Aluminum alloy casement window with good sound insulation performance

Abstract

The utility model discloses an aluminum alloy casement window with good sound insulation performance. The aluminum alloy casement window comprises a window frame, an opening and closing window and a fixed window. The opening and closing window comprises an opening and closing window frame and an opening and closing sash material; the fixed window comprises a first fixed window and a second fixed window which are arranged in the window frame; the first fixed window comprises a first fixed window frame and a first fixed sash material; the second fixed window comprises a second fixed sash material; the window frame is installed on a civil engineering structure, and a horizontal flange is arranged on the inner side of the window frame. The horizontal flange horizontally extends to a position which is flush with the opening and closing window frame and the first fixed window frame or crosses the opening and closing window frame and the first fixed window frame; first sound insulation structures are arranged between the periphery of the opening and closing sash material and the opening and closing window frame, between the periphery of the first fixing sash material and the first fixing window frame and between the second fixing sash material and the window frame correspondingly. The aluminum alloy casement window not only is attractive and delicate, but also has more excellent sound insulation performance.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy window manufacturing technology, specifically to an aluminum alloy casement window with good sound insulation performance. Background Technology

[0002] With the rapid development of the social economy and the continuous improvement of living standards, residential product design is also developing towards high-end and multifunctional directions. In modern cities, due to the significant increase in noise sources such as traffic and construction, noise in some areas has seriously affected the living environment of surrounding residents. To avoid noise interference, many residential products are equipped with sound insulation structures, such as traditional aluminum alloy windows, to reduce or isolate external noise interference. However, the appearance and sound insulation performance of traditional aluminum alloy windows can no longer meet the needs of new residences. Therefore, it is particularly important to develop an aluminum alloy window with a simple and beautiful appearance, better sound insulation performance, and wide applicability. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of the prior art and provide an aluminum alloy casement window with good sound insulation performance. The aluminum alloy casement window is not only beautiful, but also has excellent sound insulation performance.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is:

[0005] An aluminum alloy casement window with good sound insulation performance includes a window frame and an operable window and a fixed window disposed within the window frame, wherein...

[0006] The opening and closing window includes an opening and closing window frame and an opening and closing sash installed in the opening and closing window frame, wherein the opening and closing window frame is hinged to the window frame by a hinge;

[0007] The fixed window includes a first fixed window and a second fixed window disposed within the window frame. The first fixed window includes a first fixed window frame and a first fixed sash disposed within the first fixed window frame. The second fixed window includes a second fixed sash disposed within the window frame.

[0008] The window frame is installed on the civil engineering structure, and a horizontal stop is provided on the inner side of the window frame; the horizontal stop extends horizontally to a position that is flush with or beyond the opening and closing window frame and the first fixed window frame;

[0009] A first sound insulation structure is provided between the four sides of the opening and closing sash and the opening and closing window frame, between the four sides of the first fixed sash and the first fixed window frame, and between the second fixed sash and the window frame.

[0010] In a preferred embodiment of this utility model, a second sound insulation structure is provided between the first fixed window frame and the window frame; both the first sound insulation structure and the second sound insulation structure are sound insulation cotton.

[0011] In a preferred embodiment of this utility model, the inner cavities of the opening and closing window frame, the first fixed window frame, and the window frame are all filled with sound-insulating material.

[0012] In a preferred embodiment of this utility model, the opening and closing fan material, the first fixed fan material, and the second fixed fan material are all made of laminated insulated glass; one or more layers are provided inside the laminated insulated glass, and one or more layers of sound-insulating film are also provided inside the laminated insulated glass.

[0013] In a preferred embodiment of this utility model, the window frame includes an upper frame, a lower frame, a left frame, a right frame, a vertical center mullion, and a horizontal center mullion. The upper frame, left frame, lower frame, and right frame are connected end to end to form a square frame structure. The inner surfaces of the vertical and horizontal center mullions are flush with the inner surfaces of the window frame. The vertical and horizontal center mullions divide the space within the window frame into a first installation area, a second installation area, and a third installation area. The opening and closing window is installed in the first installation area; the first fixed window is installed in the second installation area; and the second fixed window is installed in the third installation area.

[0014] In a preferred embodiment of this utility model, a sealing structure and a pressure-reducing structure are respectively provided between the left side and the left frame, the right side and the vertical mullion, the upper side and the upper frame, and the lower side and the horizontal mullion of the opening and closing window frame.

