High-thermal-insulation energy-saving inward-opening aluminum alloy window system

Abstract

The utility model discloses a kind of high-thermal-insulation energy-saving inner inverted aluminum alloy window systems, including window frame, window sash, first metal plate and second metal plate, window frame is made of aluminum alloy section, and central channel is provided with, window sash is made of heat-insulating aluminum alloy section, and bottom is set in channel by rotating mechanism, window sash has the closed state of covering channel, and the opening state of making channel conductive towards inner inverted;First metal plate is set to the side of window sash towards in first direction;Second metal plate is set to the side of window sash towards outward in first direction, first metal plate, second metal plate and window sash are enclosed and form closed mounting cavity, and mounting cavity is filled with thermal insulation rock wool, the preferable heat insulation performance of the utility model is utilized to thermal insulation rock wool and heat-insulating aluminum alloy section, reach the effect of thermal insulation energy-saving environmental protection, meet the demand of future green building and smart city.

Description

Technical Field

[0001] This utility model relates to the field of aluminum inward tilt-and-turn windows, specifically to a high-insulation and energy-saving inward tilt-and-turn aluminum alloy window system. Background Technology

[0002] With continuous technological innovation and development, aluminum inward tilt-and-turn windows have gradually become a common window type in high-end curtain wall systems. The unique inward tilt-and-turn opening mode of aluminum inward tilt-and-turn windows gives them better ventilation and safety, and they are widely used in office buildings, residences and other buildings.

[0003] However, the existing aluminum inward-tilting windows have poor heat insulation performance. Even after switching the aluminum inward-tilting windows to the closed state, the indoor heat preservation effect is not ideal and cannot meet people's energy-saving needs. Utility Model Content

[0004] In view of this, the present invention provides a high-insulation and energy-saving inward tilt-and-turn aluminum alloy window system to solve the problem that the existing aluminum plate inward tilt-and-turn windows have poor heat insulation performance and cannot meet the requirements of energy conservation and environmental protection.

[0005] This utility model provides a high-insulation and energy-saving inward tilting aluminum alloy window system, including:

[0006] The window frame is made of aluminum alloy profiles and has a through groove in the center;

[0007] The window sash is made of thermally broken aluminum alloy profile, and its bottom is set in the through groove through a rotating mechanism. The window sash has a closed state covering the through groove, and an open state in which it tilts inward to open the through groove.

[0008] A first metal plate is disposed on the inward side of the window sash along a first direction;

[0009] The second metal plate is disposed on the side of the window sash facing outward in the first direction, and the first metal plate, the second metal plate and the window sash form a closed mounting cavity;

[0010] Thermal insulation rock wool is installed in the mounting cavity.

[0011] The high thermal insulation and energy-saving inward tilting aluminum alloy window system according to this utility model has at least the following beneficial effects:

[0012] By installing a first metal plate and a second metal plate on both sides of the window sash along the first direction, the window sash and metal plates are combined, allowing the inward-tilting aluminum alloy window system to retain the inward-tilting opening method while also possessing the metallic luster of the metal plates. This ensures that the inward-tilting aluminum alloy window system combines aesthetics, ventilation, and safety, making it particularly suitable for high-rise office buildings, star-rated hotels, and high-end residences. Simultaneously, by filling the safety cavity with insulating rock wool and using thermally broken aluminum alloy profiles for the window sash, the superior thermal insulation performance of the insulating rock wool and thermally broken aluminum alloy profiles ensures that when the window sash is closed, it prevents indoor cold air from easily diffusing to the outside during summer when air conditioning is on, and also prevents indoor heat from easily diffusing to the outside during winter when heating is on. This avoids condensation on the surface of the first metal plate due to outdoor temperature differences, thus achieving the effects of thermal insulation, energy saving, and environmental protection.

[0013] In one optional embodiment, the second metal plate has a first straight portion formed by folding its bottom edge inward along a third direction. The first straight portion abuts against the outer end face of the window sash along a third direction and is connected by fastening screws. The second metal plate has a first L-shaped portion formed by folding its sides inward along a second direction. The first segment of the first L-shaped portion is perpendicular to the second metal plate and is connected to the second metal plate. The window frame has a first mounting groove on the inner end wall facing the second segment of the first L-shaped portion. The first mounting groove is used for inserting the second segment of the first L-shaped portion.

