High-efficiency ventilated sand screen

Abstract

The utility model relates to a louver window technical field especially relates to a high -efficient ventilation sand prevention louver window. Its technical scheme: including window frame and louver board, the louver board equidistance is fixed in the window frame, the louver board front end is inclined downward, the upper and lower both ends of window frame all are set up with the rolling groove, the rolling groove is rotatably connected with the center pivot, the center pivot is fixed with the rolling roller on the upper, the rolling roller is wound with the sand prevention net, the sand prevention net end stretches out and is fixed with a pair of pull rope, the lower center pivot is fixed with a pair of rolling disc, the pull rope lower end is fixed on the rolling disc, the window frame side wall is provided with the drive assembly that drives the synchronous rotation of center pivot. The utility model sets up the sand prevention net structure that can automatic rolling and unfolding outside the louver window, under the sand and dust weather, put down the sand and dust net, avoid the sand and dust to go into the room, can unfold the sand prevention net under the fine weather, realize the purpose of high -efficient ventilation.

Description

Technical Field

[0001] This utility model relates to the field of louver technology, specifically a high-efficiency ventilation and sand-proof louver. Background Technology

[0002] Fixed venetian blinds are a type of blind whose slats cannot be adjusted after installation. They are typically made of materials such as aluminum alloy, wood, or plastic. Their main characteristics are simple structure, easy installation, and a fixed slat angle that cannot be manually adjusted to change light or ventilation. Compared to adjustable venetian blinds, fixed venetian blinds are more suitable for scenarios where frequent adjustments to light and ventilation are not required.

[0003] Compared to other windows, its louvers have a perforated structure, which provides good ventilation. The angled louvers can increase indoor privacy. However, due to its good ventilation, sand and dust can directly enter the room during dusty weather. If an additional sand screen is used, the overall installation is more complicated. If it is not removed after installation, the sand screen itself will block the air and cause partial blockage, which will affect the ventilation effect in normal weather. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency ventilation and sand-proof louver to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a window frame and louvers, the louvers are equidistantly fixed within the window frame, the front end of the louvers is inclined downwards, and both the upper and lower ends of the window frame are provided with winding grooves. A central rotating shaft is rotatably connected within the winding grooves. A winding roller is fixed on the upper central rotating shaft, and a sand-proof net is wound around the winding roller. A pair of pull ropes extend from the end of the sand-proof net and are fixed thereon. A pair of winding reels are fixed on the lower central rotating shaft, and the lower ends of the pull ropes are fixed to the winding reels. A drive assembly for synchronously rotating the central rotating shaft is provided on the side wall of the window frame.

[0006] Preferably, the drive assembly includes a drive slot and a drive box. The central rotating shaft extends into the drive slot near one end and is fixedly connected to a driven bevel gear. A pair of bearing seats are fixed in the drive slot. A transmission shaft is rotatably connected between the bearing seats. Transmission bevel gears are fixed at both ends of the transmission shaft. The transmission bevel gears mesh with the driven bevel gears.

[0007] Preferably, a worm gear is fixed at the middle position of the transmission shaft, a worm is rotatably connected in the drive groove, the worm and the worm gear mesh, the drive box is fixed to the side wall of the window frame, and a servo motor and a wireless controller for driving the worm to rotate are fixed in the drive box.

[0008] Preferably, the front end of the winding groove is an open structure, and a baffle is fixed on the front side of the window frame at a position aligned with the opening of the winding groove.

[0009] Preferably, a pressure frame is fixed on the front side of the window frame and at a position aligned with the side of the sandproof net. The pressure frame has an L-shaped structure, and the side of the sandproof net passes through the pressure frame.

[0010] Preferably, the pulling rope is made of non-stretchable silk material, and cloth strips are provided on both sides of the sand-proof net.

[0011] Compared with the prior art, the beneficial effects of this utility model are: a sand-proof net structure that can be automatically rolled up and unfolded is set on the outside of the louvers. In sandy weather, the sand-proof net can be lowered to prevent sand from entering the room, while in sunny weather, the sand-proof net can be unfolded to achieve efficient ventilation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front appearance structure of a high-efficiency ventilation and sand-proof louver of this utility model;

[0013] Figure 2 This is a side cross-sectional view of a high-efficiency ventilation and sand-proof louver according to the present invention.

[0014] Figure 3 This is a schematic diagram of the central pivot structure of a high-efficiency ventilation and sand-proof louver according to the present invention;

[0015] Figure 4 This is a schematic diagram of the internal structure of the drive groove of a high-efficiency ventilation and sand-proof louver according to this utility model.

[0016] In the diagram: 1. Window frame; 11. Louver; 12. Pressure frame; 13. Baffle frame; 2. Rewind chute; 3. Central shaft; 4. Rewind reel; 5. Rewind roller; 6. Sandproof net; 7. Pull rope; 8. Drive chute; 81. Bearing housing; 82. Transmission shaft; 83. Transmission bevel gear; 84. Driven bevel gear; 85. Worm gear; 86. Worm; 87. Drive box. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: including a window frame 1 and louvers 11, the louvers 11 are fixed equidistantly inside the window frame 1, the front end of the louvers 11 is inclined downward, the upper and lower ends of the window frame 1 are provided with a winding groove 2, a central rotating shaft 3 is rotatably connected in the winding groove 2, a winding roller 5 is fixed on the upper central rotating shaft 3, a sandproof net 6 is wound around the winding roller 5, a pair of pull ropes 7 are extended from the end of the sandproof net 6 and fixed thereon, a pair of winding reels 4 are fixed on the lower central rotating shaft 3, the lower end of the pull ropes 7 is fixed on the winding reels 4, a drive assembly for driving the central rotating shaft 3 to rotate synchronously is provided on the side wall of the window frame 1, the pull ropes 7 are made of non-stretchable silk material, and cloth strips are provided on both sides of the sandproof net 6.

