A mosquito-proof and ventilated aluminum alloy door and window

By using a motor-driven mechanical linkage structure and a limit plate design, the problem of mosquitoes entering the room when mosquito-proof and ventilated aluminum alloy doors and windows is solved, enabling the rapid unfolding and retraction of mosquito-proof curtains and improving the mosquito-proof effect.

CN224515105UActive Publication Date: 2026-07-17SHANGHAI OULIDE ENERGY SAVING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI OULIDE ENERGY SAVING TECHNOLOGY CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing mosquito-proof and ventilated aluminum alloy doors and windows are ineffective at preventing mosquitoes from entering the room when the windows are opened for ventilation.

Method used

The mosquito net uses a motor-driven mechanical linkage structure, which employs bevel gears, worm gears, and threaded rods to enable rapid opening and closing of the mosquito net. Combined with a limiting plate, it ensures that the mosquito net remains taut at all times, preventing mosquitoes from entering.

Benefits of technology

The mosquito curtain unfolds simultaneously when the window is opened and retracts simultaneously when the window is closed, significantly reducing the probability of mosquitoes entering the room, improving the mosquito-proof effect, and enhancing the reliability of mosquito prevention.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of aluminum alloy door and window technology, and discloses a mosquito-proof and ventilated aluminum alloy door and window, including a frame with an internal cavity. A motor is fixedly connected to the inner top wall of the cavity. In traditional door and window usage scenarios, users often need to open the window and then close the screen, which can allow mosquitoes to fly into the room. This device uses a motor-driven mechanical linkage structure. After the motor starts, through the precise cooperation of a series of transmission components such as bevel gears, worm gears, and threaded rods, the mosquito curtain can be quickly unfolded. The mosquito curtain unfolds synchronously when the window is opened and retracts synchronously when the window is closed, greatly reducing the probability of mosquitoes entering the room and significantly improving the mosquito-proof effect. At the same time, the limiting plates on both sides limit the mosquito curtain to prevent gaps from appearing when the wind blows, further enhancing the reliability of mosquito prevention.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window technology, and in particular to a mosquito-proof and ventilated aluminum alloy door and window. Background Technology

[0002] Aluminum alloy doors and windows are made of aluminum alloy extruded profiles as frames, mullions, and sashes. With their excellent performance and diverse designs, they have become the mainstream choice for modern building decoration. From material processing to functional design, they exhibit unique advantages and are widely used in various building scenarios. Aluminum alloy doors and windows have a variety of surface treatment processes. In addition to common anodizing, electrophoretic coating, and powder coating, fluorocarbon coating can also be used to give the door and window surfaces higher weather resistance and self-cleaning properties, making them suitable for high-end buildings.

[0003] However, existing mosquito-proof and ventilated aluminum alloy doors and windows have the following disadvantages:

[0004] In the practical application of building doors and windows, when windows are opened for ventilation, the air circulation brings fresh air into the room, but it also opens a channel for mosquitoes to enter the room. Although existing doors and windows are equipped with a variety of mosquito prevention facilities, the mosquito prevention effect is not satisfactory at the moment the window is opened and during continuous ventilation, which can easily lead to mosquitoes entering the room.

[0005] Therefore, this utility model provides a mosquito-proof and ventilated aluminum alloy door and window. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The problem solved by this utility model is to provide a highly practical mosquito-proof and ventilated aluminum alloy door and window, which solves the problem mentioned in the background art that mosquitoes can easily enter the room when the window is opened for ventilation.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a mosquito-proof and ventilated aluminum alloy door and window, comprising a frame, an interior cavity, a motor fixedly connected to the inner top wall of the cavity, a transmission rod splinedly connected to the output end of the motor, a first bevel gear fixedly connected to one end of the transmission rod, a second bevel gear meshing with the surface of the first bevel gear, a worm gear fixedly connected to the center of the second bevel gear, a worm wheel meshing with the surface of the worm gear, a threaded rod fixedly passing through the center of the worm wheel, a slider threadedly fitted onto the surface of the threaded rod, one side of the slider extending to the outside of the frame, a mounting box fixedly connected to the front of the frame, a take-up and release roller rotatably connected to the inner side wall of the mounting box via a coil spring, a mosquito-proof curtain fixedly connected to the surface of the take-up and release roller, one side of the mosquito-proof curtain extending to the outside of the mounting box, a connecting plate fixedly connected to one side of the mosquito-proof curtain, and the connecting plate fixedly connected to one side of the slider.