[0014] In one alternative embodiment, the first straight portion is provided with a countersunk hole in a third direction, the countersunk hole being used for the screw head of the fastening screw to be inserted, and a sealant is provided between the screw head of the fastening screw and the countersunk hole.

[0015] In one optional embodiment, the inner sidewalls of the window sash facing each other along the second direction are respectively provided with limiting portions, and an adhesive is filled between the limiting portions and the first metal plate, the adhesive being used to bond the limiting portions and the first metal plate.

[0016] In one alternative embodiment, the first metal plate has outwardly folded edges on both sides along the second direction to form second straight portions, and the second straight portions abut against the outer side wall of the window sash along the second direction.

[0017] In one alternative embodiment, the window sash has a positioning portion protruding from its outer side wall along the second direction, and the positioning portion abuts against the end face of the second straight portion away from the first metal plate along the first direction.

[0018] In one alternative embodiment, the window sash includes a first sash portion and a second sash portion that are separately disposed, the second sash portion being located on the side of the first sash portion facing outward in a first direction, and the first sash portion and the second sash portion being connected by a heat-insulating material.

[0019] In one alternative embodiment, the rotating mechanism includes an aluminum alloy hinge, and the bottom end of the window sash along a third direction is rotatably connected to the through groove via the aluminum alloy hinge.

[0020] In one optional embodiment, the window frame is provided with a first water-blocking sealing strip on the side wall along the first direction, and the window sash in the closed state abuts against the first water-blocking sealing strip.

[0021] And / or, the window frame is provided with a second water-blocking sealing strip on the inner sidewall along the second direction, and the window sash in the closed state abuts against the second water-blocking sealing strip;

[0022] And / or, the window frame is provided with a third water-blocking sealing strip along the inner end wall in a third direction, and the window sash in the closed state abuts against the third water-blocking sealing strip.

[0023] In one optional embodiment, the bottom wall of the through groove is recessed with a water collection trough along a third direction. When the window sash is closed, the projection of the second metal plate along the third direction falls within the range of the water collection trough. The water collection trough is provided with a drainage hole through the wall facing outward in the first direction. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a cross-sectional top view of the window sash in this embodiment when it is closed.

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 for Figure 1 Structural diagram after removing window frames and building framing;

[0028] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0029] Figure 5 This is a cross-sectional side view of the window sash in this embodiment when it is closed.

[0030] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0031] Figure 7 for Figure 5 Enlarged diagram of point D in the middle;

[0032] Figure 8 This is a cross-sectional side view of the window sash in the open state according to this embodiment.

[0033] Figure 9 This is a schematic diagram of the structure of the second metal plate in this embodiment.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100 - Window frame, 110 - First water-blocking sealing strip, 120 - Second water-blocking sealing strip, 130 - Third water-blocking sealing strip, 140 - Water collection groove, 150 - Countersunk screw, 160 - Drain hole;

[0036] 200-Window sash, 210-First mounting groove, 220-Limiting part, 230-Positioning part, 240-First sash part, 250-Second sash part, 260-Thermal insulation material, 270-Second mounting groove;

[0037] 300 - First metal plate, 310 - Adhesive, 320 - Second straight section;

[0038] 400 - Second metal plate, 410 - First straight section, 420 - Fastening screw, 430 - First L-shaped section, 431 - First segment, 432 - Second segment, 440 - Water-retaining pad, 450 - Second L-shaped section, 451 - Third segment, 452 - Fourth segment;

[0039] 500-Insulating Rock Wool;

[0040] 600 - Building keel. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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 limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0044] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0045] A high-insulation and energy-saving tilt-and-turn aluminum alloy window system according to an embodiment of the present invention includes a window frame 100, a window sash 200, a first metal plate 300, and a second metal plate 400. The window frame 100 is made of aluminum alloy profile and has a through groove in the center. The window sash 200 is made of thermally broken aluminum alloy profile and its bottom is set in the through groove through a rotating mechanism. The window sash 200 has a closed state covering the through groove and an open state tilting inward to open the through groove. The first metal plate 300 is disposed on the side of the window sash 200 facing inward along a first direction. The second metal plate 400 is disposed on the side of the window sash 200 facing outward along the first direction. The first metal plate 300, the second metal plate 400, and the window sash 200 form a closed mounting cavity, which is filled with thermal insulation rock wool 500.