[0019] The drive assembly includes a drive groove 8 and a drive box 87. A central rotating shaft 3 extends into the drive groove 8 near one end and is fixedly connected to a driven bevel gear 84. A pair of bearing seats 81 are fixed inside the drive groove 8, and a transmission shaft 82 is rotatably connected between the bearing seats 81. Transmission bevel gears 83 are fixed at both ends of the transmission shaft 82, meshing with the driven bevel gear 84. A worm gear 85 is fixed in the middle of the transmission shaft 82. A worm 86 is rotatably connected inside the drive groove 8, meshing with the worm gear 85. The drive box 87 is fixed to the side wall of the window frame 1. A drive box 87 is fixed with... The device includes a servo motor that drives the worm gear 86 to rotate and a wireless controller. The front end of the take-up groove 2 has an open structure. A baffle 13 is fixed on the front side of the window frame 1 and aligned with the opening of the take-up groove 2. A pressure frame 12 is fixed on the front side of the window frame 1 and aligned with the side of the sandproof net 6. The pressure frame 12 has an L-shaped structure, and the side of the sandproof net 6 passes through the pressure frame 12. The servo motor in the drive box 87 drives the worm gear 86, and the worm wheel 85 drives the transmission shaft 82 and the transmission bevel gear 83 to rotate. The driven bevel gear 84 then drives the central shaft 3 to rotate synchronously.

[0020] Working principle: First, connect the entire device to an external power source. The rotation of the central shaft 3 drives the winding roller 5 and winding reel 4 to rotate, thus winding and unwinding the sand-proof netting 6 and the pull rope 7. In this case, while winding the sand-proof netting 6, the pull rope 7 is unwound simultaneously, allowing the sand-proof netting 6 to be pulled out from the winding groove 2 and cover the outer surface of the window frame 1, achieving the purpose of sand prevention. Conversely, the sand-proof netting 6 can be stored back into the winding groove 2, removing all obstructions to the louvers and enabling efficient ventilation. In the specific operation, the servo motor in the drive box 87 can be used to drive the worm gear 86, and the worm wheel 85 can be used to drive the transmission shaft 82 and the transmission bevel gear 83 to rotate. Then, the driven bevel gear 84 can be used to drive the central shaft 3 to rotate synchronously. The operation is simple and convenient, and there is no need for manual disassembly and assembly of the sandproof net 6. During the whole process, the baffle frame 13 can prevent wind and sand from directly entering the winding groove 2, and the pressure frame 12 can be used to squeeze the sandproof net 6 on both sides to reduce the risk of the sandproof net 6 running off-center.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency ventilation and sand-proof louver, comprising a window frame (1) and louver panels (11), characterized in that: The louvers (11) are fixed at equal intervals inside the window frame (1). The front end of the louvers (11) is tilted downward. The window frame (1) has a winding groove (2) at both the upper and lower ends. A central rotating shaft (3) is rotatably connected inside the winding groove (2). A winding roller (5) is fixed on the upper central rotating shaft (3). A sandproof net (6) is wound around the winding roller (5). A pair of pull ropes (7) are fixed at the end of the sandproof net (6). A pair of winding reels (4) are fixed on the lower central rotating shaft (3). The lower end of the pull rope (7) is fixed on the winding reel (4). A drive assembly for driving the central rotating shaft (3) to rotate synchronously is provided on the side wall of the window frame (1).

2. The high-efficiency ventilation and sand-proof louver according to claim 1, characterized in that: The drive assembly includes a drive groove (8) and a drive box (87). The central rotating shaft (3) extends into the drive groove (8) at one end near the drive groove (8) and is fixedly connected to a driven bevel gear (84). A pair of bearing seats (81) are fixed in the drive groove (8). A transmission shaft (82) is rotatably connected between the bearing seats (81). Transmission bevel gears (83) are fixed at both ends of the transmission shaft (82). The transmission bevel gears (83) mesh with the driven bevel gears (84).

3. The high-efficiency ventilation and sand-proof louver according to claim 2, characterized in that: A worm gear (85) is fixed in the middle of the transmission shaft (82), and a worm (86) is rotatably connected in the drive groove (8). The worm (86) and the worm gear (85) mesh. The drive box (87) is fixed on the side wall of the window frame (1). A servo motor and a wireless controller that drive the worm (86) to rotate are fixed in the drive box (87).

4. The high-efficiency ventilation and sand-proof louver according to claim 1, characterized in that: The front end of the take-up groove (2) is an open structure, and a baffle (13) is fixed on the front side of the window frame (1) at a position aligned with the opening of the take-up groove (2).

5. The high-efficiency ventilation and sand-proof louver according to claim 1, characterized in that: A pressure frame (12) is fixed on the front side of the window frame (1) and aligned with the side of the sandproof net (6). The pressure frame (12) is an L-shaped structure, and the side of the sandproof net (6) passes through the pressure frame (12).

6. The high-efficiency ventilation and sand-proof louver according to claim 1, characterized in that: The pulling rope (7) is made of non-stretchable silk material, and the sandproof net (6) has cloth strips on both sides.

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