Screen window anti-falling device

By designing an anti-fall-off device for window screens, and utilizing a fixing plate and roller structure, the installation difficulties caused by dimensional errors between the window screen frame and the window frame were solved, achieving stable fixing of the window screen and improving its mosquito-proof effect.

CN224149469UActive Publication Date: 2026-04-21HANGZHOU HUANRAN INTELLIGENT TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HUANRAN INTELLIGENT TECH
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing screen window frames and window frames have size errors, which makes installation difficult or causes excessive gaps, affecting the mosquito prevention effect.

Method used

Design a screen window anti-fall-off device, which achieves stable fixation of the screen window body within the window frame by setting a first fixing plate, a second fixing plate, rollers, adjusting components and limiting structure, including adjusting the position of the rollers and adjusting the spacing of the fixing plates to adapt to window frames of different sizes.

Benefits of technology

Effectively prevents window screens from falling off the window frame, ensures stable installation of the window screens, adapts to window frames of different sizes, and improves mosquito prevention.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the technical scheme, the screen window anti-falling device is characterized in that the screen window anti-falling device comprises a screen window body, a plurality of first fixing plates are arranged in the screen window body, and a second fixing plate is arranged on one side of each first fixing plate; the screen window comprises a first fixing plate, a second fixing plate and a positioning groove, the positioning groove is formed in one side of the first fixing plate, so that the first fixing plate and the second fixing plate can be fixed into a screen window body, and then the screen window body can be fixed into a window frame after rolling wheels and the window frame are connected together in a clamped mode; the sliding block can drive the adjusting rod to move, at the moment, the spring can support the sliding block, the position of the rolling wheel between the first fixing plate and the second fixing plate is adjusted, the rolling wheel can move between the first fixing plate and the second fixing plate, and therefore the screen window body is prevented from falling off from the interior of the window frame.
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Description

Technical Field

[0001] This utility model relates to the field of screen technology, specifically to a screen anti-fall-off device. Background Technology

[0002] Window screens are nets used to block mosquitoes and flies, and their main function is "mosquito prevention." There are now more varieties than before. In addition to invisible screens and detachable screens, it is no longer as laborious to put on and take off screens as before. The existing invisible screens include a screen box, screen, and bottom frame. According to the window size, the guide rail, bottom frame, and pull beam screen box are cut in the workshop, packaged separately, and transported to the construction site. During installation, the screen box, guide rail, and bottom frame need to be installed on the window frame on-site for assembly and adjustment.

[0003] Currently, due to the dimensional errors between screen frames and window frames, if the screen frame is too long, it is not easy to fit into the window frame during installation; if the screen frame is too short, the gap after installation is too large, resulting in poor mosquito prevention. Therefore, it is necessary to design a screen anti-fall-off device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a screen window anti-fall-off device to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A screen window anti-fall-off device, comprising:

[0007] The screen window body has several first fixing plates inside, and a second fixing plate is provided on one side of each of the first fixing plates;

[0008] A positioning groove is formed on one side of the first fixing plate, and a positioning block is fixedly connected to one side of the second fixing plate. The positioning block is movably sleeved with the positioning groove.

[0009] Two rollers are provided, both of which are disposed between the first fixed plate and the second fixed plate, and a rotation hole is provided on one side of each roller.

[0010] An adjusting component is disposed inside the rotating hole and is used to adjust the position of the roller.

[0011] Preferably, the adjusting component includes:

[0012] Two adjusting rods are movably fitted inside the rotating hole. Two sliding grooves are provided on one side of the first fixing plate and one side of the second fixing plate.

[0013] A sliding block is slidably installed inside the sliding groove, and one end of the adjusting rod is fixedly connected to one side of the sliding block.

[0014] Preferably, the bottom surface of the sliding groove is provided with an installation groove, and a spring is fixedly connected inside the installation groove. The top end of the spring is fixedly connected to the bottom surface of the sliding block.

[0015] Preferably, two rotating grooves are provided on one side of the second fixing plate, and a rotating rod is rotatably installed inside the rotating groove.

[0016] Preferably, the first fixing plate has two threaded holes on one side, the rotating rod is threadedly connected to the threaded holes, and a rotating ring is fixedly connected to the outer wall of the rotating rod.

[0017] Preferably, a limiting groove is formed on the inner circular wall of the rotating hole, and a limiting ring is fixedly connected to the outer wall of the adjusting rod, with the limiting ring and the limiting groove being movably sleeved together.

