A safe and easy-to-assemble sliding door and window structure

Abstract

The utility model relates to a safe and easy to assemble and disassemble sliding door and window structure, including upper window frame, lower window frame, the outer window sash and inner window sash of horizontal sliding setting between upper window frame and lower window frame, the upper window frame is equipped with outdoor upper baffle edge, the upper window frame is equipped with detachable and with outdoor upper baffle edge parallel interval arrangement's first movable baffle edge spare, the upper window frame still is equipped with detachable and with first movable baffle edge spare parallel interval arrangement's second movable baffle edge spare. The utility model discloses detachable first movable baffle edge spare and second movable baffle edge spare, make the outer window sash and inner window sash can be installed between upper window frame and lower window frame with the state of lying flat, changed the traditional oblique installation mode, make installation more convenient, and installation is not easy to bend upper window frame and lower window frame, guarantee the stability and fluency of the outer window sash and inner window sash sliding, to ensure the reliability of the window sash use.

Description

Technical Field

[0001] This utility model relates to the field of doors and windows, and in particular to a sliding door and window structure. Background Technology

[0002] Currently, sliding doors and windows are widely popular due to their simple structure and lack of extra space occupation when open or closed. Among existing sliding doors and windows, a patent application published in Chinese patent literature, number 201720105194.0, entitled "An Anti-theft Airtight Sliding Window," mainly includes an upper window frame with multiple J-shaped tracks, a lower window frame with multiple T-shaped tracks, multiple window sashes slidably mounted on the corresponding J-shaped and T-shaped tracks, and a windproof and anti-theft plate horizontally inserted into the upper window frame. The upper and lower window frames also have exterior baffles. This solution slides the window sashes onto the J-shaped and T-shaped tracks, and the windproof and anti-theft plate shortens the vertical movement distance of the window sashes between the upper and lower window frames, greatly reducing the liftable distance of the window sashes. Combined with the two exterior baffles restricting the movement of the window sashes, it achieves an anti-theft function. However, this solution still has some shortcomings in practical applications: Firstly, when installing the window sash, the upper part of the sash needs to be diagonally fitted onto the J-shaped track, and then the lower part of the sash needs to be swung over the T-shaped track before being fitted onto it. During this swivel, the upper window frame needs to provide a considerable vertical movement distance for the lower part of the sash to swing over the T-shaped track. However, the presence of the windproof and anti-theft plate reduces this vertical movement distance, significantly increasing the difficulty of installation and removal. This makes the installation and removal of the sash very inconvenient, and also makes it very easy for the lower part of the sash to bump against the T-shaped track during the swivel, causing deformation and resulting in uneven sliding of the sash.

[0003] Secondly, when the window sash is swung using the J-shaped track as a fulcrum, the J-shaped track is also prone to bending, causing the gap between two adjacent J-shaped tracks to narrow or widen. This affects the smoothness and stability of the window sash sliding. Alternatively, when strong winds blow towards the window sash, the window sash is prone to shaking and colliding with the J-shaped track, producing a knocking sound. Over time, the window glass is also prone to shattering due to the impact, which reduces the lifespan of the window sash and poses a significant safety risk.

[0004] Therefore, based on the above-mentioned shortcomings, the applicant believes that it is necessary to redesign a safe and easy-to-install sliding door and window structure in order to better meet people's usage needs. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a safe and easy-to-install sliding door and window structure. This sliding door and window structure, by setting a detachable first movable edge piece and a second movable edge piece, allows both the outer window sash and the inner window sash to be installed in a flat state between the upper window frame and the lower window frame. This changes the traditional oblique installation method, making installation more convenient and less likely to bend the upper window frame and the lower window frame. It ensures the smoothness and stability of the sliding of the outer window sash and the inner window sash, thereby ensuring the reliability and safety of the window sash.