[0015] The sealing structure includes a first sealing strip installed on the upper frame / vertical center mullion / left frame / horizontal center mullion and a second sealing strip installed on the opening and closing window frame, wherein the extended end of the first sealing strip elastically abuts against the opening and closing window frame; the extended end of the second sealing strip elastically abuts against the upper frame / vertical center mullion / left frame / horizontal center mullion; the gap between the first sealing strip and the second sealing strip in the upper frame / vertical center mullion / left frame / horizontal center mullion and the opening and closing window frame forms a sealing cavity;

[0016] The pressure-reducing structure includes a waterproof rubber strip disposed on the opening and closing window frame. The waterproof rubber strip is installed on the opening and closing window frame, and the extended end of the waterproof rubber strip abuts against the upper frame / vertical mullion / left frame / horizontal mullion. The gap between the upper frame / vertical mullion / left frame / horizontal mullion and the opening and closing window frame located between the second sealing strip and the waterproof rubber strip forms a pressure-reducing cavity.

[0017] In a preferred embodiment of this utility model, the window frame has an installation slot at a position corresponding to the inner side of the sash material, and a first mounting strip is provided on the installation slot; the first mounting strip is installed on the window frame and abuts against the inner side of the sash material; the window frame has a first limiting stop at a position corresponding to the outer side of the sash material, the first limiting stop extends horizontally, and a first sealing connector is provided between the first limiting stop and the outer side of the sash material, the first sealing connector being installed on the first limiting stop.

[0018] In a preferred embodiment of this utility model, the upper side of the first fixed window frame is mounted on the horizontal center mullion, the lower side is mounted on the lower frame, the left side is mounted on the left frame, and the right side is mounted on the vertical center mullion; a second mounting strip is provided between the inner side of the first fixed window frame and the first fixed sash material, the second mounting strip is mounted on the first fixed window frame, and the extended end of the second mounting strip abuts against the inner side of the first fixed sash material; a first fastening box is provided between the outer side of the first fixed window frame and the first fixed sash material, the first fastening box is mounted on the first fixed window frame, and the outer side of the first fastening box is flush with the outer side of the first fixed window frame; a second sealing connector is provided between the outer side of the first fixed sash material and the first fastening box; the second sealing connector is mounted on the first fastening box.

[0019] In a preferred embodiment of this utility model, the second fixed sash is mounted on the window frame around its perimeter via a second snap-fit ​​box; the vertical center mullion, upper frame, lower frame, and right side frame are provided with horizontally extending second limiting edges on the outer side of the second fixed sash; a third sealing connector is provided between the second limiting edge and the outer side of the second fixed sash, and the third sealing connector is mounted on the second limiting edge; the vertical center mullion, upper frame, lower frame, and right side frame are mounted on the inner side of the second fixed sash; the inner side of the second snap-fit ​​box is flush with the inner side of the horizontal edge, and a third mounting strip is provided between the second snap-fit ​​box and the inner side of the second fixed sash, and the third mounting strip is mounted on the second snap-fit ​​box and abuts against the inner side of the second fixed sash.

[0020] In a preferred embodiment of this utility model, the window frame, the opening and closing window frame, and the first fixed window frame are all made of aluminum profile structure; or, the window frame, the opening and closing window frame, and the first fixed window frame are all made of thermally broken aluminum profile structure.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] 1. The aluminum alloy casement window of this utility model with good sound insulation performance is provided with a horizontal baffle. The horizontal baffle extends to a position flush with or beyond the opening and closing window frame and the first fixed window frame, so as to cover the opening and closing window frame and the first fixed window frame, thereby hiding the splicing seam of the opening and closing window and the fixed window. In other words, the entire opening and closing window frame and the first fixed window frame are covered by the horizontal baffle. Thus, when viewing the aluminum alloy casement window of this utility model from the inside, only the entire frame structure of the window frame is visible, while the frame structure of the opening and closing window frame and the first fixed window frame, as well as their splicing seam, are not visible. This makes the visible surface of the aluminum alloy casement window of this utility model flat and hides the splicing seam of the profile, resulting in a more refined appearance.

[0023] 2. The aluminum alloy casement window of this utility model hides the opening and closing window frame and the first fixed window frame on the horizontal edge of the window frame, making the aluminum alloy casement window of this utility model more beautiful, exquisite and high-end.