[0018] In the above technical solution, the screen window anti-fall-off device provided by this utility model has the following beneficial effects:

[0019] By setting a first fixing plate and adjusting the distance between the first and second fixing plates, the first and second fixing plates can be fixed inside the screen window body. After the roller is snapped together with the window frame, the screen window body can be fixed inside the window frame. By setting a sliding block, since the sliding block is slidably installed inside the sliding groove, the sliding block can drive the adjusting rod to move. At this time, the spring can support the sliding block, thereby adjusting the position of the roller between the first and second fixing plates, so that the roller can move between the first and second fixing plates, thereby preventing the screen window body from falling off the window frame.

[0020] By setting a threaded hole, when the rotating rod rotates, the threaded hole and the rotating rod are threaded together, allowing the rotating rod to move inside the threaded hole, thereby adjusting the distance between the first fixed plate and the second fixed plate. This facilitates the later fixing of the first fixed plate and the second fixed plate inside screen bodies of different sizes. By setting a limiting ring, since the limiting ring and the limiting groove are movably fitted together, the adjusting rod is prevented from moving out of the rotating hole. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A three-dimensional structural diagram of an embodiment of the screen window anti-fall-off device of this utility model. Figure 1 .

[0023] Figure 2 A schematic diagram of the positioning block structure provided in an embodiment of the screen window anti-fall-off device of this utility model. Figure 2 .

[0024] Figure 3 A schematic diagram of the first fixing plate structure provided in an embodiment of the screen window anti-fall-off device of this utility model. Figure 3 .

[0025] Figure 4 A schematic diagram of the adjusting rod structure provided in an embodiment of the screen window anti-fall-off device of this utility model. Figure 4 .

[0026] 1. Screen body; 2. First fixing plate; 3. Second fixing plate; 4. Positioning groove; 5. Positioning block; 6. Roller; 7. Rotating hole; 8. Adjusting rod; 9. Sliding groove; 10. Sliding block; 11. Mounting groove; 12. Spring; 13. Rotating groove; 14. Rotating rod; 15. Threaded hole; 16. Rotating ring; 17. Limiting groove; 18. Limiting ring. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown in the figure, the present invention provides a screen window anti-fall-off device, including a screen window body 1. The screen window body 1 has a plurality of first fixing plates 2 inside, and a second fixing plate 3 is provided on one side of the first fixing plate 2. A positioning groove 4 is opened on one side of the first fixing plate 2, and a positioning block 5 is fixedly connected to one side of the second fixing plate 3. The positioning block 5 and the positioning groove 4 are movably fitted together. Two rollers 6 are provided between the first fixing plate 2 and the second fixing plate 3. A rotating hole 7 is opened on one side of the roller 6, and an adjusting component is provided inside the rotating hole 7 for adjusting the position of the roller 6.

[0029] In this embodiment, by setting a first fixing plate 2 and adjusting the distance between the first fixing plate 2 and the second fixing plate 3, the first fixing plate 2 and the second fixing plate 3 can be fixed inside the screen body 1. After the roller 6 is snapped together with the window frame, the screen body 1 can be fixed inside the window frame. By adjusting the position of the roller 6, the roller 6 can move between the first fixing plate 2 and the second fixing plate 3, thereby preventing the screen body 1 from falling off the window frame.

[0030] Specifically, the adjusting components include: two adjusting rods 8, both of which are movably sleeved inside the rotating hole 7; two sliding grooves 9 are opened on one side of the first fixed plate 2 and one side of the second fixed plate 3; a sliding block 10 is slidably installed inside the sliding groove 9; and one end of the adjusting rod 8 is fixedly connected to one side of the sliding block 10.

[0031] In this embodiment, by setting a sliding block 10, since the sliding block 10 is slidably installed inside the sliding groove 9, the sliding block 10 can drive the adjusting rod 8 to move, thereby adjusting the position of the roller 6 between the first fixed plate 2 and the second fixed plate 3.

[0032] Specifically, the bottom surface of the sliding groove 9 is provided with an installation groove 11, and a spring 12 is fixedly connected inside the installation groove 11. The top end of the spring 12 is fixedly connected to the bottom surface of the sliding block 10.

[0033] In this embodiment, by setting a spring 12, since the top end of the spring 12 is fixedly connected to the bottom surface of the sliding block 10, the spring 12 can support the sliding block 10.

[0034] Specifically, two rotating grooves 13 are provided on one side of the second fixed plate 3, and a rotating rod 14 is rotatably installed inside the rotating groove 13. The outer wall surface of the rotating rod 14 is provided with threads.

[0035] In this embodiment, by providing a rotating rod 14, which is rotatably installed inside the rotating groove 13, the rotating rod 14 can rotate inside the rotating groove 13.

