Flat opening type screen window

By designing movable screen flaps and a snap-on mechanism, the problem of insufficient installation space for casement windows is solved, achieving stable installation and convenient operation of the screen.

CN223984430UActive Publication Date: 2026-03-10刘友权
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing casement windows lack space for installing screens, and the protruding window handles prevent the installation of ordinary screens.

Method used

Design a casement screen window that includes a screen frame and a movable screen leaf. The movable screen leaf can move horizontally within the screen frame. The rotation and locking of the screen leaf are achieved by using a movable latching mechanism and elastic latching components, avoiding the window handle and ensuring stable installation.

Benefits of technology

It enables the installation of screen windows on casement windows, avoiding interference from window handles and improving operational stability and ease of installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223984430U_ABST
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Abstract

The flat-opening type screen window comprises a screen window frame and a movable screen window leaf which is pivoted in the screen window frame and can be rotationally opened and closed, rail grooves are formed in the screen window frame in an up-down inward mode, the width of the movable screen window leaf is smaller than that of the screen window frame, and the movable screen window leaf can horizontally move in the screen window frame along the rail grooves; movable buckle mechanisms are arranged at the upper position and the lower position of the first side of the screen window frame, the movable buckle mechanisms are movably installed in the rail grooves and can horizontally move in the screen window frame along the rail grooves, and first buckle pieces which face the inner face of the screen window and can be elastically contracted and contracted are arranged at the positions away from the first side. The inner wall of the screen window frame rail groove is provided with a first open groove corresponding to the first buckle piece, and the position of the first open groove enables the front end of the first buckle piece to pop out of the first open groove when the movable screen window leaf drives the movable buckle mechanism to move towards the first side to the end portion. According to the side-hung type screen window, the movable screen window leaf can be rotated and opened conveniently, and the operation stability can be improved.
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Description

Technical Field

[0001] This application relates to the field of screen technology, and in particular to a casement screen. Background Technology

[0002] Due to their excellent safety and sealing properties, casement windows are widely used in various types of buildings. However, many casement windows currently do not have screens installed, and there is no space left in the window frame for installing screens. Furthermore, because the window (glass window) handle protrudes inward, ordinary screens cannot be installed. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a casement screen window that can be easily installed.

[0004] The technical solution provided by this utility model is as follows:

[0005] A hinged screen window includes a screen window frame and a movable screen window flap pivotally connected to the screen window frame and capable of rotatably opening and closing. The screen window frame has inwardly facing track grooves at the top and bottom. The width of the movable screen window flap is smaller than the width of the screen window frame, allowing the movable screen window flap to move horizontally along the track grooves within the screen window frame. A movable latching mechanism is provided at the top and bottom of a first side of the screen window frame. This movable latching mechanism is movably installed within the track grooves and can move horizontally along the track grooves within the screen window frame. A first latching member, elastically expandable and contractible, is provided at a position away from the first side, facing the inner surface of the screen window. A first slot is provided on the inner wall of the track grooves of the screen window frame corresponding to the first latching member. The position of the first slot is such that when the movable screen window flap moves the movable latching mechanism to the end of the first side, the front end of the first latching member pops out from the first slot, preventing the movable latching mechanism from moving horizontally and thus locking the movable screen window flap from moving horizontally. When the first latching member is pressed back, the movable latching mechanism can move horizontally.

[0006] Preferably, guide rail grooves are formed on both sides of the track groove, and the movable buckle mechanism includes a guide rail and a first buckle fixing part. The guide rail is accommodated in the guide rail groove on both sides, so that the movable buckle mechanism can move horizontally along the track groove. The first buckle fixing part is located inside the guide rail and is provided with a receiving hole that opens toward the inside of the screen window. An elastic element is provided between the first buckle and the inner wall of the receiving hole, so that the first buckle can elastically expand and contract toward the inside of the screen window.

[0007] Preferably, the first snap fastener has a limiting hole for limiting the elastic element in the direction toward the inner wall of the receiving hole.

