An easy-to-clean window screen

Abstract

This invention discloses an easy-to-clean window screen, including a fixing frame horizontally fixed to the upper part of a wall. A window frame is fixed below the fixing frame, and a screen is slidably fitted inside the window frame. The upper end of the screen is elastically wound around the fixing frame. A dust collection box is movably installed below the fixing frame on the side closest to the interior. The dust collection box contains a cleaning component for cleaning the screen, and the cleaning component contains a scraper for cleaning itself. Below the cleaning component is a buffer component to cushion the impact force generated when the screen rolls upwards. The upper end of the buffer component is connected to both sides of the cleaning component via a transmission connection. The beneficial effects of this invention are: after the brush cleans the screen, the positioning block presses against the baffle, causing the brush to rotate downwards, contacting the scraper, which then removes dust adhering to the brush; simultaneously, the baffle cushions the impact force of the positioning plate on the dust collection box.

Description

Technical Field

[0001] This invention relates to the field of window screen technology, specifically a window screen that is easy to clean. Background Technology

[0002] Window screens are known for their toughness and corrosion resistance, making them widely used in homes, offices, and hotels for mosquito and insect prevention. High-end screens include stainless steel, epoxy-coated, and fiberglass plain-woven invisible screens. Traditional roller blind-style insect screens tend to accumulate dust over time, leading to poor ventilation and requiring frequent cleaning. However, most cleaning is done manually, which requires careful attention to avoid excessive force that could damage the screen. This wastes time and resources and poses a safety hazard, especially on higher floors.

[0003] For example, Chinese Patent Publication No. CN110159174B discloses a roller shutter-type insect-proof screen for doors and windows, which includes a bracket and a screen body. A transmission mechanism is fixed inside the bracket, and one side of the transmission mechanism is connected to the screen body via a rotating shaft. A cleaning device is fixed to the inner wall of the bracket. The cleaning device includes a support plate, a sliding plate that slides onto one surface of the support plate, a cleaning plate that is movably connected to one surface of the sliding plate, and a dust collection hopper that is movably connected to the periphery of the support plate. This invention uses a motor and a reducer to drive the screen body to move up and down. An electric push rod drives a rectangular slider on the sliding plate to slide back and forth within a rectangular groove on the support plate. At this time, a soft brush gently sweeps away the dust on the surface of the screen body, solving the problems of existing roller shutter-type insect-proof screens for doors and windows being inconvenient to clean, leading to excessive waste of manpower and resources, and easily damaging the screen body.

[0004] However, in the above method, when the brush cleans the mesh, dust will adhere to the brush. If too much dust adheres, it will affect the subsequent cleaning effect of the brush on the mesh. Summary of the Invention

[0005] The purpose of this invention is to provide a window screen that is easy to clean, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A window screen that is easy to clean includes a fixing frame, which is horizontally fixed to the upper part of the wall. A window frame is fixed below the fixing frame, and a screen is slidably fitted inside the window frame. The upper end of the screen is elastically wound inside the fixing frame. A dust collection box is movably installed below the fixing frame on the side closer to the room. The dust collection box is provided with a cleaning component for cleaning the screen. The cleaning component is provided with a scraper for cleaning the cleaning component. A buffer component is provided below the cleaning component to buffer the impact force generated when the screen is rolled upward. The upper end of the buffer component is connected to both sides of the cleaning component.

[0008] As a further aspect of the present invention: the cleaning component includes a dust collection box, which is horizontally fixed to the side of the mounting frame near the interior via an installation component. A cleaning port is provided on the side of the dust collection box near the screen. Partitions are fixed inside the dust collection box near both ends. A rotating rod is horizontally rotatably connected inside the dust collection box, passing through the partitions. A brush is fixed on the side of the rotating rod near the cleaning port, extending out of the cleaning port and contacting the screen. A gear is fixed at one end of the rotating rod extending out of the partitions, and the gear is connected to a buffer component for transmission.

[0009] As a further aspect of the present invention: the buffer assembly includes a baffle, the lower end of which is in movable contact with the lower end of the mesh, the baffle being horizontally positioned below the dust collection box, and a first sliding rod and a second sliding rod being vertically fixed to the upper end of the baffle, both of which pass through the bottom end of the dust collection box, the top end of the baffle being elastically connected to the bottom end of the dust collection box, and a rack being vertically fixed to one end of the first sliding rod that extends into the dust collection box, the rack engaging with a gear for transmission.

[0010] As a further aspect of the present invention: a scraper bracket for cleaning the brush is fixed inside the dust collection box on the side near the cleaning port, and the scraper bracket is in active contact with the brush.

[0011] As a further aspect of the present invention: a roller is horizontally rotatably connected inside the fixed frame, and torsion springs are fixed between both ends of the roller and the inner wall of the fixed frame, and the upper end of the yarn is wound around the outside of the roller.

[0012] As a further embodiment of the present invention: the inner ring of the window frame is provided with a guide rail, the left and right sides of the screen are slidably engaged with the respective guide rails, the lower end of the screen is fixed with a positioning plate, the positioning plate is slidably engaged with the guide rails, the two sides of the positioning plate near the interior are respectively fixed with positioning blocks, the positioning blocks are in movable contact with the bottom end of the baffle, the lower ends of the two sides of the window frame near the interior are provided with positioning components, the positioning blocks are in movable contact with the positioning components, and the side of the positioning plate near the interior is fixed with a handle for easy pulling of the screen.

[0013] As a further aspect of the present invention: a second sliding groove is horizontally provided at the lower ends of both sides of the window frame near the interior. The positioning component includes a limiting block, which slides in conjunction with the second sliding groove. The limiting block is horizontally elastically connected to the inner wall of the second sliding groove. The upper end of the side of the limiting block extending out of the second sliding groove is an inclined surface. A lever for releasing the positioning plate is fixed on the side of the limiting block near the interior. The lever passes through the window frame.

