Energy-saving mute door and window frame system with low heat transfer and high sealing performance

Abstract

The invention relates to the technical field of door and window frames, and discloses a low-heat-transfer high-sealing-performance energy-saving mute door and window frame system which comprises a window frame body, a fixed window is fixedly connected to the outer side of the interior of the window frame body, a sliding window is slidably connected to the inner side of the window frame body, and a screen window is arranged on the outer side of the sliding window. The screen window is rotationally connected into the window frame body. The window frame body comprises two sets of sliding frames and two sets of low-heat-transfer window frame guide rail profiles. According to the low-heat-transfer high-sealing-performance energy-saving silent door and window frame system, the window frame body is composed of the two sets of sliding frames and the two sets of low-heat-transfer window frame guide rail profiles, the sliding window is composed of the low-heat-transfer window frame profiles and the double-layer tempered glass, and the fixed window is composed of the double-layer tempered glass and the low-heat-transfer mullion profiles; the low-heat-transfer-conductivity door and window frame has low-heat-transfer-conductivity performance, plays a role in heat insulation and heat preservation on a door and window frame system, saves energy consumption of an indoor air conditioning system and meanwhile has a mute effect.

Description

Technical Field

[0001] The invention relates to the technical field of door and window frames, and in particular to an energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance. Background Art

[0002] Doors and windows are important components in buildings, and their performance is directly related to the comfort and energy consumption of the indoor environment. Traditional door and window frame structures usually have problems such as poor heat transfer performance, poor sealing, and unsatisfactory sound insulation. These problems lead to indoor and outdoor heat exchange, energy loss and noise transmission, reducing the energy-saving performance and comfort of doors and windows.

[0003] In the prior art, although some low heat transfer window frame profiles and low heat transfer center support profiles have appeared, the following technical problems still exist:

[0004] 1. The heat transfer performance needs to be improved, and the heat conduction of doors and windows cannot be effectively reduced;

[0005] 2. The sealing performance is poor and cannot effectively prevent the heat exchange between indoor and outdoor areas;

[0006] 3. The sound insulation effect is not ideal and cannot effectively block external noise.

[0007] In view of the above technical problems, the present invention proposes an energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance. Summary of the invention

[0008] In view of the above technical deficiencies, the purpose of the present invention is to provide an energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance, so as to improve the sealing performance, reduce heat conduction and have good energy-saving and sound-proof effects.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] An energy-saving and silent door and window frame system with low heat transfer and high sealing performance comprises a window frame body, wherein a fixed window is fixedly connected to the outside of the window frame body, a sliding window is slidably connected to the inside of the window frame body, a screen is arranged on the outside of the sliding window, and the screen is rotatably connected to the inside of the window frame body;

[0011] The window frame body includes two sets of sliding frames and two sets of guide rail profiles for low heat transfer window frames. The two sets of sliding frames are respectively arranged on both sides of the sliding frames. The two sets of guide rail profiles for low heat transfer window frames are respectively fixedly connected to the upper and lower ends of the two sets of sliding frames. The guide rail profiles for low heat transfer window frames are installed at the bottom of the window frame body. The sliding window is slidably connected to the upper part of the guide rail profiles for low heat transfer window frames below.

[0012] The sliding window comprises a low heat transfer window frame profile and double-layer tempered glass, wherein the low heat transfer window frame profile forms a rectangular structure, and the double-layer tempered glass is fixedly connected to the inside of the rectangular low heat transfer window frame profile;

[0013] The fixed window includes double-layer tempered glass and a low heat transfer middle brace profile. The low heat transfer middle brace profile is installed in the middle of the window frame body. The upper and lower ends of the low heat transfer middle brace profile are respectively fixed to the middle of two sets of low heat transfer window frame guide rail profiles. The double-layer tempered glass is installed between the window frame body and the low heat transfer middle brace profile. A rectangular groove is provided inside the low heat transfer middle brace profile, and a middle brace steel liner is installed inside the rectangular groove.

[0014] A fixed window is formed by a low heat transfer center brace profile and the middle part of the window frame body, and at the same time, it provides a very stable support for the middle part of the window frame body. A rectangular groove is arranged inside the low heat transfer center brace profile to reduce heat conduction, and the strength of the low heat transfer center brace profile is improved by the center brace steel lining.