[0008] Preferably, the front end of the first fastener has a protrusion, the width of which is smaller than the width of the main body of the first fastener, and the width of the first slot is smaller than the width of the main body of the first fastener, so that when the protrusion at the front end of the first fastener pops out from the first slot, the front end of the main body of the first fastener abuts against the inner wall of the track groove.

[0009] Preferably, when the first latching parts at the upper and lower positions are simultaneously pressed back by the movable screen leaf, the movable screen leaf can move horizontally along the track groove in the screen frame via the movable latching mechanism; the movable screen leaf has a pivot at the upper and lower positions on the first side, and the movable latching mechanism has a pivot hole at the end near the first side that cooperates with the pivot; the movable screen leaf and the screen frame are pivotally connected via the pivot and the pivot hole; when one of the first latching parts is pressed back, the movable latching mechanism thereon can move horizontally along the track groove in the screen frame, and after moving, the movable latching mechanisms at the upper and lower positions are staggered, allowing the pivot to be inserted into or disengaged from the pivot hole.

[0010] Preferably, the movable screen leaf is provided with a fixing buckle mechanism at the upper and lower positions of the second side opposite to the first side. The fixing buckle mechanism includes a second buckle member that can elastically expand and contract outward in the vertical direction. The screen frame is provided with a second buckle groove corresponding to the second buckle member. The position of the second buckle groove is such that when the movable screen leaf moves to the end of the first side, the second buckle member can be elastically squeezed by the second buckle groove and disengaged from the screen frame when the movable screen leaf is rotated open. When the movable screen leaf is rotated closed, the second buckle member can be elastically squeezed by the second buckle groove and enter the screen frame, and can prevent the movable screen leaf from rotating due to the front end of the first buckle member popping out.

[0011] Preferably, the screen frame is provided with a limiting member on the second side, the second slot is located on the limiting member, and the inner side of the limiting member is provided with a through groove extending to the end of the second side for accommodating the second fastener.

[0012] Preferably, the two ends of the second buckle are curved, so that the second buckle can smoothly enter and exit the second slot.

[0013] Preferably, the movable screen leaf and the screen frame are provided with a screen lock on the second side opposite to the first side, and the screen frame is provided with a fixed screen leaf inside the first side to fill the gap between the screen frame and the movable screen leaf after the movable screen leaf moves to the second side end.

[0014] Preferably, the upper and lower frames of the screen frame each include a first side frame and a second side frame that are fixedly connected to each other, and the track groove and the first slot are both located on the first side frame; or the screen frame includes an integral upper frame and a lower frame, and both the upper frame and the lower frame are provided with track grooves and have a first slot.

[0015] Compared to existing technologies, this utility model of a casement screen window features a movable screen leaf with a width smaller than the screen frame width. This movable screen leaf can move horizontally along a track groove within the screen frame, avoiding inward-protruding window handles and facilitating smooth installation of the casement screen window. Furthermore, the screen frame is equipped with a movable latching mechanism. This mechanism has a first latching element positioned away from the first side, facing inwards and capable of elastic expansion and contraction. When the movable screen leaf moves the latching mechanism to its end on the first side, the front end of the first latching element pops out from a corresponding first slot on the inner wall of the screen frame track groove, providing an inward-rotating thrust to open the movable screen leaf. At this point, the latching mechanism cannot move horizontally, thus locking the movable screen leaf and preventing it from moving horizontally during rotation, thereby improving operational stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a casement screen window according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 The image shows a top view of a hinged screen window in its closed state.

[0019] Figure 3 for Figure 1 The image shows a top view of a hinged screen window in its open position.

[0020] Figure 4 for Figure 1 The image shows a magnified view of a portion of the screen frame in a hinged screen window.

[0021] Figure 5 for Figure 4 The left view of the screen window frame (bottom frame) shown.

[0022] Figure 6 for Figure 1 The front view shown is of a hinged screen window with a fixed screen leaf installed.

[0023] Figure 7 for Figure 4 The front view of the track groove inside the screen window frame (lower frame) shown.

[0024] Figure 8 for Figure 7The top view of the track groove inside the screen window frame (lower frame) shown.