[0006] The technical solution of this utility model is implemented as follows: a safe and easy-to-install sliding door and window structure includes an upper window frame, a lower window frame, and an outer window sash and an inner window sash that are horizontally slidably disposed between the upper and lower window frames. The upper window frame is provided with an outdoor upper baffle. The upper window frame is characterized in that: the upper window frame is provided with a detachable first movable baffle piece that is parallel and spaced apart from the outdoor upper baffle piece. A first limiting guide groove is formed between the first movable baffle piece and the outdoor upper baffle piece to prevent the outer window sash from detaching and to allow the outer window sash to slide horizontally; the upper window frame is also provided with a detachable second movable baffle piece that is parallel and spaced apart from the first movable baffle piece. A second limiting guide groove is formed between the second movable baffle piece and the first movable baffle piece to prevent the inner window sash from detaching and to allow the inner window sash to slide horizontally; the outdoor upper baffle piece, the first movable baffle piece, and the second movable baffle piece are arranged sequentially from the outside to the inside.

[0007] Preferably, a first positioning protrusion and a first positioning groove are provided between the first movable edge member and the upper window frame, and between the second movable edge member and the upper window frame, respectively; the first movable edge member and the second movable edge member are respectively composed of a first horizontal mounting part and a first vertical edge part connected together.

[0008] Preferably, the present invention further includes a plurality of locking screws, wherein the first lateral mounting portion of the first movable edge member and the first lateral mounting portion of the second movable edge member are both fixed to the upper window frame by locking screws.

[0009] Preferably, the lower window frame is further provided with an outdoor lower stop, and the vertical movement distance of the outer window sash between the upper window frame and the lower window frame is less than the height distance from the bottom edge of the outer window sash to the top edge of the outdoor lower stop.

[0010] Preferably, the lower window frame is further provided with a second step and a first step arranged sequentially from top to bottom. The second step is closer to the interior and the first step is closer to the exterior. The lower window frame is also provided with a drainage cavity located below the first step and with its opening facing outward. The first step is also provided with a drainage hole penetrating into the drainage cavity. The lower end of the outer window sash is slidably disposed on the first step, and the lower end of the inner window sash is slidably disposed on the second step.

[0011] Preferably, the first step and the second step are respectively composed of a third step, a second step, and a first step arranged sequentially from top to bottom. The lower end of the outer window sash is slidably disposed on the second step of the first step, and the lower end of the inner window sash is slidably disposed on the second step of the second step. The drainage hole is opened on the first step of the first step. A sealing strip or weatherstripping is also provided between the two third step sections and the corresponding outer window sash and inner window sash, and a sealing strip or weatherstripping is also provided between the two second step sections or the two first step sections and the corresponding outer window sash and inner window sash.

[0012] Preferably, the present invention further includes a screen sash that can be slidably disposed between the upper window frame and the lower window frame. The upper window frame is also provided with a detachable third movable side guard that is parallel to and spaced apart from the second movable side guard. A third limiting guide groove is formed between the third movable side guard and the second movable side guard to prevent the screen sash from detaching and to allow the screen sash to slide laterally. The first limiting guide groove, the second limiting guide groove, and the third limiting guide groove are arranged sequentially from the outside to the inside. A second positioning protrusion and a second positioning groove are also provided between the third movable side guard and the upper window frame for nested cooperation. The third movable side guard is composed of a second horizontal mounting part and a second vertical side guard part.

[0013] Preferably, the lower window frame is provided with sliding rails and pulleys that are slidably engaged between the lower window frame and the outer window sash, between the lower window frame and the inner window sash, and between the lower window frame and the screen window sash.

[0014] Preferably, the present invention further includes a bottom window frame and a fixed window sash. The bottom window frame is disposed below the lower window frame, and the fixed window sash is disposed between the lower window frame and the bottom window frame. The bottom window frame has a lower fixed baffle and a detachable lower clamping member. The lower end of the fixed window sash is clamped between the lower clamping member and the lower fixed baffle. The lower window frame has an upper fixed baffle and a detachable upper clamping member. The upper end of the fixed window sash is clamped between the upper clamping member and the upper fixed baffle. The upper clamping member and the lower window frame, and the lower clamping member and the bottom window frame, are respectively provided with a clamping protrusion and a clamping groove that are engaged together.

[0015] Preferably, the lower window frame is also provided with a window sill handrail.

