plane, and the sash frame (21) has the drainage channel at least at a lower end position of the window panel (22).

8. The skylight according to any one of claims 1 to 7, characterized in that; The annular water retaining portion (11) is an annular protruding structure integrally connected to the window frame (1) and extending upward from the window frame (1).

9. The skylight according to any one of claims 1 to 7, characterized in that; The convex ring portion (217) is an annular protruding structure integrally connected to the fan frame (21) and extending downward from the fan frame (21).

10. The skylight according to any one of claims 1 to 7, characterized in that; The window sash (2) is mounted on the window frame (1) in an openable manner.

11. The skylight according to claim 10, characterized in that; The window sash (2) is hingedly mounted on the window frame (1) and can be opened and closed around a hinge axis. A window closer (3) for driving the window sash (2) to open and close is provided between the window frame (1) and the window sash (2).

12. The skylight according to any one of claims 1 to 7, characterized in that; A fireproof sealing ring (4) is installed between the sash frame (21) of each window sash (2) and the window frame (1).

13. The skylight according to claim 12, characterized in that; Two or more waterproof mechanisms are arranged in sequence from outside to inside between the window frame (1) and the window sash (2), and the fireproof sealing ring (4) is installed between two of the waterproof mechanisms.

14. The skylight according to claim 13, characterized in that ； The top surface heights of the annular water retaining parts (11) of the two or more waterproof mechanisms increase gradually along the direction from outside to inside.

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