[0025] Figure 9 for Figure 7 Left view of the track groove section inside the screen window frame (lower frame).

[0026] Figure 10 for Figure 4 A simplified schematic diagram of the screen window frame is shown.

[0027] Figure 11 for Figure 10 The main view of the movable latch mechanism in the screen window frame shown.

[0028] Figure 12 for Figure 11 The top view of the main body of the movable latching mechanism shown.

[0029] Figure 13 for Figure 11 The left view of the main body of the movable latching mechanism shown.

[0030] Figure 14 for Figure 10 The front view of the first fastener in the screen window frame shown.

[0031] Figure 15 for Figure 14 The top view of the first fastener shown.

[0032] Figure 16 for Figure 14 The left view of the first fastener shown.

[0033] Figure 17 for Figure 10 The diagram shows a cross-sectional view of the inner track groove of the lower frame of the screen window frame, the main body of the movable buckle mechanism, and the first buckle component after assembly.

[0034] Figure 18 for Figure 10 The front view of the limiting component in the screen window frame shown.

[0035] Figure 19 for Figure 18 Left view of the limiting component shown.

[0036] Figure 20 for Figure 1 The diagram shows a movable screen leaf in a hinged screen window.

[0037] Figure 21 for Figure 20 The right view showing the pivot position of the movable screen window page.

[0038] Figure 22 for Figure 20The left view shows the position of the fixed buckle mechanism in the movable screen window.

[0039] Figure 23 for Figure 4 A simplified schematic diagram of another state of the screen window frame. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0044] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0045] like Figures 1 to 3As shown, this utility model embodiment provides a hinged screen window, including a screen window frame 1 and a movable screen window leaf 2 pivotally connected to the screen window frame 1 and capable of rotating and opening and closing. The screen window frame 1 is provided with track grooves 11 facing inwards at the top and bottom.

[0046] like Figures 4 to 9 As shown, in this embodiment, the track groove 11 of the screen frame 1 can be divided into an inner track groove 111 and an outer track groove 112. The width of the movable screen leaf 2 is smaller than the width of the screen frame 1, and the movable screen leaf 2 can move horizontally along the track groove 11 (specifically the inner track groove 111) within the screen frame 1. Thus, when the movable screen leaf 2 moves to the end of the screen frame 1 away from the window handle (hereinafter referred to as the "first side"), the gap between the movable screen leaf 2 and the screen frame 1 can avoid the inwardly protruding window handle, thereby allowing the casement screen to be installed smoothly. Of course, the width difference between the movable screen leaf 2 and the screen frame 1 should be large enough to avoid the window handle, but also as small as possible, so that when the movable screen leaf 2 moves to the end of the screen frame 1 near the window handle (hereinafter referred to as the "second side"), the gap between the movable screen leaf 2 and the screen frame 1 can be smaller than the window frame, allowing the window frame to cover the gap. Figure 6 As shown, in this embodiment, a fixed screen 3 (installed in the outer track groove 112) is installed inside the first side of the screen frame 1 to fill the gap between the screen frame 1 and the movable screen 2 after the movable screen 2 moves to the second side end, so as to ensure that the gap between the movable screen 2 and the screen frame 1 on the first side is closed.

[0047] In this embodiment, the movable screen window 2 is provided with a pivot 21 at the upper and lower positions of the first side (e.g., ...). Figure 20 and Figure 21 As shown), the screen frame 1 is equipped with a corresponding movable latching mechanism 12 (such as...). Figure 10 (As shown).

[0048] like Figures 11 to 17 As shown, in this embodiment, the movable latching mechanism 12 is movably installed in the track groove 11 and can move horizontally along the track groove 11 of the screen frame 1. A pivot hole 121 that cooperates with the pivot 21 is provided at the end near the first side, and a first latching member 122 that faces the inner surface of the screen and can be elastically scaled is provided at the position away from the first side. The inner wall of the track groove 11 of the screen frame 1 is provided with a first slot 113 corresponding to the first latching member 122. The position of the first slot 113 is such that when the movable screen leaf 2 drives the movable latching mechanism 12 to move to the end of the first side, the front end of the first latching member 122 pops out from the first slot 113, and the movable latching mechanism 12 cannot move horizontally, thereby locking the movable screen leaf 2 from moving horizontally. When the first latching member 122 is pressed back, the movable latching mechanism 12 can move horizontally.