[0015] A first sealing gasket is fixedly connected to the inner side of the low heat transfer middle profile, and a second sealing gasket is fixedly connected to the inner side of the screen window;

[0016] A third sealing gasket is arranged inside the profile for the low heat transfer window frame of the sliding window.

[0017] Through the above technical scheme, the window frame body is composed of two sets of sliding frames and two sets of low heat transfer window frame guide profiles, the sliding window is composed of low heat transfer window frame profiles and double-layer tempered glass, and the fixed window is composed of double-layer tempered glass and low heat transfer middle support profiles. The above structure has an internal heat insulation design and has low heat transfer performance, which plays a role in heat insulation and heat preservation for the door and window frame system, saves energy consumption of the indoor air conditioning system, and has a silent effect.

[0018] By sliding the sliding window and the sliding frame on the side of the window frame body, the double-layer tempered glass plays a role of heat insulation and sound insulation. The first sealing gasket on the inner side of the low heat transfer center profile is pressed and fitted with the third sealing gasket on the inner side of the low heat transfer window frame profile of the sliding window, thereby sealing the gap of the window and blocking the air circulation, thereby playing a role of heat preservation and sound insulation. When the sliding window is closed, the third sealing gasket on the inner side of the low heat transfer window frame profile of the sliding window is fixedly connected to the inner side of the screen window and is fitted and sealed with the second sealing gasket, playing a multi-layer sealing role, ensuring low heat transfer, high sealing, energy-saving and quiet effects of doors and windows.

[0019] Preferably, the push-pull frame is L-shaped, and a plurality of partitions are fixedly connected to the interior of the push-pull frame, and the plurality of partitions divide the interior of the push-pull frame into a plurality of buffer bins.

[0020] Through the above technical solution, the interior of the sliding frame is divided into a plurality of buffer chambers by a plurality of partitions, which can reduce the heat conduction of the sliding frame and keep the interior of the sliding frame stable.

[0021] Preferably, a guide rail is provided inside the guide rail profile for the low heat transfer window frame, the sliding window slides inside the guide rail, and a small pressure strip is installed in the middle of the guide rail profile for the low heat transfer window frame.

[0022] Through the above technical solution, the small strip on the inside is compressed and sealed by sliding the sliding window, thereby achieving high sealing, heat insulation and noise reduction.

[0023] Preferably, a frame steel lining is installed at the bottom of the inner guide rail of the guide rail profile for the low heat transfer window frame, and a plurality of partitions are fixedly connected inside the guide rail profile for the low heat transfer window frame, and the plurality of partitions divide the interior of the guide rail profile for the low heat transfer window frame into a plurality of buffer bins of different shapes.

[0024] Through the above technical solution, the inner guide rail of the guide rail profile for the low heat transfer window frame is supported by the frame steel lining, so that the structure is stable, which is conducive to the smooth sliding of the sliding window.

[0025] Preferably, the low heat transfer window frame profile is U-shaped, the interior of the low heat transfer window frame profile is a C-shaped groove, and a sash steel lining is installed inside the C-shaped groove.

[0026] Through the above technical scheme, heat insulation is carried out by using the C-shaped groove inside the low heat transfer window frame profile, and the inside of the low heat transfer window frame profile is stably supported by the fan steel lining.

[0027] Preferably, the low heat transfer center support profile is T-shaped, and a plurality of hollow grooves are provided inside both ends of the low heat transfer center support profile.

[0028] Preferably, a plurality of through grooves are arranged inside the plurality of hollow grooves, and heat insulation strips are arranged inside the through grooves.

[0029] Through the above technical solution, a heat insulation strip is arranged inside the through groove to reduce heat conduction and enhance the heat insulation and noise reduction effect.

[0030] Preferably, a lock handle is installed inside the low heat transfer window frame profile on one side of the sliding window, and a lock rod is installed inside the upper end of the sliding window. The lock handle is pressed downward to clamp the lock rod and the upper low heat transfer window frame guide rail profile, and at the same time, a transverse locking mechanism presses the inner side of the sliding window to ensure sealing.