[0010] Optionally, the inner bottom wall of the frame has two sliding grooves, and the interior of each sliding groove is slidably connected to a limit block. The top of the limit block is fixedly connected to a window sash, so that the window sash can only slide smoothly in the horizontal direction, avoiding shaking or displacement, and ensuring that the opening and closing of the window is performed smoothly.

[0011] Optionally, two limiting plates are fixedly connected to the front of the frame. The two limiting plates are symmetrically arranged and contact the mosquito curtain. The limiting plates can firmly fix the mosquito curtain in a specific position, ensuring that the mosquito curtain always remains taut and flat, effectively preventing mosquitoes from entering the room through gaps.

[0012] Optionally, the inner wall of the cavity is provided with a first circular groove, and the worm rotates inside the first circular groove to avoid axial movement or radial offset, thereby ensuring the meshing accuracy between the worm and the worm wheel.

[0013] Optionally, a rectangular hole is provided on the front of the frame, and the slider slides inside the rectangular hole to prevent the slider from shaking during the sliding process, ensuring that the mosquito curtain can be opened and closed accurately and smoothly.

[0014] Optionally, a vertical plate is rotatably connected to the surface of the worm gear, and one side of the vertical plate is fixedly connected to the inner bottom wall of the cavity, which reduces the risk of deformation and shaking of the worm gear.

[0015] (III) Beneficial Effects

[0016] This utility model provides a mosquito-proof and ventilated aluminum alloy door and window, which has the following beneficial effects:

[0017] 1. This mosquito-proof and ventilated aluminum alloy door and window addresses the common problem in traditional window and door usage: users often need to open the door and window first and then close the screen. This brief time difference can allow mosquitoes to fly into the room. This device uses a motor-driven mechanical linkage structure. After the motor starts, through the precise coordination of a series of transmission components such as bevel gears, worm gears, and threaded rods, the mosquito-proof curtain can be quickly deployed. The curtain opens synchronously when the window is opened and retracts synchronously when the window is closed, greatly reducing the probability of mosquitoes entering the room and significantly improving the mosquito-proof effect. Simultaneously, the limiting plates on both sides limit the mosquito-proof curtain, preventing gaps from appearing when blown by the wind, further enhancing the reliability of mosquito prevention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the first bevel gear structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the coil spring structure of this utility model.

[0022] In the diagram: 1. Frame; 2. Motor; 3. First bevel gear; 4. Second bevel gear; 5. Worm; 6. Worm wheel; 7. Threaded rod; 8. Slider; 9. Mounting box; 10. Coil spring; 11. Retracting roller; 12. Mosquito curtain; 13. Connecting plate; 14. Window sash; 15. Limiting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a mosquito-proof and ventilated aluminum alloy door and window, including a frame 1. The frame 1 has an internal cavity. A motor 2 is fixedly connected to the inner top wall of the cavity. The motor 2 is a NEMA17 micro stepper motor. A transmission rod is splined to the output end of the motor 2. A first bevel gear 3 is fixedly connected to one end of the transmission rod. A second bevel gear 4 meshes with the surface of the first bevel gear 3. A worm 5 is fixedly connected to the center of the second bevel gear 4. A worm wheel 6 meshes with the surface of the worm 5. A threaded rod 7 passes through the center of the worm wheel 6. The worm 5 and the worm wheel 6 constitute a worm 5-worm wheel 6 transmission mechanism, which has the function of speed reduction and torque increase. The worm 5 rotates under the drive of the second bevel gear 4, driving the worm wheel 6 to rotate. The transmission characteristics of the worm gear 6 are such that the rotational speed of the worm gear 6 is significantly lower than that of the worm 5, but the torque is significantly increased. This allows the threaded rod 7 to drive the slider 8 to move at a suitable speed and with sufficient force, ensuring that the mosquito curtain 12 is opened and closed smoothly and powerfully. In addition, the worm gear 5 and worm gear 6 transmission also has a self-locking function. The surface of the threaded rod 7 is threaded with the slider 8. One side of the slider 8 extends to the outside of the frame 1. The front of the frame 1 is fixedly connected to the mounting box 9. The inner side wall of the mounting box 9 is rotatably connected to the take-up and release roller 11 through the coil spring 10. The surface of the take-up and release roller 11 is fixedly connected to the mosquito curtain 12. One side of the mosquito curtain 12 extends to the outside of the mounting box 9. One side of the mosquito curtain 12 is fixedly connected to the connecting plate 13. The connecting plate 13 is fixedly connected to one side of the slider 8.