[0046] This embodiment of the high-insulation and energy-saving inward-tilting aluminum alloy window system combines the window sash 200 with metal plates 300 and 400 on both sides along the first direction. This allows the inward-tilting aluminum alloy window system to retain the inward-tilting opening mechanism while also possessing the metallic sheen of the metal plates. This ensures that the inward-tilting aluminum alloy window system of this embodiment combines aesthetics, ventilation, and safety, making it particularly suitable for high-rise office buildings, star-rated hotels, and high-end residences. Furthermore, by filling the safety cavity with insulating rock wool 500 and using thermally broken aluminum alloy for the window sash 200... Made of high-quality materials, utilizing the superior thermal insulation performance of insulated rock wool 500 and thermally broken aluminum alloy profiles, when the window sash 200 of the inward-tilting aluminum alloy window system in this embodiment is switched to the closed state, on the one hand, when the air conditioner is turned on in summer, the indoor cold air is not easily diffused to the outside through the inward-tilting aluminum alloy window system of this embodiment; on the other hand, when the heating is turned on in winter, the indoor heat is not easily diffused to the outside through the inward-tilting aluminum alloy window system of this embodiment, avoiding condensation on the surface of the first metal plate 300 due to outdoor temperature differences, thereby achieving the effect of thermal insulation, energy saving and environmental protection, which meets the needs of future green buildings and smart cities.

[0047] It should be noted that, as Figure 8 As shown, in the process of switching the window sash 200 from the closed state to the open state, that is, the inward tilting opening method, refers to tilting the window sash 200 at a certain angle towards the interior along the third direction to form a small gap for ventilation, while preventing rainwater from entering the room.

[0048] It should be noted that when the window sash 200 is in the open state, the angle between the arrangement direction of the window sash 200 and the third direction is set to 15° to 35°, and in this embodiment, it is preferably 30°.

[0049] In specific applications, the first metal plate 300 and the second metal plate 400 are both made of aluminum plates, and the window frame 100 and the window sash 200 are both made of aluminum alloy, making the materials of the four similar, which helps to improve the aesthetics of the inward tilting aluminum alloy window system in this embodiment.

[0050] It can be understood that "facing inward" in the text refers to the direction towards the interior along the first direction; "facing outward" refers to the direction towards the exterior along the first direction.

[0051] Specifically, the first metal plate 300 is surface-treated by powder coating, which improves both corrosion resistance and aesthetics of the inward-tilting aluminum alloy window system of this embodiment.

[0052] Specifically, the second metal plate 400 is surface-treated by spraying fluorocarbon to improve its weather resistance and prevent fading; it also has strong corrosion resistance, which helps to maintain the aesthetics of the inward tilting aluminum alloy window system of this embodiment for a long time.

[0053] like Figures 3 to 5 as well as Figure 7 As shown, in some embodiments, the second metal plate 400 has a first straight portion 410 formed by folding its bottom edge inward along a third direction. The first straight portion 410 abuts against the outer end face of the window sash 200 along a third direction and is connected by fastening screws 420. The second metal plate 400 has a first L-shaped portion 430 formed by folding its sides inward along a second direction. The first segment 431 of the first L-shaped portion 430 is perpendicular to the second metal plate 400 and is connected to the second metal plate 400. The window frame 100 has a first mounting groove 210 on the inner end wall facing the second segment 432 of the first L-shaped portion 430. The first mounting groove 210 is used for the second segment 432 of the first L-shaped portion 430 to be inserted. This arrangement allows the first metal plate 300 and the window sash 200 to be separated, enabling them to be processed independently in the factory, effectively controlling the finished product dimensions and increasing precision. It also facilitates the filling of the insulation rock wool 500 into the installation cavity. Furthermore, by providing first L-shaped portions 430 at both ends of the second metal plate 400 along the second direction and a first straight portion 410 at the bottom of the second metal plate 400 along the third direction, the second metal plate 400 can be inserted into the window sash 200 from bottom to top along the third direction in a manner similar to a "drawer pull." The second metal plate 400 and the window sash 200 are then secured together using fastening screws 420. This improves the weather resistance of the outdoor second metal plate 400 and conceals the fastening screws 420 at the bottom of the window sash 200, enhancing the aesthetics of the tilt-and-turn aluminum alloy window system of this embodiment. Moreover, the entire assembly process requires no welding or other procedures, making it simple to operate and less prone to generating pollutants.