[0031] Through the above technical solution, the locking handle is used to facilitate the opening and closing of the sliding window. The locking rod at the upper end of the sliding window is clamped and fixed to the upper low heat transfer window frame guide rail profile to fix the position of the sliding window. By pressing the locking handle downward to shrink the locking rod, the sliding window can be slid inside the low heat transfer window frame guide rail profile.

[0032] Preferably, the screen is installed on the outside of the sliding window, and when the sliding window is closed, the second sealing gasket on the inside of the screen is pressed and closed with the third sealing gasket on the inside of the sliding window.

[0033] Through the above technical solution, when the sliding window is closed, the second sealing gasket on the inner side of the screen window and the third sealing gasket on the inner side of the sliding window are pressed and closed, thereby enhancing the sealing effect.

[0034] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0035] First, the present invention adopts the above technical scheme, and uses two groups of sliding frames and two groups of low heat transfer window frame guide rail profiles to form a window frame body, uses low heat transfer window frame profiles and double-layer tempered glass to form a sliding window, and uses double-layer tempered glass and low heat transfer center support profiles to form a fixed window. The above structure has an internal heat insulation design and has low heat transfer performance, which plays a role in heat insulation and heat preservation for the door and window frame system, saves energy consumption of the indoor air-conditioning system, and has a silent effect.

[0036] Second, the present invention divides the interior of the sliding frame into a plurality of buffer bins through a plurality of partitions, which can reduce the heat conduction of the sliding frame and keep the interior of the sliding frame stable. The small pressure strip on the inside is compressed and sealed by sliding the sliding window, which has high sealing performance, heat insulation and noise reduction. The inner guide rail of the guide rail profile for the low heat transfer window frame is supported by the frame steel lining to make its structure stable, which is conducive to the smooth sliding of the sliding window. The low heat transfer window frame profile is insulated and heat-preserved by the C-shaped groove inside the profile, and the low heat transfer window frame profile is stably supported by the fan steel lining. The opening and closing of the sliding window are facilitated by the lock handle. The lock rod at the upper end of the sliding window is clamped and fixed to the upper guide rail profile for the low heat transfer window frame to fix the position of the sliding window. The lock handle is pressed downward to shrink the lock rod, so that the sliding window can slide inside the guide rail profile for the low heat transfer window frame.

[0037] Third, the present invention closes the sliding window and the sliding frame on the side of the window frame body by sliding, and the double-layer tempered glass plays a role of heat insulation and sound insulation. The first sealing gasket on the inner side of the low heat transfer middle profile is pressed and fitted with the third sealing gasket on the inner side of the low heat transfer window frame profile of the sliding window, thereby sealing the gap of the window and blocking the air circulation, thereby playing a role of heat preservation and sound insulation. When the sliding window is closed, the third sealing gasket on the inner side of the low heat transfer window frame profile of the sliding window is fixedly connected to the inner side of the screen window with the second sealing gasket for sealing, playing a multi-layer sealing role, ensuring the low heat transfer, high sealing, energy-saving and quiet effects of the doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of a top view and cross-section structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the side section structure of the present invention;

[0040] Figure 3 It is a schematic diagram of the push-pull frame structure of the present invention;

[0041] Figure 4It is a schematic diagram of the structure of the guide rail profile for the low heat transfer window frame of the present invention;

[0042] Figure 5 It is a schematic diagram of the structure of the low heat transfer center profile of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of the profile for the low heat transfer window frame of the present invention;

[0044] Figure 7 It is a schematic diagram of the front structure of the present invention.

[0045] Among them: 1. Window frame body; 2. Fixed window; 3. Sliding window; 4. Screen window; 5. Sliding frame; 6. Guide rail profile for low heat transfer window frame; 7. Profile for low heat transfer window frame; 8. Double-layer tempered glass; 9. Low heat transfer center support profile; 10. Rectangular groove; 11. Center support steel lining; 12. First sealing gasket; 13. Second sealing gasket; 14. Third sealing gasket; 15. Partition; 16. Buffer bin; 17. Guide rail groove; 18. Small pressure strip; 19. Frame steel lining; 20. Fan steel lining; 21. Hollow groove; 22. Through groove; 23. Insulation strip; 24. Lock handle; 25. Lock rod. DETAILED DESCRIPTION

[0046] The specific implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings. Specific implementation method 1

[0048] The following is a specific implementation of the energy-saving and silent door and window frame system with low heat transfer and high sealing performance.