[0024] 3. The aluminum alloy casement window of this utility model has a first sound insulation structure provided around the opening and closing sash and between the opening and closing window frame, around the first fixed sash and between the first fixed window frame, and between the second fixed sash and the window frame. The first sound insulation structure can isolate noise from outside the window, thereby improving the sound insulation performance of the aluminum alloy casement window of this utility model. Attached Figure Description

[0025] Figure 1 This is an exterior view of the aluminum alloy casement window with good sound insulation performance according to this utility model.

[0026] Figure 2 This is an interior elevation view of the aluminum alloy casement window with good sound insulation performance according to this utility model.

[0027] Figure 3 for Figure 1 A cross-sectional view along the AA direction.

[0028] Figure 4 for Figure 3 A magnified view of a section at point E in the middle.

[0029] Figure 5 for Figure 3 A magnified view of a section at point F.

[0030] Figure 6 for Figure 3 A magnified view of a section at point G.

[0031] Figure 7 for Figure 1 Cross-sectional view along the BB direction.

[0032] Figure 8 for Figure 7 A magnified view of a section at point H.

[0033] Figure 9 for Figure 7 A magnified view of a section at point I.

[0034] Figure 10 for Figure 7 A magnified view of a section at point J.

[0035] Figure 11 for Figure 1 A cross-sectional view along the CC direction.

[0036] Figure 12 for Figure 11 A magnified view of the area at point K.

[0037] Figure 13 for Figure 11 A magnified view of the area at point L.

[0038] Figure 14 for Figure 11 A magnified view of a section at point M.

[0039] Figure 15 for Figure 1 A cross-sectional view along the DD direction.

[0040] Figure 16 for Figure 15 A magnified view of the area at point O in the middle.

[0041] Figure 17 for Figure 15 A magnified view of a portion of point P in the middle.

[0042] Figure 18 This is a schematic diagram showing the horizontal edge flush with the opening and closing window frame (the schematic diagram showing the horizontal edge flush with the first fixed window frame is similar).

[0043] Figure 19 This is a schematic diagram of the structure of laminated insulated glass.

[0044] Figure 20 A schematic diagram of a thermally broken aluminum alloy structure (with...) Figure 3 (For example, a magnified view of a portion at point E in the middle).

[0045] In the diagram: 1-Window frame; 101-Top frame; 102-Right side frame; 103-Bottom frame; 104-Left frame; 105-Vertical mullion; 106-Horizontal mullion; 2-Opening window frame; 3-Fixing anchor bolt; 4-Civil structure; 5-Waterproof mortar; 6-Opening sash material; 7-Sound insulation material; 8-First sealing strip; 9-Sealing cavity; 10-Second sealing strip; 11-Pressure relief cavity; 12-Waterproof strip; 13-First assembly strip ; 14-First sealing connector; 15-Sound insulation cotton; 16-Opening handle; 17-Second wiring box; 18-Third assembly strip; 19-Second fixing sash; 20-Third sealing connector; 21-First fixing window frame; 22-First fixing sash; 23-Second assembly strip; 24-Connecting bolt; 25-Third sealing strip; 26-Sealing component; 27-First wiring box; 28-Second sealing connector; 29-Thermal insulation strip. Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0047] Example 1

[0048] See Figures 1-19 The aluminum alloy casement window of this utility model with good sound insulation performance includes a window frame 1 and an opening and closing window and a fixed window disposed within the window frame 1; the opening and closing window and the fixed window can be a set or multiple sets.

[0049] See Figures 1-19 The opening and closing window includes an opening and closing window frame 2 and an opening and closing sash 6 installed in the opening and closing window frame 2, wherein the opening and closing window frame 2 is hinged to the window frame 1 by a hinge.

[0050] See Figures 1-19 The fixed window includes a first fixed window and a second fixed window disposed within the window frame 1. The first fixed window includes a first fixed window frame 21 and a first fixed sash 22 disposed within the first fixed window frame 21. The second fixed window includes a second fixed sash 19 disposed within the window frame 1.

[0051] See Figures 1-19 The window frame 1 is installed on the civil structure 4 by fixing anchor bolts 3, and the gap between the civil structure 4 and the window frame 1 is sealed with waterproof mortar 5.