[0025] The inner bottom wall of frame 1 has two sliding grooves, and the inside of each sliding groove is slidably connected to a limit block. The top of the limit block is fixedly connected to the window sash 14, so that the window sash 14 can only slide smoothly in the horizontal direction, avoiding shaking, displacement and other situations, and ensuring that the opening and closing of the window is carried out smoothly.

[0026] Two limiting plates 15 are fixedly connected to the front of the frame 1. The two limiting plates 15 are symmetrically arranged. The limiting plates 15 are in contact with the mosquito curtain 12. The limiting plates 15 can firmly fix the mosquito curtain 12 in a specific position, ensuring that the mosquito curtain 12 always remains taut and flat, effectively preventing mosquitoes from entering the room through the gaps.

[0027] The inner wall of the cavity is provided with a first circular groove, and the worm 5 rotates inside the first circular groove to avoid axial movement or radial displacement, thereby ensuring the meshing accuracy between the worm 5 and the worm wheel 6.

[0028] A rectangular hole is provided on the front of the frame 1. The slider 8 slides inside the rectangular hole to prevent the slider 8 from shaking during the sliding process and to ensure that the mosquito curtain 12 can be opened and closed accurately and smoothly.

[0029] A vertical plate is rotatably connected to the surface of the worm 5. One side of the vertical plate is fixedly connected to the inner bottom wall of the cavity, which reduces the risk of deformation and shaking of the worm 5.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When ventilation is needed, start the motor 2 in the cavity inside the frame 1. The output end of the motor 2 drives the transmission rod to rotate, and the first bevel gear 3 on the transmission rod rotates accordingly. Through meshing with the second bevel gear 4, the power is transmitted to the worm gear 5. The rotation of the worm gear 5 drives the worm wheel 6 to rotate. When the threaded rod 7 in the center of the worm wheel 6 rotates, the threaded slider 8 will slide in the rectangular hole opened on the front of the frame 1. The connecting plate 13 connected to one side of the slider 8 drives the mosquito curtain 12 to unfold from the mounting box 9. Then the window sash 14 can be opened, effectively preventing mosquitoes from entering the house when the window is opened.

[0032] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0033] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0034] 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. An anti-mosquito ventilated aluminum alloy door and window comprising a frame (1), characterized in that: The frame (1) has an internal cavity. A motor (2) is fixedly connected to the inner top wall of the cavity. A transmission rod is splined to the output end of the motor (2). A first bevel gear (3) is fixedly connected to one end of the transmission rod. A second bevel gear (4) meshes with the surface of the first bevel gear (3). A worm gear (5) is fixedly connected to the center of the second bevel gear (4). A worm wheel (6) meshes with the surface of the worm gear (5). A threaded rod (7) is fixedly passed through the center of the worm wheel (6). The surface of the threaded rod (7) is threaded. A slider (8) is attached, one side of which extends to the outside of the frame (1). A mounting box (9) is fixedly connected to the front of the frame (1). A take-up roller (11) is rotatably connected to the inner side wall of the mounting box (9) via a coil spring (10). A mosquito curtain (12) is fixedly connected to the surface of the take-up roller (11). One side of the mosquito curtain (12) extends to the outside of the mounting box (9). A connecting plate (13) is fixedly connected to one side of the mosquito curtain (12). The connecting plate (13) is fixedly connected to one side of the slider (8).

2. The mosquito-proof ventilated aluminum alloy door and window according to claim 1, characterized in that: The inner bottom wall of the frame (1) has two sliding grooves, and the interior of each sliding groove is slidably connected to a limiting block. The top of the limiting block is fixedly connected to a window sash (14).

3. The mosquito-proof ventilated aluminum alloy door and window according to claim 1, characterized in that: The front of the frame (1) is fixedly connected to two limiting plates (15), which are symmetrically arranged and are in contact with the mosquito curtain (12).

4. The mosquito-proof ventilated aluminum alloy door and window according to claim 1, characterized in that: The inner wall of the cavity is provided with a first circular groove, and the worm (5) rotates inside the first circular groove.

5. The mosquito-proof ventilated aluminum alloy door and window according to claim 1, characterized in that: The frame (1) has a rectangular hole on its front side, and the slider (8) slides inside the rectangular hole.

6. The mosquito-proof ventilated aluminum alloy door and window according to claim 1, characterized in that: The surface of the worm (5) is rotatably connected to a vertical plate, and one side of the vertical plate is fixedly connected to the inner bottom wall of the cavity.