[0049] See also Figure 1-7 .

[0050] An energy-saving and silent door and window frame system with low heat transfer and high sealing performance comprises a window frame body 1, wherein a fixed window 2 is fixedly connected to the outside of the window frame body 1, a sliding window 3 is slidably connected to the inside of the window frame body 1, a screen 4 is arranged on the outside of the sliding window 3, and the screen 4 is rotatably connected to the inside of the window frame body 1;

[0051] The window frame body 1 includes two sets of sliding frames 5 and two sets of low heat transfer window frame guide rail profiles 6. The two sets of sliding frames 5 are respectively arranged on both sides of the sliding frames 5. The two sets of low heat transfer window frame guide rail profiles 6 are respectively fixedly connected to the upper and lower ends of the two sets of sliding frames 5. The low heat transfer window frame guide rail profiles 6 are installed at the bottom of the window frame body 1. The sliding window 3 is slidably connected to the upper part of the low heat transfer window frame guide rail profile 6 below.

[0052] The sliding window 3 comprises a low heat transfer window frame profile 7 and a double-layer tempered glass 8. The low heat transfer window frame profile 7 forms a rectangular structure, and the double-layer tempered glass 8 is fixedly connected to the inside of the rectangular low heat transfer window frame profile 7.

[0053] The fixed window 2 includes a double-layer tempered glass 8 and a low heat transfer middle brace profile 9. The low heat transfer middle brace profile 9 is installed in the middle of the window frame body 1. The upper and lower ends of the low heat transfer middle brace profile 9 are respectively fixed to the middle of two sets of low heat transfer window frame guide rail profiles 6. The double-layer tempered glass 8 is installed between the window frame body 1 and the low heat transfer middle brace profile 9. A rectangular groove 10 is provided inside the low heat transfer middle brace profile 9. A middle brace steel lining 11 is installed inside the rectangular groove 10.

[0054] The low heat transfer middle brace profile 9 and the middle part of the window frame body 1 form a fixed window 2, and at the same time provide a very stable support for the middle part of the window frame body 1. A rectangular groove 10 is provided inside the low heat transfer middle brace profile 9 to reduce heat conduction, and the strength of the low heat transfer middle brace profile 9 is improved by the middle brace steel lining 11.

[0055] A first sealing gasket 12 is fixedly connected to the inner side of the low heat transfer middle profile 9, and a second sealing gasket 13 is fixedly connected to the inner side of the screen window 4;

[0056] A third sealing gasket 14 is provided inside the low heat transfer window frame profile 7 of the sliding window 3 .

[0057] Through the above technical solution, the window frame body 1 is composed of two sets of sliding frames 5 and two sets of low heat transfer window frame guide rail profiles 6, the sliding window 3 is composed of the low heat transfer window frame profile 7 and the double-layer tempered glass 8, and the fixed window 2 is composed of the double-layer tempered glass 8 and the low heat transfer middle support profile 9. The above structure has an internal heat insulation design and has low heat transfer performance, which plays a role in heat insulation and heat preservation for the door and window frame system, saves energy consumption of the indoor air-conditioning system, and has a silent effect.

[0058] The sliding window 3 is closed with the sliding frame 5 on the side of the window frame body 1, and the double-layer tempered glass 8 plays a role of heat insulation and sound insulation. The first sealing gasket 12 on the inner side of the low heat transfer middle profile 9 is pressed and fitted with the third sealing gasket 14 on the inner side of the low heat transfer window frame profile 7 of the sliding window 3, thereby sealing the gap of the window and blocking the air circulation, thereby playing a role of heat preservation and sound insulation. When the sliding window 3 is closed, the third sealing gasket 14 on the inner side of the low heat transfer window frame profile 7 of the sliding window 3 is fixedly connected with the second sealing gasket 13 on the inner side of the screen window 4 to fit and seal, playing a multi-layer sealing role, ensuring the low heat transfer, high sealing, energy-saving and quiet effects of the doors and windows.