[0052] In this embodiment, the window frame 1 includes an upper frame 101, a lower frame 103, a left frame 104, a right frame 102, a vertical center mullion 105, and a horizontal center mullion 106. The upper frame 101, left frame 104, lower frame 103, and right frame 102 are connected end to end to form a square frame structure. The inner surfaces of the vertical center mullion 105 and the horizontal center mullion 106 are flush with the inner surfaces of the window frame 1, which ensures that the inner surfaces of the aluminum alloy casement window of this utility model are parallel, making the structure more aesthetically pleasing. The vertical center mullion 105 and the horizontal center mullion 106 divide the space within the window frame 1 into a first installation area, a second installation area, and a third installation area. The opening and closing window is installed in the first installation area; the first fixed window is installed in the second installation area; and the second fixed window is installed in the third installation area.

[0053] In addition, a reinforcing steel insert is provided inside the vertical mullion 105 to strengthen the structural strength of the vertical mullion 105, thereby enhancing the stability of the aluminum alloy casement window of this utility model during use.

[0054] See Figures 1-19 A horizontal guard is provided on the inner side of the window frame 1. The horizontal guard extends horizontally to a position flush with or beyond the opening and closing window frame 2 and the first fixed window frame 21, so as to cover the opening and closing window frame 2 and the first fixed window frame 21, thereby hiding the splicing seam between the opening and closing window and the fixed window. In other words, the opening and closing window frame 2 and the first fixed window frame 21 are completely covered by the horizontal guard. Thus, when viewing the aluminum alloy casement window of this utility model from the inside, only the entire frame structure of the window frame 1 can be seen. The frame structure of the opening and closing window frame 2 and the first fixed window frame 21, as well as their splicing seam with the window frame 1, are not visible. This makes the visible surface of the aluminum alloy casement window of this utility model flat and hides the splicing seam of the profiles, resulting in a more refined appearance.

[0055] See Figures 1-19 Sealing and pressure-reducing structures are respectively provided between the left side and the left frame 104, the right side and the vertical mullion 105, the upper side and the upper frame 101, and the lower side and the horizontal mullion 106 of the opening and closing window frame 2.

[0056] The sealing structure includes a first sealing strip 8 installed on the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106 and a second sealing strip 10 installed on the opening and closing window frame 2. The extended end of the first sealing strip 8 elastically abuts against the opening and closing window frame 2; the extended end of the second sealing strip 10 elastically abuts against the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106; the gap between the first sealing strip 8 and the second sealing strip 10 in the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106 and the opening and closing window frame 2 forms a sealing cavity 9.

[0057] The pressure-reducing structure includes a waterproof rubber strip 12 disposed on the opening and closing window frame 2. The waterproof rubber strip 12 is installed on the opening and closing window frame 2, and the extended end of the waterproof rubber strip 12 abuts against the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106. The gap between the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106 and the opening and closing window frame 2 located between the second sealing rubber strip 10 and the waterproof rubber strip 12 forms a pressure-reducing cavity 11 (or a waterproof cavity).

[0058] By setting the first sealing strip 8, the second sealing strip 10, and the waterproof strip 12, the gap between the upper frame 101 / vertical center mullion 105 / left frame 104 / horizontal center mullion 106 and the opening and closing window frame 2 forms a sealing cavity 9 and a pressure-reducing cavity 11. The pressure-reducing cavity 11 can reduce the amount of rainwater and external wind pressure, while the sealing cavity 9 can be waterproof. In addition, since the first sealing strip 8 and the second sealing strip 10 are concealed, they are protected from aging due to wind and sun exposure, and their durability is reliable.

[0059] See Figures 1-19 The window frame 2 has a mounting slot at a position corresponding to the inner side of the sash 6, and a first mounting strip 14 is provided on the mounting slot. The first mounting strip 14 is installed on the window frame 2 and abuts against the inner side of the sash 6. The window frame 2 has a first limiting edge at a position corresponding to the outer side of the sash 6. The first limiting edge extends horizontally, and a first sealing connector 13 is provided between the first limiting edge and the outer side of the sash 6. The first sealing connector 13 is installed on the first limiting edge. Through the above arrangement, the window frame 2 is sealed, thereby improving the sound insulation, heat insulation, and waterproof performance of the window frame 2.

[0060] See Figures 1-19 The window frame 2 is provided with an opening handle 16 for opening or closing the window near the vertical mullion 105;

[0061] In this embodiment, the opening handle 16 can be implemented with reference to the existing aluminum alloy window opening handle, and the locking point and transmission rod of the opening handle 16 are installed in the sealing cavity 9.