[0054] To further improve the sealing and waterproofing effect of this embodiment, such as Figure 4 As shown, specifically, a water-blocking pad 440 is provided between the first segment 431 of the first L-shaped part 430 and the inner end wall of the window frame 100.

[0055] like Figure 5 , Figure 6 and Figure 9As shown, specifically, the second metal plate 400 has a second L-shaped portion 450 formed by folding its top edge inward along a third direction. The third segment 451 of the second L-shaped portion 450 is perpendicular to and connected to the second metal plate 400. A second mounting groove 270 is provided on the inner end wall of the window frame 100 facing the fourth segment 452 of the second L-shaped portion 450. The second mounting groove 270 is used for inserting the fourth segment 452 of the second L-shaped portion 450. With this arrangement, during the process of inserting the second metal plate 400 into the window sash 200 from bottom to top along a third direction in a manner similar to a "drawer", when the first straight portion 410 abuts against the bottom end surface of the window sash 200, the fourth segment 452 of the second L-shaped portion 450 is inserted into the second mounting groove 270, ensuring the sealing effect of the enclosed mounting cavity.

[0056] To further improve the sealing and waterproofing effect of this embodiment, such as Figure 6 As shown, specifically, a water-blocking pad 440 is provided between the third section 451 of the second L-shaped part 450 and the inner end wall of the window frame 100.

[0057] Specifically, the first straight portion 410 has a countersunk hole extending through it in a third direction. The countersunk hole is used for the head of the fastening screw 420 to be inserted. A sealant is provided between the head of the fastening screw 420 and the countersunk hole. This ensures that after the first straight portion 410 is connected and fixed to the outer end face of the window sash 200 using the fastening screw 420, the fastening screw 420 is not exposed on the outer surface of the first straight portion 410, making this embodiment more aesthetically pleasing and compact. At the same time, the head of the fastening screw 420 is covered with sealant, which is beneficial to the sealing effect at the connection between the fastening screw 420 and the countersunk hole.

[0058] It is understood that the first direction, the second direction, and the third direction mentioned in the text refer to the width direction, the length direction, and the height direction of the window sash 200, respectively. For ease of description, these are referred to as... Figure 1 and Figure 5 The first direction, the second direction, and the third direction are described as the width direction, the length direction, and the height direction of the window sash 200, respectively.

[0059] It should be noted that, as Figure 2 As shown, the window frame 100 is connected to the building keel 600 by countersunk screws 150.

[0060] like Figure 1 and Figure 2As shown, in some embodiments, the inner sidewalls of the window sash 200 facing each other along the second direction are respectively provided with limiting portions 220. An adhesive 310 is filled between the limiting portions 220 and the first metal plate 300, and the adhesive 310 is used to bond the limiting portions 220 and the first metal plate 300. This arrangement allows the first metal plate 300 and the window sash 200 to be processed separately in the factory, effectively controlling the finished product dimensions, increasing precision, and utilizing the limiting portions 220 to support the adhesive 310, so as to glue the first metal plate 300 and the window sash 200 together. The assembly process is simpler, and there are no exposed screws, resulting in a more aesthetically pleasing appearance.

[0061] It should be noted that, compared to welding the first metal plate 300 and the window sash 200 together, the thickness of the first metal plate 300 cannot be made too thin, the welding operation is difficult and the surface of the first metal plate 300 is easily damaged. In this embodiment, the first metal plate 300 and the window sash 200 are connected together by adhesive bonding, the assembly operation is simpler, the thickness of the first metal plate 300 can be made thinner, and the surface of the first metal plate 300 will not be damaged.