[0059] Specifically, the push-pull frame 5 is L-shaped, and a plurality of partitions 15 are fixedly connected inside the push-pull frame 5 . The plurality of partitions 15 divide the inside of the push-pull frame 5 into a plurality of buffer bins 16 .

[0060] Through the above technical solution, the interior of the push-pull frame 5 is divided into a plurality of buffer chambers 16 by the plurality of partitions 15 , which can reduce the heat conduction of the push-pull frame 5 and keep the interior of the push-pull frame 5 stable.

[0061] Specifically, a guide rail is provided inside the guide rail profile 6 for the low heat transfer window frame, and the sliding window 3 slides inside the guide rail. A small pressure strip 18 is installed in the middle of the guide rail profile 6 for the low heat transfer window frame.

[0062] Through the above technical solution, the small pressure strip 18 on the inner side is compressed and sealed by sliding the sliding window 3, so as to achieve high sealing performance, heat insulation and noise reduction.

[0063] Specifically, a frame steel lining 19 is installed at the bottom of the inner guide rail of the low heat transfer window frame guide rail profile 6, and a plurality of partitions 15 are fixedly connected inside the low heat transfer window frame guide rail profile 6. The plurality of partitions 15 divide the interior of the low heat transfer window frame guide rail profile 6 into a plurality of buffer bins 16 of different shapes.

[0064] Through the above technical solution, the inner guide rail of the guide rail profile 6 for the low heat transfer window frame is supported by the frame steel lining 19, so that the structure is stable, which is conducive to the smooth sliding of the sliding window 3.

[0065] Specifically, the low heat transfer window frame profile 7 is U-shaped, and the interior of the low heat transfer window frame profile 7 is a C-shaped groove, and a sash steel liner 20 is installed inside the C-shaped groove.

[0066] Through the above technical solution, heat insulation is performed by using the C-shaped groove inside the low heat transfer window frame profile 7, and the interior of the low heat transfer window frame profile 7 is stably supported by the fan steel lining 20.

[0067] Specifically, the low heat transfer middle profile 9 is T-shaped, and a plurality of hollow grooves 21 are provided inside both ends of the low heat transfer middle profile 9.

[0068] Specifically, a plurality of through grooves 22 are disposed inside the plurality of hollow grooves 21 , and a heat insulation strip 23 is disposed inside the through grooves 22 .

[0069] Through the above technical solution, the heat insulation strip 23 is arranged inside the through groove 22 to reduce heat conduction and enhance the heat insulation and noise reduction effect.

[0070] Specifically, a lock handle 24 is installed inside the low heat transfer window frame profile 7 on one side of the sliding window 3, and a lock rod 25 is installed inside the upper end of the sliding window 3. The lock rod 25 is clamped with the upper low heat transfer window frame guide rail profile 6. Pressing the lock handle 24 downwards will shrink the lock rod 25.

[0071] Through the above technical solution, the opening and closing of the sliding window 3 is facilitated by the lock handle 24, and the lock rod 25 at the upper end of the sliding window 3 is clamped and fixed to the upper low heat transfer window frame guide rail profile 6 to fix the position of the sliding window 3. By pressing the lock handle 24 downward to shrink the lock rod 25, the sliding window 3 can slide inside the low heat transfer window frame guide rail profile 6.

[0072] Specifically, the screen window 4 is installed on the outside of the sliding window 3. When the sliding window 3 is closed, the second sealing gasket 13 on the inside of the screen window 4 and the third sealing gasket 14 on the inside of the sliding window 3 are pressed and closed.

[0073] By means of the above technical solution, when the sliding window 3 is closed, the second sealing gasket 13 on the inner side of the screen window 4 and the third sealing gasket 14 on the inner side of the sliding window 3 are pressed and closed, thereby enhancing the sealing effect.