[0062] See Figures 1-19 The upper side of the first fixed window frame 21 is mounted on the horizontal center mullion 106, the lower side is mounted on the lower frame 103, the left side is mounted on the left frame 104, and the right side is mounted on the vertical center mullion 105. A second mounting strip 23 is provided between the inner sides of the first fixed window frame 21 and the first fixed sash 22. The second mounting strip 23 is mounted on the first fixed window frame 21, and its extended end abuts against the inner side of the first fixed sash 22. A first fastening box 27 is provided between the outer sides of the first fixed window frame 21 and the first fixed sash 22. The first fastening box 27 is mounted on the first fixed window frame 21, and its outer side is flush with the outer side of the first fixed window frame 21. A second sealing connector 28 is provided between the first fixed sash 22 and the first fastening box 27. The third sealing connector 28 is mounted on the first fastening box 27. Through the above structure, the first fixed sash 22 is mounted on the first fixed window frame 21.

[0063] See Figures 1-19 The upper frame 101, vertical center mullion 105, lower frame 103, and right side frame 102 are provided with horizontally extending second limiting baffles on the outer side of the second fixed sash 19. A third sealing connector 20 is provided between the second limiting baffle and the second fixed sash 19, and the third sealing connector 20 is installed on the second limiting baffle. A second fastening box 17 is installed on the inner side of the second fixed sash 19, and the inner side of the second fastening box 17 is flush with the inner side of the horizontal baffle. A third mounting strip 18 is provided between the second fastening box 17 and the inner side of the second fixed sash 19, and the third mounting strip 18 is installed on the second fastening box 17 and abuts against the inner side of the second fixed sash 19. With the above structure, the second fixed sash 19 can be installed in the window frame 1.

[0064] See Figures 1-19A first sound insulation structure is provided between the four sides of the opening and closing sash 6 and the opening and closing window frame 2, between the four sides of the first fixed sash 22 and the first fixed window frame 21, and between the second fixed sash 19 and the window frame 1; a second sound insulation structure is provided between the first fixed window frame 21 and the window frame 1; both the first and second sound insulation structures are sound insulation cotton 15; the sound insulation effect is achieved by filling with sound insulation cotton 15.

[0065] See Figures 1-19 The inner cavities of the opening and closing window frame 2, the first fixed window frame 21, and the window frame 1 are all filled with sound insulation material; the sound insulation material is foam material 7; by filling the inner cavities of the opening and closing window frame 2, the first fixed window frame 21, and the window frame 1 with foam material 7, a good sound insulation function can be achieved.

[0066] See Figures 1-19 The window frame 1, the opening and closing window frame 2, and the first fixed window frame 21 all adopt ordinary aluminum profile structures. Each aluminum profile structure has multiple internal cavities, and one or more cavities can be filled with foam material according to actual needs (e.g., sound insulation requirements). For example, in this embodiment, each of the window frame 1, the opening and closing window frame 2, and the first fixed window frame 21 has two internal cavities. One cavity can be filled with foam material 7, or both cavities can be filled with foam material 7, depending on actual needs.

[0067] In addition, the opening and closing sash 6, the first fixed sash 22, and the second fixed sash 19 are all made of laminated insulated glass, which can further improve the sound insulation and heat insulation performance of the aluminum alloy casement window of this utility model; wherein, the number of laminated insulated glass can be flexibly selected according to actual needs, for example, insulated glass with one laminate 31 can be used, or insulated glass with two or more laminates 31 can be used, and the size of each laminate 31 can also be flexibly adjusted according to actual needs;

[0068] In addition, one or more layers of sound-insulating film 30 are provided in the laminated insulating glass. The sound-insulating film can be placed in the laminated insulating glass near the interior, or in the laminated insulating glass near the exterior, or on both the inner and outer sides of the laminated insulating glass. The specific quantity and placement can be flexibly selected according to the required sound insulation requirements.

[0069] In summary, by selecting the aluminum profile structure (the number of cavities filled with foam material 7) and the laminated insulating glass (the number of interlayers 31, the number and placement of sound insulation film 30), aluminum alloy casement windows that meet different sound insulation requirements can be manufactured.