[0049] After the front end of the first latch 122 pops out from the first slot 113, it provides an inward rotating force to the movable screen 2, facilitating its rotation. At this time, the movable latch mechanism 12 cannot move horizontally, thus locking the movable screen 2 and preventing it from moving horizontally. This ensures that the movable screen 2 will not move horizontally when rotated open, thereby improving operational stability.

[0050] In this embodiment, guide rail grooves are formed on both sides of the track groove 11 (e.g. Figure 9 As shown, the movable latching mechanism 12 includes a guide rail 123 with a stepped cross-section and a first latching member fixing part 124. The guide rail 123 and the first latching member fixing part 124 together constitute the main body of the movable latching mechanism. The guide rail 123 is accommodated in the guide rail groove on both sides, so that the movable latching mechanism 12 can move horizontally along the track groove 11. The first latching member fixing part 124 is located inside the guide rail 123 and is provided with a receiving hole 1241 that opens toward the inner surface of the screen window. An elastic element (not shown, preferably a spring) is provided between the first latching member 122 and the inner wall of the receiving hole 125, so that the first latching member 122 can elastically expand and contract toward the inner surface of the screen window.

[0051] The first fastener 122 has a limiting hole 1221 for limiting the elastic element in the direction (rear) towards the inner wall of the receiving hole 125. The front end of the first fastener 122 has a protrusion 1222, the width of which is smaller than the width of the main body of the first fastener 122. The width of the first slot 113 is also smaller than the width of the main body of the first fastener 122. This ensures that when the protrusion 1222 pops out from the first slot 113, the front end of the main body of the first fastener 122 abuts against the inner wall of the track groove 11, limiting the first fastener 122 and preventing it from popping out completely. In this embodiment, a shoulder 1223 with the same width as the main body of the first fastener 122 is also provided above the protrusion 1222. The shoulder 1223 and the protrusion 1222 together form a T-shape, and the shoulder 1223 facilitates pressing.

[0052] With the above structure, when the first latching members 122 at the upper and lower positions are simultaneously pressed back by the movable screen leaf 2, the movable screen leaf 2 can move horizontally along the track groove 11 in the screen frame 1 via the movable latching mechanism 12. When one of the first latching members 122 is pressed back, the movable latching mechanism 12 can move horizontally along the track groove 11 in the screen frame 1, causing the upper and lower movable latching mechanisms 12 to be staggered, allowing the pivot 21 to be inserted into or disengaged from the pivot hole 121.

[0053] like Figure 20 and Figure 22As shown, in this embodiment, the movable screen window sash 2 is provided with a fixing buckle mechanism 22 at the upper and lower positions on the second side. The fixing buckle mechanism 22 includes a second buckle member 221 that can elastically expand and contract outward in the vertical direction (elastic expansion and contraction can also be achieved by an internal spring). Figures 18 to 19 As shown, the screen frame 1 has a second slot 13 corresponding to the second fastener 221. The position of the second slot 13 is such that when the movable screen leaf 2 moves to the end on the first side, the second fastener 221 can be elastically squeezed by the second slot 13 and disengaged from the screen frame 1 when the movable screen leaf 2 rotates open. When the movable screen leaf 2 rotates closed, the second fastener 221 can be elastically squeezed by the second slot 13 and enter the screen frame 1, and it can prevent the movable screen leaf 2 from rotating due to the front end of the first fastener 122 popping out. This can prevent the movable screen leaf 2 from unintentionally rotating and opening. However, when it needs to be opened, the movable screen leaf 2 can be rotated to retract the second fastener 221 and pass through the second slot 13.