[0062] In specific applications, adhesive 310 is set as silicone structural adhesive or double-sided adhesive.

[0063] like Figure 1 and Figure 2 As shown, specifically, the first metal plate 300 has outwardly folded edges on both sides along the second direction to form second straight portions 320, which abut against the outer side wall of the window sash 200 along the second direction. By forming the second straight portions 320 through folding and abutting them against the outer side wall of the window sash 200, the sealing performance of the first metal plate 300 and the window sash 200 after assembly is improved.

[0064] like Figure 2 As shown, specifically, a positioning part 230 protrudes from the outer side wall of the window sash 200 along the second direction. The positioning part 230 abuts against the end face of the second straight part 320 opposite to the first metal plate 300 along the first direction. With this arrangement, the positioning part 230 positions the first metal plate 300 on the window sash 200 to bond the first metal plate 300 and the window sash 200 together. On the other hand, the abutment of the positioning part 230 and the second straight part 320 forms a sealing and waterproof line, which helps to improve the sealing performance of the first metal plate 300 and the window sash 200 after assembly.

[0065] In some embodiments, the window sash 200 includes a first sash portion 240 and a second sash portion 250 that are separately disposed. The second sash portion 250 is located on the side of the first sash portion 240 facing outward in a first direction. The first sash portion 240 and the second sash portion 250 are connected by a thermal insulation material 260. By thermally insulating the first sash portion 240 and the second sash portion 250 with the thermal insulation material 260, it is beneficial to reduce the heat transfer between the first sash portion 240 and the second sash portion 250, and further improve the heat preservation, energy saving and environmental protection effect.

[0066] In some embodiments, the rotating mechanism includes an aluminum alloy hinge, and the bottom end of the window sash 200 along a third direction is rotatably connected to the through groove via the aluminum alloy hinge. With this configuration, during the process of switching the window sash 200 from the closed state to the open state, the upper part of the window sash 200 along a third direction tilts towards the interior at a certain angle, forming a small gap for ventilation, thus achieving an inward tilt-and-turn opening method.

[0067] In specific applications, the rotating mechanism may also include a hinge, and the bottom end of the window sash 200 along a third direction is rotatably connected to the through groove via the hinge.

[0068] like Figure 2 , Figure 6 and Figure 7 As shown, specifically, the window frame 100 is provided with a first water-blocking sealing strip 110 on the side wall along the first direction, and the window sash 200 in the closed state abuts against the first water-blocking sealing strip 110; so that a sealing waterproof line is formed between the window sash 200 and the window frame 100 along the first direction, which is beneficial to improving the water-blocking effect of this embodiment.

[0069] like Figure 2 As shown, specifically, a second water-blocking sealing strip 120 is provided on the inner side wall of the window frame 100 along the second direction, and the window sash 200 in the closed state abuts against the second water-blocking sealing strip 120; so that a sealing waterproof line is formed between the window sash 200 and the window frame 100 along the second direction, which is beneficial to improving the water-blocking effect of this embodiment.

[0070] like Figure 6 and Figure 7 As shown, specifically, a third water-blocking sealing strip 130 is provided on the inner end wall of the window frame 100 along the third direction, and the window sash 200 in the closed state abuts against the third water-blocking sealing strip 130; so that a sealing waterproof line is formed between the window sash 200 and the window frame 100 along the third direction, which is beneficial to improving the water-blocking effect of this embodiment.

[0071] In practical applications, the first water-blocking sealing strip 110, the second water-blocking sealing strip 120, and the third water-blocking sealing strip 130 are set with different hardnesses for better water-blocking effect.