[0070] See Figures 1-19 The bottom of the opening and closing sash 6, the first fixed sash 22, and the second fixed sash 19 are all provided with load-bearing pads, which are respectively installed on the opening and closing window frame 2 and the lower frame 103.

[0071] See Figures 1-19 The first fixed window frame 21 is connected to the window frame 1 by connecting bolts 24; and a third sealing strip 25 and a sealing element 26 are provided in the gap between the first fixed window frame 21 and the window frame 1, and the third sealing strip 25 and the sealing element 26 are respectively located on both sides of the second sound insulation structure (i.e., sound insulation cotton 15).

[0072] In this embodiment, the first sealing connector 14, the second sealing connector 28, and the third sealing connector 20 all include an assembly strip and a corresponding sealing structure, which are used to achieve the installation and sealing between the fan material and the frame.

[0073] The aluminum alloy casement window of this invention, which has good sound insulation performance, has the following advantages:

[0074] 1. Excellent sound insulation performance; the airborne sound insulation performance rating index of the entire window can reach level 5.

[0075] 2. Simple and exquisite appearance: The frame is 62mm wide and the middle frame is 88mm wide, with the same width for indoor and outdoor use. The visible surface of the profile is flat and of equal width. The indoor buckle is concealed by a special structure, resulting in an exquisite appearance in the details.

[0076] 3. The profile has a depth and width of 100mm, good load-bearing performance, and can be used for large-size windows in high-rise residential buildings;

[0077] 4. The opening window is equipped with three rubber strips, realizing a three-layer waterproof structure with two cavities, resulting in better waterproof performance;

[0078] 5. Wide range of applications: It can use ordinary aluminum profiles or thermally broken aluminum profiles, and is matched with various types of glass to meet the needs of different sound insulation and thermal performance requirements for exterior windows, while maintaining a consistent appearance.

[0079] 6. Using the structure of ordinary aluminum windows, it achieves an appearance similar to a visible frame curtain wall, while possessing excellent sound insulation performance. This meets the sound insulation requirements of residential exterior windows in noisy environments, enhances the facade effect and grade of ordinary residences, and improves indoor comfort.

[0080] Example 2

[0081] See Figure 20 The difference between this embodiment and Embodiment 1 is that:

[0082] In this embodiment, the window frame 1, the opening and closing window frame 2, and the first fixed window frame 21 all adopt a thermally broken aluminum profile structure, that is, a thermal break strip 29 is set in the aluminum alloy frame to prevent heat from being transferred through the aluminum alloy profile structure of the window frame 1, the opening and closing window frame 2, and the first fixed window frame 21. In other words, the heat transmission path is cut off by setting the thermal break strip 29.

[0083] Apart from the differences mentioned above, all other structures of the aluminum alloy casement window in this embodiment are implemented in accordance with Embodiment 1.

[0084] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An aluminum alloy casement window with good sound insulation performance, characterized in that, Includes a window frame and operable and fixed windows disposed within the window frame, wherein, The opening and closing window includes an opening and closing window frame and an opening and closing sash installed in the opening and closing window frame, wherein the opening and closing window frame is hinged to the window frame by a hinge; The fixed window includes a first fixed window and a second fixed window disposed within the window frame. The first fixed window includes a first fixed window frame and a first fixed sash disposed within the first fixed window frame. The second fixed window includes a second fixed sash disposed within the window frame. The window frame is installed on the civil engineering structure, and a horizontal stop is provided on the inner side of the window frame; the horizontal stop extends horizontally to a position that is flush with or beyond the opening and closing window frame and the first fixed window frame; A first sound insulation structure is provided between the four sides of the opening and closing sash and the opening and closing window frame, between the four sides of the first fixed sash and the first fixed window frame, and between the second fixed sash and the window frame.

2. The aluminum alloy casement window with good sound insulation performance according to claim 1, characterized in that, A second sound insulation structure is provided between the first fixed window frame and the window frame; both the first sound insulation structure and the second sound insulation structure are sound insulation cotton.

3. The aluminum alloy casement window with good sound insulation performance according to claim 1, characterized in that, The inner cavities of the opening and closing window frame, the first fixed window frame, and the window frame are all filled with sound-insulating material.

4. The aluminum alloy casement window with good sound insulation performance according to claim 1, characterized in that, The opening and closing fan, the first fixed fan, and the second fixed fan are all made of laminated insulated glass; the laminated insulated glass has one or more layers inside, and one or more layers of sound-insulating film are also provided inside the laminated insulated glass.