[0054] like Figures 18 to 19 As shown, in this embodiment, the screen frame 1 has a limiting member 14 on the second side, a second slot 13 is located on the limiting member 14, and the inner side of the limiting member 14 has a through slot 141 extending to the second side end for accommodating the second fastener 221. The lateral ends of the second fastener 221 are curved (e.g., ...). Figure 22 As shown), this allows the second buckle 221 to smoothly enter and exit the second slot 13.

[0055] In this embodiment, the movable screen window sash 2 and the screen window frame 1 are provided with a screen window lock (not shown) on the second side opposite to the first side. A top and bottom lock structure can be adopted so that the movable screen window sash 2 can be locked when the window is opened.

[0056] In this embodiment, the screen frame 1 includes an integral upper frame and a lower frame, both of which are provided with a track groove 11 and have a first slot 113. In other embodiments, the upper and lower frames of the screen frame 1 each include a first side frame and a second side frame that are fixedly connected to each other. The track groove 11 and the first slot 113 are both located on the first side frame. In this way, the second side frame can adopt a common structure. Only a specially designed first side frame needs to be installed at one end of the second side frame to obtain a screen frame that meets the requirements. This method makes processing and assembly simpler and more convenient.

[0057] The assembly and disassembly method of the casement screen window in this embodiment is described as follows. In the initial state, the movable latching mechanisms 12 at the upper and lower positions of the screen window frame 1 are both located at the first side end (e.g., Figure 10 As shown), the front ends of the first latching members 122 all pop out from the first latching slot. First, press one of the first latching members 122 (usually the first latching member 122 of the lower movable latching mechanism 12) to push it back, and the movable latching mechanism 12 can move horizontally along the track groove 11 on the screen frame 1. After moving it to the second side, the upper and lower movable latching mechanisms 12 are misaligned (as shown). Figure 23 (As shown). Then, place the movable screen panel 2 and insert the pivot 21 of the upper and lower positions of the movable screen panel 2 into the pivot hole 121 of the corresponding movable latching mechanism 12. Then push the moved movable latching mechanism 12 back to its original position, and the front end of its first latch 122 pops out from the first slot, thus assembling the movable screen panel 2 onto the screen frame 1. The disassembly method is similar to the assembly method. First, make the upper and lower movable latching mechanisms 12 both located at the first side end of the screen panel, and the front ends of the first latch 122 both pop out from the first slot. Press one of the first latch 122 (usually the first latch 122 of the lower movable latching mechanism 12) to press it back, and the movable latching mechanism 12 can move horizontally along the track groove 11 on the screen frame 1. After moving it to the second side, the upper and lower movable latching mechanisms 12 are staggered, so that the movable screen panel 2 can be easily removed. Because the movable latching mechanism 12 can be moved to offset the upper and lower positions, the distance between the pivot holes 121 in the upper and lower positions is significantly greater than the distance between the pivots 21, thus making it easy to assemble and disassemble the movable screen window sash 2. Furthermore, this structure allows for a smaller distance between the pivot holes 121 in the upper and lower positions when aligned (eliminating the need for a large gap for assembling and disassembling the movable screen window sash 2), resulting in a better fit between the movable screen window sash 2 and the screen frame 1, and smoother lateral movement of the movable screen window sash 2.

[0058] The usage of the casement screen window in this embodiment is described as follows. After the movable screen window flap 2 is assembled onto the screen window frame 1, it can be rotated to close. Just before closing, the second latch 221, due to its elasticity, is pressed into the screen window frame 1 by the second latch groove 13. The blocking force of the second latch groove 13 on the second latch 221 is greater than the pushing force of the first latch 122 on the movable screen window flap 2, ensuring that the engagement between the second latch groove 13 and the second latch 221 prevents the movable screen window flap 2 from rotating due to the ejection of the front end of the first latch 122. Thus, the movable screen window flap 2 can move horizontally along the track groove 11 within the screen window frame 1. In the initial state, i.e., the movable screen window flap 2 is at the first side end (e.g., ... Figure 1 As shown), the gap between the movable screen leaf 2 and the screen frame 1 can avoid the inward-protruding window handle, allowing the window to be in the closed state. When the window is open and the screen needs to be closed, simply move the movable screen leaf 2 to the second side end, which will lock the movable screen leaf 2. To open or close the window, move the movable screen leaf 2 to the first side end (as shown). Figure 6 (As shown), after rotating to open, you can operate the window handle.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flat screen window comprising a screen frame and a movable screen leaf pivotally connected to the screen frame to be rotatable open and closed, characterized in that, The track groove is formed on the two sides of the track groove in the transverse direction, the movable buckle mechanism includes a guide rail strip and a first buckle piece fixing part, the guide rail strip is accommodated in the guide rail groove on the two sides in the transverse direction, so that the movable buckle mechanism can move horizontally along the track groove, the first buckle piece fixing part is located on the inner side of the guide rail strip and is provided with an accommodating hole which is open to the inside of the screen window, and an elastic piece is arranged between the first buckle piece and the inner wall of the accommodating hole, so that the first buckle piece can be elastically scaled towards the inside of the screen window.