[0016] The beneficial effects of this utility model are as follows: Since the first and second movable edge blocks are detachable components, the installation of the outer or inner window sash is not restricted by the first and second movable edge blocks. This allows both the outer and inner window sashes to be installed flat between the upper and lower window frames. Then, the first and second movable edge blocks are respectively installed on the upper window frame to restrict the movement of the upper ends of the outer and inner window sashes. This not only ensures that the outer and inner window sashes can slide laterally but also prevents them from becoming loose and falling off, resulting in a very high level of safety. This structural design changes the traditional oblique installation method, making installation more convenient and less likely to bend the upper and lower window frames, ensuring the smooth and stable sliding of the outer and inner window sashes, thereby ensuring the reliability of the window sash. Meanwhile, by arranging the outdoor upper edge, the first movable edge piece, and the second movable edge piece sequentially from the outside to the inside, a first limiting guide groove and a second limiting guide groove can be formed that are independent of each other and do not obstruct the sliding of the outer window sash and the inner window sash. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model with cross-section.

[0018] Figure 2 This is a cross-sectional structural diagram of the first movable side guard and the second movable side guard of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the third movable side guard of this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of the upper window frame of this utility model.

[0021] Figure 5 This is a cross-sectional structural diagram of the lower window frame of this utility model.

[0022] Figure 6 This is a schematic diagram of the usage state of this utility model.

[0023] Figure 7 This is a structural schematic diagram of an extended solution of this utility model. Detailed Implementation

[0024] like Figure 1As shown, the present invention discloses a safe and easy-to-install sliding door and window structure, including an upper window frame 1, a lower window frame 2, an outer window sash 3 and an inner window sash 4 that are horizontally slidably disposed between the upper window frame 1 and the lower window frame 2. The upper window frame 1 is provided with an outdoor upper baffle 11. To achieve the purpose proposed by the present invention, the upper window frame 1 is provided with a detachable first movable baffle 6 that is parallel and spaced apart from the outdoor upper baffle 11. A first limiting guide groove 12 is formed between the first movable baffle 6 and the outdoor upper baffle 11 to prevent the outer window sash 3 from detaching and to allow the outer window sash 3 to slide horizontally. The upper window frame 1 is also provided with a detachable second movable baffle 7 that is parallel and spaced apart from the first movable baffle 6. A second limiting guide groove 13 is formed between the second movable baffle 7 and the first movable baffle 6 to prevent the inner window sash 4 from detaching and to allow the inner window sash 4 to slide horizontally. The outdoor upper baffle 11, the first movable baffle 6, and the second movable baffle 7 are arranged sequentially from the outside to the inside.

[0025] To better position the first movable edge stop 6 and the second movable edge stop 7 on the upper window frame 1, thus making installation more convenient, such as... Figure 1 , Figure 2 and Figure 4 As shown, nested positioning protrusions 63 and first positioning grooves 14 are provided between the first movable edge member 6 and the upper window frame 1, and between the second movable edge member 7 and the upper window frame 1. Specifically, the two first positioning protrusions 63 are respectively provided on the corresponding first movable edge member 6 and second movable edge member 7, and the two first positioning grooves 14 are respectively provided on the upper window frame 1. Of course, the positions of the first positioning protrusions 63 and the first positioning grooves 14 can also be interchanged, which can still serve the purpose of installation positioning.

[0026] To further improve the structure of the first movable sidewall 6 and the second movable sidewall 7, making their structure simpler and easier to manufacture, such as... Figure 2 As shown, the first movable side guard 6 and the second movable side guard 7 are respectively composed of a first horizontal mounting portion 61 and a first vertical side guard portion 62 connected together. In practical applications, the first horizontal mounting portion 61 and the first vertical side guard portion 62 can be connected by separate assembly. Preferably, the first horizontal mounting portion 61 and the first vertical side guard portion 62 are integrally formed structures, which results in higher connection strength. Specifically, the first positioning protrusion 63 is provided on the first horizontal mounting portion 61.