5. The aluminum alloy casement window with good sound insulation performance according to claim 1, characterized in that, The window frame includes a top frame, a bottom frame, a left frame, a right frame, a vertical center mullion, and a horizontal center mullion. The top frame, left frame, bottom frame, and right frame are connected end to end to form a square frame structure. The inner sides of the vertical and horizontal center mullions are flush with the inner sides of the window frame. The vertical and horizontal center mullions divide the space within the window frame into a first installation area, a second installation area, and a third installation area. The operable window is installed in the first installation area; the first fixed window is installed in the second installation area; and the second fixed window is installed in the third installation area.

6. The aluminum alloy casement window with good sound insulation performance according to claim 5, characterized in that, Sealing and pressure-reducing structures are respectively provided between the left side and the left frame, between the right side and the vertical mullion, between the top side and the top frame, and between the bottom side and the horizontal mullion of the opening and closing window frame. The sealing structure includes a first sealing strip installed on the upper frame / vertical center mullion / left frame / horizontal center mullion and a second sealing strip installed on the opening and closing window frame, wherein the extended end of the first sealing strip elastically abuts against the opening and closing window frame; the extended end of the second sealing strip elastically abuts against the upper frame / vertical center mullion / left frame / horizontal center mullion; the gap between the first sealing strip and the second sealing strip in the upper frame / vertical center mullion / left frame / horizontal center mullion and the opening and closing window frame forms a sealing cavity; The pressure-reducing structure includes a waterproof rubber strip disposed on the opening and closing window frame. The waterproof rubber strip is installed on the opening and closing window frame, and the extended end of the waterproof rubber strip abuts against the upper frame / vertical mullion / left frame / horizontal mullion. The gap between the upper frame / vertical mullion / left frame / horizontal mullion and the opening and closing window frame located between the second sealing strip and the waterproof rubber strip forms a pressure-reducing cavity.

7. The aluminum alloy casement window with good sound insulation performance according to claim 6, characterized in that, The window frame has a mounting slot at a position corresponding to the inner side of the sash material, and a first mounting strip is provided on the mounting slot. The first mounting strip is installed on the window frame and abuts against the inner side of the sash material. The window frame has a first limiting stop at a position corresponding to the outer side of the sash material. The first limiting stop extends horizontally, and a first sealing connector is provided between the first limiting stop and the outer side of the sash material. The first sealing connector is installed on the first limiting stop.

8. The aluminum alloy casement window with good sound insulation performance according to claim 7, characterized in that, The upper side of the first fixed window frame is mounted on the horizontal center mullion, the lower side is mounted on the lower frame, the left side is mounted on the left frame, and the right side is mounted on the vertical center mullion. A second mounting strip is provided between the inner side of the first fixed window frame and the first fixed sash material. The second mounting strip is mounted on the first fixed window frame, and its extended end abuts against the inner side of the first fixed sash material. A first fastening box is provided between the outer side of the first fixed window frame and the first fixed sash material. The first fastening box is mounted on the first fixed window frame, and its outer side is flush with the outer side of the first fixed window frame. A second sealing connector is provided between the outer side of the first fixed sash material and the first fastening box. The second sealing connector is mounted on the first fastening box.

9. The aluminum alloy casement window with good sound insulation performance according to claim 8, characterized in that, The second fixed sash is mounted on the window frame around its perimeter via a second snap-fit ​​box; the vertical center mullion, upper frame, lower frame, and right side frame are provided with horizontally extending second limiting edges on the outer side of the second fixed sash; a third sealing connector is provided between the second limiting edge and the outer side of the second fixed sash, and the third sealing connector is mounted on the second limiting edge; the vertical center mullion, upper frame, lower frame, and right side frame are mounted on the inner side of the second fixed sash; the inner side of the second snap-fit ​​box is flush with the inner side of the horizontal edge, and a third mounting strip is provided between the second snap-fit ​​box and the inner side of the second fixed sash, and the third mounting strip is mounted on the second snap-fit ​​box and abuts against the inner side of the second fixed sash.

10. The aluminum alloy casement window with good sound insulation performance according to claim 9, characterized in that, The window frame, the opening and closing window frame, and the first fixed window frame are all made of aluminum profile structure; or, the window frame, the opening and closing window frame, and the first fixed window frame are all made of thermally broken aluminum profile structure.

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