[0036] Specifically, two threaded holes 15 are provided on one side of the first fixed plate 2, and the rotating rod 14 is threadedly connected to the threaded holes 15. A rotating ring 16 is fixedly connected to the outer wall of the rotating rod 14.

[0037] In this embodiment, by providing a threaded hole 15, when the rotating rod 14 is rotating, the threaded hole 15 is threadedly connected to the rotating rod 14, allowing the rotating rod 14 to move inside the threaded hole 15, thereby adjusting the distance between the first fixing plate 2 and the second fixing plate 3, which facilitates the later fixing of the first fixing plate 2 and the second fixing plate 3 inside the screen body 1 of different sizes.

[0038] Specifically, a limiting groove 17 is provided on the inner circular wall of the rotating hole 7, and a limiting ring 18 is fixedly connected to the outer wall of the adjusting rod 8. The limiting ring 18 and the limiting groove 17 are movably sleeved together.

[0039] In this embodiment, by setting a limiting ring 18, since the limiting ring 18 is movably sleeved with the limiting groove 17, the adjusting rod 8 is prevented from moving out of the rotating hole 7.

[0040] Working steps: 1. By setting the first fixing plate 2 and adjusting the distance between the first fixing plate 2 and the second fixing plate 3, the first fixing plate 2 and the second fixing plate 3 can be fixed inside the screen window body 1. Then, the roller 6 is snapped together with the window frame, so that the screen window body 1 can be fixed inside the window frame. By setting the sliding block 10, since the sliding block 10 is slidably installed inside the sliding groove 9, the sliding block 10 can drive the adjusting rod 8 to move. At this time, the spring 12 can support the sliding block 10, thereby adjusting the position of the roller 6 between the first fixing plate 2 and the second fixing plate 3, so that the roller 6 can move between the first fixing plate 2 and the second fixing plate 3, thereby preventing the screen window body 1 from falling off the window frame.

[0041] Second, by setting the threaded hole 15, when the rotating rod 14 is rotating, the threaded hole 15 is threadedly connected to the rotating rod 14, allowing the rotating rod 14 to move inside the threaded hole 15, thereby adjusting the distance between the first fixing plate 2 and the second fixing plate 3. This facilitates the later fixing of the first fixing plate 2 and the second fixing plate 3 into the screen body 1 of different sizes. By setting the limiting ring 18, since the limiting ring 18 is movably sleeved with the limiting groove 17, the adjusting rod 8 is prevented from moving out of the rotating hole 7.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A screen anti-drop device, characterized by, include: The screen body (1) has several first fixing plates (2) inside, and a second fixing plate (3) is provided on one side of the first fixing plate (2); The positioning groove (4) is opened on one side of the first fixing plate (2), and a positioning block (5) is fixedly connected to one side of the second fixing plate (3). The positioning block (5) is movably sleeved with the positioning groove (4). Two rollers (6) are provided, both of which are disposed between the first fixed plate (2) and the second fixed plate (3), and a rotating hole (7) is provided on one side of each roller (6); An adjustment component is disposed inside the rotating hole (7) and is used to adjust the position of the roller (6).

2. The screen anti-drop device according to claim 1, characterized in that, The adjusting component includes: Two adjusting rods (8) are movably sleeved inside the rotating hole (7). Two sliding grooves (9) are opened on one side of the first fixing plate (2) and one side of the second fixing plate (3). A sliding block (10) is slidably installed inside the sliding groove (9), and one end of the adjusting rod (8) is fixedly connected to one side of the sliding block (10).

3. The screen anti-drop device according to claim 2, wherein, The bottom surface inside the sliding groove (9) is provided with an installation groove (11), and a spring (12) is fixedly connected inside the installation groove (11). The top end of the spring (12) is fixedly connected to the bottom surface of the sliding block (10).

4. The screen anti-drop device according to claim 1, wherein Two rotating grooves (13) are provided on one side of the second fixing plate (3), and a rotating rod (14) is rotatably installed inside the rotating groove (13).

5. The screen anti-drop device according to claim 4, wherein Two threaded holes (15) are provided on one side of the first fixing plate (2), and the rotating rod (14) is threadedly connected to the threaded holes (15). A rotating ring (16) is fixedly connected to the outer wall of the rotating rod (14).

6. The screen anti-drop device according to claim 2, wherein The inner circular wall of the rotating hole (7) is provided with a limiting groove (17), and the outer wall of the adjusting rod (8) is fixedly connected with a limiting ring (18), and the limiting ring (18) is movably sleeved with the limiting groove (17).