[0027] To ensure that the first movable side guard 6 and the second movable side guard 7 are easy to install and remove, and that the installation is also very secure, such as Figure 1 and Figure 2As shown, the present invention also includes a plurality of locking screws 100, and the first transverse mounting portion 61 of the first movable edge member 6 and the first transverse mounting portion 61 of the second movable edge member 7 are both fixed to the upper window frame 1 by locking screws 100.

[0028] To prevent the outer window sash 3 from being lifted and removed from the outside, thus serving as a security feature, such as... Figure 1 As shown, the lower window frame 2 is also provided with an outdoor lower edge 21. The vertical movement distance of the outer window sash 3 between the upper window frame 1 and the lower window frame 2 is less than the height distance from the bottom edge of the outer window sash 3 to the top edge of the outdoor lower edge 21. In practical applications, the vertical movement distance of the outer window sash 3 between the upper window frame 1 and the lower window frame 2 can be achieved by shortening the distance between the top surface of the outer window sash 3 and the bottom of the first limiting guide groove 12. When the distance between the top surface of the outer window sash 3 and the bottom of the first limiting guide groove 12 is wide, such as... Figure 6 As shown, a pulley component 31 can also be installed at the top of the outer window sash 3, which can also shorten the vertical movement distance of the outer window sash 3 between the upper window frame 1 and the lower window frame 2. The inner window sash 4 is restricted by the upper window frame 1, the lower window frame 2, and the outer window sash 3. If the outer window sash 3 is not removed from the outside, the inner window sash 4 will not be removed either, thus providing excellent anti-theft protection. In practical applications, pulley components 31 can also be installed at the top of the inner window sash 4 and the screen window sash 5. By separately installing pulley components 31, the smoothness and stability of the sliding of the outer window sash 3, the inner window sash 4, and the screen window sash 5 can be enhanced respectively. In practical applications, the pulley component 31 adopts existing common pulley components used in sliding doors and windows; its specific structure and operating principle will not be elaborated further here.

[0029] In rainy weather, in order to drain rainwater from the lower window frame 2, such as Figure 1 and Figure 5 As shown, the lower window frame 2 is further provided with a second step 22 and a first step 23 arranged sequentially from top to bottom. The second step 22 is closer to the interior, and the first step 23 is closer to the exterior. The lower window frame 2 is also provided with a drainage cavity 24 located below the first step 23 and opening outwards. The first step 23 is also provided with a drainage hole 25 penetrating into the drainage cavity 24. The lower end of the outer window sash 3 is slidably mounted on the first step 23, and the lower end of the inner window sash 4 is slidably mounted on the second step 22. This forms a stepped water guiding structure, and the drainage hole 25 and drainage cavity 24 are used to quickly drain rainwater from the lower window frame 2, preventing rainwater from accumulating in the lower window frame 2.

[0030] To further improve the reliability of drainage in the lower window frame 2, such as Figure 1 and Figure 5As shown, the first step 23 and the second step 22 are respectively composed of a third step portion 223, a second step portion 222, and a first step portion 221 arranged sequentially from top to bottom. The lower end of the outer window sash 3 is slidably mounted on the second step portion 222 of the first step 23, and the lower end of the inner window sash 4 is slidably mounted on the second step portion 222 of the second step 22. The drainage hole 25 is opened on the first step portion 221 of the first step 23. This increases the number of steps, making the stepped water guiding structure more reliable. In practical applications, to make the overall structure of the lower window frame 2 more compact, such as... Figure 5 As shown, the first step portion 221 of the second step 22 and the third step portion 223 of the first step 23 are the same step portion structure. Note: Figure 5 The two dashed rectangles in the image are used to indicate the positions of the first step 23 and the second step 22, respectively.