2. The retractable screen window according to claim 1, wherein The first buckle piece is provided with a limiting hole in the direction towards the inner wall of the accommodating hole, which is used for limiting the elastic piece.

3. The retractable screen window according to claim 2, wherein The front end of the first buckle piece is provided with a protruding part, the width of the protruding part is smaller than the width of the main body of the first buckle piece, and the width of the first slot is smaller than the width of the main body of the first buckle piece, so that when the protruding part at the front end of the first buckle piece is popped out of the first slot, the front end of the main body of the first buckle piece abuts against the inner wall of the track groove.

4. The retractable screen window according to claim 2, wherein When the first buckle pieces at the upper and lower positions are pressed back by the movable screen window leaf at the same time, the movable screen window leaf can move horizontally along the track groove in the screen window frame through the movable buckle mechanism; the first side of the movable screen window leaf is provided with a pivot at the upper and lower positions, the movable buckle mechanism is provided with a pivot hole which cooperates with the pivot at the end close to the first side, and the movable screen window leaf and the screen window frame are pivotally connected through the pivot and the pivot hole; when one of the first buckle pieces is pressed back, the movable buckle mechanism at the position can move horizontally along the track groove in the screen window frame, and after moving, the movable buckle mechanisms at the upper and lower positions are staggered, so that the pivot is fitted into or separated from the pivot hole.

5. The retractable screen window according to claim 2, wherein The second side of the movable screen window leaf opposite to the first side is provided with a fixed buckle mechanism at the upper and lower positions, the fixed buckle mechanism includes a second buckle piece which can be elastically scaled outwards in the vertical direction, the screen window frame is provided with a second slot corresponding to the second buckle piece, and the position of the second slot is such that when the movable screen window leaf moves to the end of the first side, the second buckle piece can be pressed out of the screen window frame by the second slot when the movable screen window leaf is rotated to be opened, and the second buckle piece can enter the screen window frame and prevent the movable screen window leaf from rotating due to the front end of the first buckle piece being popped out when the movable screen window leaf is rotated to be closed.

6. The retractable screen window according to claim 1, wherein The screen window frame is provided with a limiting piece at the second side, the second slot is located on the limiting piece, and the inner side of the limiting piece is provided with a through groove which extends to the end of the second side and is used for accommodating the second buckle piece.

7. The retractable screen window according to claim 6, wherein ​ 8. The retractable screen window according to claim 6, wherein The second buckle member is curved at the ends of the two lateral sides, so that the second buckle member can smoothly enter and exit the second buckle groove.

9. The retractable screen window according to claim 1, wherein The screen window frame is provided with a screen window lock at the second side opposite to the first side, and the screen window frame is internally provided with a fixed screen window leaf at the first side for filling the gap between the screen window frame and the movable screen window leaf after the movable screen window leaf moves to the second side end.

10. The retractable screen window according to claim 1, wherein The upper frame and the lower frame of the screen window frame each include a first side frame and a second side frame fixedly connected to each other, and the track groove and the first groove are located in the first side frame; or the screen window frame includes an upper frame and a lower frame in an integral structure, and the upper frame and the lower frame are each provided with a track groove and a first groove.