[0072] like Figure 8As shown, in some embodiments, a water collection trough 140 is recessed in the bottom wall of the channel along the third direction. When the window sash 200 is in the closed state, the projection of the second metal plate 400 along the third direction falls within the range of the water collection trough 140. The water collection trough 140 is provided with a drainage hole 160 through the wall of the channel facing outward in the first direction. With this arrangement, the water collection trough 140 can collect rainwater that enters the gap between the second metal plate 400 and the window frame 100, and discharge it to the outside through the drainage hole 160, achieving the effect of rapid drainage.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A high-insulation and energy-saving inward-tilting aluminum alloy window system, characterized in that, include: The window frame (100) is made of aluminum alloy profile and has a through groove in the center; The window sash (200) is made of thermally broken aluminum alloy profile, and its bottom is set in the through groove by a rotating mechanism. The window sash (200) has a closed state covering the through groove and an open state that tilts inward to open the through groove. A first metal plate (300) is disposed on the side of the window sash (200) facing inward along a first direction; The second metal plate (400) is disposed on the side of the window sash (200) facing outward in the first direction, and the first metal plate (300), the second metal plate (400) and the window sash (200) form a closed mounting cavity; Thermal insulation rock wool (500) is installed in the mounting cavity.

2. The high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 1, characterized in that, The second metal plate (400) has a first straight portion (410) formed by folding its bottom edge inward along a third direction. The first straight portion (410) abuts against the outer end face of the window sash (200) along a third direction and is connected by fastening screws (420). The second metal plate (400) has a first L-shaped portion (430) formed by folding its sides inward along a second direction. The first segment (431) of the first L-shaped portion (430) is perpendicular to the second metal plate (400) and is connected to the second metal plate (400). The window frame (100) has a first mounting groove (210) on the inner end wall facing the second segment (432) of the first L-shaped portion (430). The first mounting groove (210) is used for the second segment (432) of the first L-shaped portion (430) to be inserted.

3. The high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 2, characterized in that, The first straight portion (410) is provided with a countersunk hole in a third direction. The countersunk hole is used for the screw head of the fastening screw (420) to be inserted. A sealant is provided between the screw head of the fastening screw (420) and the countersunk hole.

4. A high-insulation and energy-saving inward-tilting aluminum alloy window system according to any one of claims 1 to 3, characterized in that, The window sash (200) has a limiting part (220) protruding from its inner sidewalls facing each other in the second direction. An adhesive (310) is filled between the limiting part (220) and the first metal plate (300). The adhesive (310) is used to bond the limiting part (220) and the first metal plate (300).

5. A high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 4, characterized in that, The first metal plate (300) has a second straight portion (320) formed by folding outward on both sides along the second direction. The second straight portion (320) abuts against the outer side wall of the window sash (200) along the second direction.

6. A high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 5, characterized in that, The window sash (200) has a positioning part (230) protruding from its outer side wall along the second direction. The positioning part (230) abuts against the end face of the second straight part (320) away from the first metal plate (300) along the first direction.

7. The high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 1, characterized in that, The window sash (200) includes a first sash portion (240) and a second sash portion (250) that are separately arranged. The second sash portion (250) is located on the side of the first sash portion (240) facing outward in a first direction. The first sash portion (240) and the second sash portion (250) are connected by a heat-insulating material (260).

8. A high-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 1, characterized in that, The rotating mechanism includes an aluminum alloy hinge, and the bottom end of the window sash (200) along a third direction is rotatably connected to the through groove via the aluminum alloy hinge.

9. A high-thermal-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 8, characterized in that, The window frame (100) is provided with a first water-blocking sealing strip (110) on the side wall along the first direction, and the window sash (200) in the closed state abuts against the first water-blocking sealing strip (110); And / or, the window frame (100) is provided with a second water-blocking sealing strip (120) on the inner sidewall along the second direction, and the window sash (200) in the closed state abuts against the second water-blocking sealing strip (120); And / or, the window frame (100) is provided with a third water-blocking sealing strip (130) along the inner end wall in a third direction, and the window sash (200) in the closed state abuts against the third water-blocking sealing strip (130).

10. A high-thermal-insulation and energy-saving inward-tilting aluminum alloy window system according to claim 8, characterized in that, The channel is recessed in the bottom wall along the third direction to form a water collection trough (140). When the window sash (200) is closed, the projection of the second metal plate (400) along the third direction falls within the range of the water collection trough (140). The water collection trough (140) is provided with a drainage hole (160) through the wall facing outward in the first direction.

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