[0031] To further improve the waterproof, soundproof, and heat-insulating sealing performance of sliding door and window structures, such as... Figure 1 and Figure 5 As shown, sealing strips or weatherstripping 224 are also provided between the two third-level step portions 223 and the corresponding outer window sash 3 and inner window sash 4; specifically, the sealing strips or weatherstripping 224 are provided on the third-level step portions 223. Sealing strips or weatherstripping 224 are also provided between the two second-level step portions 222 or the two first-level step portions 221 and the corresponding outer window sash 3 and inner window sash 4. Specifically, the sealing strips or weatherstripping 224 are provided on the outer window sash 3 and inner window sash 4 located at the two first-level step portions 221. This provides a double seal for the outer window sash 3 and inner window sash 4, improving waterproofing, sound insulation, and heat insulation performance.

[0032] To prevent mosquitoes from flying into the room and to enhance the functionality of sliding door and window structures, such as... Figure 1 As shown, this utility model also includes a screen sash 5 that can be slidably disposed between the upper window frame 1 and the lower window frame 2. The upper window frame 1 is also provided with a detachable third movable side guard 8 that is parallel to and spaced apart from the second movable side guard 7. A third limiting guide groove 15 is formed between the third movable side guard 8 and the second movable side guard 7 to prevent the screen sash 5 from detaching and to allow the screen sash 5 to slide laterally. The first limiting guide groove 12, the second limiting guide groove 13, and the third limiting guide groove 15 are arranged sequentially from the outside to the inside. This allows the screen sash 5 to be installed between the upper window frame 1 and the lower window frame 2 in the same way as the outer window sash 3 and the inner window sash 4, making the installation of the screen sash 5 more convenient and preventing the upper window frame 1 and the lower window frame 2 from being bent during the installation of the screen sash 5.

[0033] To better position the third movable edge bracket 8 on the upper window frame 1, thus making installation more convenient, such as... Figure 1 , Figure 3 and Figure 4 As shown, a second positioning protrusion 83 and a second positioning groove 16 are nested and fitted between the third movable edge member 8 and the upper window frame 1. Specifically, the second positioning protrusion 83 is provided on the third movable edge member 8, and the second positioning groove 16 is provided on the upper window frame 1. Of course, the positions of the second positioning protrusion 83 and the second positioning groove 16 can also be interchanged, and they can still serve the purpose of installation and positioning.

[0034] To further improve the structure of the third movable retaining member 8, making its structure simpler and easier to manufacture, such as... Figure 3 As shown, the third movable flange 8 is composed of a second horizontal mounting portion 81 and a second vertical flange portion 82. In practical applications, the second horizontal mounting portion 81 and the second vertical flange portion 82 can be connected together by separate assembly. Preferably, the second horizontal mounting portion 81 and the second vertical flange portion 82 are integrally formed, resulting in a stronger connection structure. Specifically, the second positioning protrusion 83 is disposed on the second horizontal mounting portion 81.

[0035] In the actual installation process, such as Figure 1 As shown, the second lateral mounting portion 81 of the third movable edge piece 8 is also fixed to the upper window frame 1 by locking screws 100. This makes the installation and removal of the third movable edge piece 8 very convenient and the installation very secure.

[0036] To further improve the sliding structure of the outer window sash 3, inner window sash 4, screen sash 5, and lower window frame 2, such as... Figure 1 As shown, sliding rails 26 and pulleys 27 are respectively provided between the lower window frame 2 and the outer window sash 3, between the lower window frame 2 and the inner window sash 4, and between the lower window frame 2 and the screen sash 5. Specifically, each pulley 27 is provided on the corresponding outer window sash 3, inner window sash 4, and screen sash 5, and each sliding rail 26 is provided on the lower window frame 2. This ensures the smooth sliding of the outer window sash 3, inner window sash 4, and screen sash 5 on the lower window frame 2.

[0037] When the distance between the bottom and top edges of the window opening in the wall is large, in order to expand the overall height of the sliding door and window structure to fit the window opening in the wall without changing the dimensions of the outer window sash 3, inner window sash 4, and screen sash 5, such as... Figure 7 As shown, the present invention also includes a bottom window frame 9 and a fixed window sash 10. The bottom window frame 9 is located below the lower window frame 2, and the fixed window sash 10 is located between the lower window frame 2 and the bottom window frame 9.