[0074] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance, comprising a window frame body (1), characterized in that: The window frame body (1) has a fixed window (2) fixedly connected to the outside of the interior, the window frame body (1) has a sliding window (3) slidably connected to the inside, a screen (4) is arranged on the outside of the sliding window (3), and the screen (4) is rotatably connected to the inside of the window frame body (1); The window frame body (1) comprises two sets of sliding frames (5) and two sets of guide rail profiles (6) for low heat transfer window frames. The two sets of sliding frames (5) are respectively arranged on both sides of the sliding frames (5). The two sets of guide rail profiles (6) for low heat transfer window frames are respectively fixedly connected to the upper and lower ends of the two sets of sliding frames (5). The guide rail profiles (6) for low heat transfer window frames are installed at the bottom of the window frame body (1). The sliding window (3) is slidably connected to the upper part of the guide rail profiles (6) for low heat transfer window frames at the bottom. The sliding window (3) comprises a low heat transfer window frame profile (7) and double-layer tempered glass (8), wherein the low heat transfer window frame profile (7) forms a rectangular structure, and the double-layer tempered glass (8) is fixedly connected to the inside of the rectangular low heat transfer window frame profile (7); The fixed window (2) comprises a double-layer tempered glass (8) and a low heat transfer middle brace profile (9), the low heat transfer middle brace profile (9) being installed in the middle of the window frame body (1), the upper and lower ends of the low heat transfer middle brace profile (9) being respectively fixed to the middle of two groups of low heat transfer window frame guide rail profiles (6), the double-layer tempered glass (8) being installed between the window frame body (1) and the low heat transfer middle brace profile (9), a rectangular groove (10) being arranged inside the low heat transfer middle brace profile (9), and a middle brace steel lining (11) being installed inside the rectangular groove (10); A first sealing gasket (12) is fixedly connected to the inner side of the low heat transfer center profile (9), and a second sealing gasket (13) is fixedly connected to the inner side of the screen window (4); A third sealing gasket (14) is arranged on the inner side of the low heat transfer window frame profile (7) of the sliding window (3).

2. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1 is characterized by: The push-pull frame (5) is L-shaped, and a plurality of partitions (15) are fixedly connected inside the push-pull frame (5), and the plurality of partitions (15) divide the inside of the push-pull frame (5) into a plurality of buffer bins (16).

3. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1 is characterized by: A guide rail groove (17) is arranged in the guide rail profile (6) for the low heat transfer window frame, and the sliding window (3) slides inside the guide rail. A small pressure strip (18) is installed in the middle of the guide rail profile (6) for the low heat transfer window frame.

4. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 3 is characterized by: A frame steel lining (19) is installed at the bottom of the inner guide rail of the guide rail profile (6) for the low heat transfer window frame, and a plurality of partitions (15) are fixedly connected inside the guide rail profile (6) for the low heat transfer window frame, and the plurality of partitions (15) divide the interior of the guide rail profile (6) for the low heat transfer window frame into a plurality of buffer bins (16) of different shapes.

5. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1 is characterized by: The low heat transfer window frame profile (7) is U-shaped, the interior of the low heat transfer window frame profile (7) is a C-shaped groove, and a sash steel liner (20) is installed inside the C-shaped groove.

6. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1 is characterized in that: The low heat transfer center brace profile (9) is T-shaped, and a plurality of hollow grooves (21) are arranged inside both ends of the low heat transfer center brace profile (9).

7. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 6 is characterized by: A plurality of through grooves (22) are arranged inside the plurality of hollow grooves (21), and a heat insulation strip (23) is arranged inside the through grooves (22).

8. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1 is characterized by: A lock handle (24) is installed inside the low heat transfer window frame profile (7) on one side of the sliding window (3), and a lock rod (25) is installed inside the upper end of the sliding window (3). The lock rod (25) is clamped with the upper low heat transfer window frame guide rail profile (6), and the lock handle (24) is pressed downward to retract the lock rod (25).

9. The energy-saving and sound-proof door and window frame system with low heat transfer and high sealing performance according to claim 1, characterized in that: The screen window (4) is installed on the outside of the sliding window (3); when the sliding window (3) is closed, the second sealing gasket (13) on the inside of the screen window (4) and the third sealing gasket (14) on the inside of the sliding window (3) are pressed and closed.

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