[0038] To make the installation and removal of the fixed window sash 10 very convenient, such as Figure 7As shown, the bottom window frame 9 is provided with a lower fixed edge portion 91, and the bottom window frame 9 is also provided with a detachable lower clamping member 92. The lower end of the fixed window sash 10 is clamped between the lower clamping member 92 and the lower fixed edge portion 91. The lower window frame 2 is provided with an upper fixed edge portion 28, and the lower window frame 2 is also provided with a detachable upper clamping member 29. The upper end of the fixed window sash 10 is clamped between the upper clamping member 29 and the upper fixed edge portion 28. Specifically, the lower fixed edge portion 91 and the upper fixed edge portion 28 are both close to the outside, and the lower clamping member 92 and the upper clamping member 29 are both close to the inside.

[0039] To ensure convenient installation and removal of the upper clamping member 29 from the lower window frame 2, and of the lower clamping member 92 from the bottom window frame 9, as follows: Figure 7 As shown, the upper clamping member 29 and the lower window frame 2, and the lower clamping member 92 and the bottom window frame 9, are respectively provided with a clamping protrusion 93 and a clamping groove 94 for engaging with each other. Specifically, the two clamping protrusions 93 are respectively provided on the upper clamping member 29 and the lower clamping member 92, and the two clamping grooves 94 are respectively provided on the corresponding lower window frame 2 and the bottom window frame 9. Of course, the positions of the clamping protrusions 93 and the clamping grooves 94 can also be interchanged to achieve a detachable clamping and fixing function.

[0040] To further enhance the functionality of sliding door and window structures, such as Figure 7 As shown, the lower window frame 2 is also equipped with a window sill handrail 20. By providing the window sill handrail 20, people can lean against it to rest, or place ornaments or potted plants on it. In practical applications, the window sill handrail 20 and the lower window frame 2 can be connected together through separate assembly or integral molding. Preferably, the window sill handrail 20 and the lower window frame 2 are integrally molded, resulting in a stronger connection structure.

[0041] In practical applications, the upper window frame 1 and the lower window frame 2 are thermal break window frame structures.

[0042] In actual installation, from the outside to the inside, first install the outer window sash 3 between the upper window frame 1 and the lower window frame 2, then install and fix the first movable edge bracket 6, then install the inner window sash 4 between the upper window frame 1 and the lower window frame 2, then install and fix the second movable edge bracket 7, then install the screen window sash 5 between the upper window frame 1 and the lower window frame 2, and finally install and fix the third movable edge bracket 8 to complete the assembly.

Claims

1. A safe and easy-to-install sliding door and window structure, comprising an upper window frame (1), a lower window frame (2), an outer window sash (3) and an inner window sash (4) that are laterally slidably disposed between the upper window frame (1) and the lower window frame (2), wherein the upper window frame (1) is provided with an outdoor upper guardrail (11), characterized in that: The upper window frame (1) is provided with a detachable first movable side panel (6) that is parallel to and spaced apart from the outdoor upper side panel (11). A first limiting guide groove (12) is formed between the first movable side panel (6) and the outdoor upper side panel (11) to prevent the outer window sash (3) from detaching and to allow the outer window sash (3) to slide laterally. The upper window frame (1) is also provided with a detachable second movable side member (7) that is parallel to and spaced apart from the first movable side member (6). A second limiting guide groove (13) is formed between the second movable side member (7) and the first movable side member (6) to prevent the inner window sash (4) from detaching and to allow the inner window sash (4) to slide laterally. The outdoor upper edge (11), the first movable edge member (6), and the second movable edge member (7) are arranged in sequence from the outside to the inside.

2. The safe and easily detachable sliding door and window structure according to claim 1, characterized in that: The first movable edge member (6) and the upper window frame (1) are provided with a first positioning protrusion (63) and a first positioning groove (14) that are nested together; the first movable edge member (6) and the second movable edge member (7) are respectively composed of a first horizontal mounting part (61) and a first vertical edge part (62) connected together.

3. The safe and easily detachable sliding door and window structure according to claim 2, characterized in that: It also includes several locking screws (100), and the first horizontal mounting part (61) of the first movable edge member (6) and the first horizontal mounting part (61) of the second movable edge member (7) are both fixed to the upper window frame (1) by locking screws (100).

4. The safe and easily detachable sliding door and window structure according to claim 1, characterized in that: The lower window frame (2) is also provided with an outdoor lower edge (21). The vertical movement distance of the outer window sash (3) between the upper window frame (1) and the lower window frame (2) is less than the height distance from the bottom edge of the outer window sash (3) to the top edge of the outdoor lower edge (21).

5. The safe and easily detachable sliding door and window structure according to claim 1, characterized in that: The lower window frame (2) is also provided with a second step (22) and a first step (23) arranged sequentially from top to bottom. The second step (22) is close to the interior, and the first step (23) is close to the exterior. The lower window frame (2) is also provided with a drainage cavity (24) located below the first step (23) and facing outward. The first step (23) is also provided with a drainage hole (25) penetrating into the drainage cavity (24). The lower end of the outer window sash (3) is slidably disposed on the first step (23), and the lower end of the inner window sash (4) is slidably disposed on the second step (22).

6. The safe and easily detachable sliding door and window structure according to claim 5, characterized in that: The first step (23) and the second step (22) are respectively composed of a third step (223), a second step (222), and a first step (221) arranged from top to bottom. The lower end of the outer window sash (3) is slidably disposed on the second step (222) of the first step (23), and the lower end of the inner window sash (4) is slidably disposed on the second step (222) of the second step (22). The drainage hole (25) is opened on the first step (221) of the first step (23). A sealing strip or a weatherstripping (224) is also provided between the two third step (223) and the corresponding outer window sash (3) and inner window sash (4). A sealing strip or a weatherstripping (224) is also provided between the two second step (222) or the two first step (221) and the corresponding outer window sash (3) and inner window sash (4).

7. The safe and easily detachable sliding door and window structure according to claim 1, characterized in that: It also includes a screen sash (5) that can be slidably disposed between the upper window frame (1) and the lower window frame (2). The upper window frame (1) is also provided with a detachable third movable side panel (8) that is parallel to and spaced apart from the second movable side panel (7). A third limiting guide groove (15) is formed between the third movable side panel (8) and the second movable side panel (7) to prevent the screen sash (5) from detaching and to allow the screen sash (5) to slide laterally. The first limiting guide groove (12), the second limiting guide groove (13), and the third limiting guide groove (15) are arranged sequentially from the outside to the inside. A second positioning protrusion (83) and a second positioning groove (16) are also provided between the third movable side panel (8) and the upper window frame (1) and are nested together. The third movable side panel (8) is composed of a second horizontal mounting part (81) and a second vertical side panel (82).

8. The safe and easily detachable sliding door and window structure according to claim 7, characterized in that: The lower window frame (2) and the outer window sash (3), the lower window frame (2) and the inner window sash (4), and the lower window frame (2) and the screen window sash (5) are respectively provided with sliding rails (26) and pulleys (27) that slide in cooperation.

9. The safe and easily detachable sliding door and window structure according to claim 1, characterized in that: It also includes a bottom window frame (9) and a fixed window sash (10). The bottom window frame (9) is located below the bottom window frame (2), and the fixed window sash (10) is located between the bottom window frame (2) and the bottom window frame (9). The bottom window frame (9) is provided with a lower fixed edge (91), and the bottom window frame (9) is also provided with a detachable lower clamping member (92). The lower end of the fixed window sash (10) is clamped between the lower clamping member (92) and the lower fixed edge (91). Between, the lower window frame (2) is provided with an upper fixed edge part (28), and the lower window frame (2) is also provided with a detachable upper tightening member (29). The upper end of the fixed window sash (10) is clamped between the upper tightening member (29) and the upper fixed edge part (28). The upper tightening member (29) and the lower window frame (2), and the lower tightening member (92) and the bottom window frame (9) are respectively provided with a locking protrusion (93) and a locking groove (94) that are locked together.

10. The safe and easily detachable sliding door and window structure according to claim 9, characterized in that: The lower window frame (2) is also provided with a window sill handrail (20).

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