[0014] As a further aspect of the present invention: the upper ends of the two sides of the window frame near the interior are provided with a first sliding groove, the first sliding groove corresponds to the dust collection box, the mounting component includes a mounting block, the mounting block is a right-angle frame structure, the top of one right-angle side of the mounting block is slidably engaged with the first sliding groove, the mounting block is horizontally elastically connected to the inner wall of the first sliding groove, and the two right-angle sides of the mounting block are movably engaged with the side of the dust collection box near the interior.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: With the dust collection box installed, during the opening of the screen, the brush cleans the dust adhering to the screen surface. When the positioning block presses against the baffle, the baffle moves the rack upwards, causing the gear to rotate and the brush to rotate downwards. As the brush rotates, it contacts the scraper frame inside the dust collection box. Because the brush is flexible, the scraper frame can remove the dust adhering to the brush. Simultaneously, during the pressing and contacting process between the positioning block and the baffle, the torque potential energy of the roller winding the screen is buffered, preventing the positioning plate from directly colliding with the dust collection box due to impact, thus protecting the dust collection box and the entire window frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a front view of the overall structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the mesh in this invention.

[0019] Figure 4 This is a schematic diagram of the dust collection box in this invention.

[0020] Figure 5 This is a rear view of the dust collection box structure in this invention.

[0021] Figure 6 This is a left sectional view of the cleaning component in the dust collection box of the present invention.

[0022] Figure 7 This is a left sectional view of the buffer assembly in the dust collection box of the present invention.

[0023] Figure 8This is an enlarged view of the structure of A in this invention.

[0024] Figure 9 This is an enlarged view of the structure of B in this invention.

[0025] Figure 10 This is an enlarged view of the structure of C in this invention.

[0026] Figure 11 This is an enlarged view of the structure of D in this invention.

[0027] In the diagram: 1. Fixing frame; 2. Window frame; 201. Guide rail; 202. First sliding groove; 203. Second sliding groove; 3. Dust collection box; 301. Cleaning port; 302. Rotating rod; 303. Brush; 304. Scraper frame; 305. Gear; 306. Partition; 4. Drum; 401. Torsion spring; 5. Screen; 6. Positioning plate; 601. Positioning block; 602. Handle; 7. Baffle; 701. First sliding rod; 702. Second sliding rod; 703. Rack; 8. Mounting block; 9. Limiting block; 901. Toggle lever. Detailed Implementation

[0028] Please see Figure 1-11 In this embodiment of the invention, a screen window that is easy to clean includes a fixing frame 1, which is horizontally fixed to the upper end of the wall. A window frame 2 is fixed below the fixing frame 1. A screen 5 is slidably fitted inside the window frame 2. The upper end of the screen 5 is elastically wound inside the fixing frame 1. A dust collection box 3 is movably installed on the side of the fixing frame 1 near the room. A cleaning component for cleaning the screen 5 is provided inside the dust collection box 3. A scraper 304 for cleaning the cleaning component is provided inside the cleaning component. A buffer component for buffering the impact force generated when the screen 5 is rolled upward is provided below the cleaning component. The upper end of the buffer component is connected to both sides of the cleaning component. When the bottom end of the screen 5 slides upward and squeezes the buffer component, the buffer component drives the cleaning component to rotate and contact the scraper 304, and the scraper 304 cleans the cleaning component.

[0029] In actual use, initially, the screen 5 is closed, which can block dust from the outside air from entering the room. At this time, the blocked dust adheres to the surface of the screen 5, and over time, the air circulation effect of the screen 5 is not ideal. When the screen 5 is opened, the screen 5 slides upward quickly under the action of elastic winding, and the cleaning component cleans the screen 5. At the same time, when the bottom of the screen 5 moves to contact the buffer component, the buffer component drives the cleaning component to rotate, cleaning the cleaning component and preventing too much dust from adhering to the cleaning component, which would affect the cleaning effect on the screen.

[0030] Specifically, the cleaning assembly includes a dust collection box 3, which is horizontally fixed to the side of the mounting frame 1 near the room via an installation component. A cleaning port 301 is provided on the side of the dust collection box 3 near the screen 5. A partition 306 is fixed inside the dust collection box 3 near both ends. A rotating rod 302 is horizontally rotatably connected inside the dust collection box 3, passing through the partition 306. A brush 303 is fixed on the side of the rotating rod 302 near the cleaning port 301. The brush 303 extends out of the cleaning port 301 and contacts the screen 5. When the screen 5 slides downwards or upwards, the brush 303 can clean the dust adhering to the screen 5, keeping it clean and allowing for smoother airflow. A gear 305 is fixed to the end of the rotating rod 302 extending out of the partition 306, and the gear 305 is connected to the buffer assembly.

[0031] In actual use, initially, the screen 5 is closed, and the brush 303 is in close contact with the screen 5. When the screen 5 is opened, it slides upward, and the brush 303 cleans the dust adhering to the surface of the screen 5, keeping the screen 5 clean and allowing for smoother airflow. When the screen 5 is closed, it slides downward, and the brush 303 cleans the surface of the screen 5 again. When the screen 5 is opened, the brush 303 cleans the residue on the surface of the screen 5 again, further maintaining the cleanliness of the screen 5 surface.

[0032] Furthermore, the buffer assembly includes a baffle 7, the lower end of which is in movable contact with the lower end of the mesh 5. The baffle 7 is horizontally positioned below the dust collection box 3. A first sliding rod 701 and a second sliding rod 702 are vertically fixed to the upper end of the baffle 7. Both the first sliding rod 701 and the second sliding rod 702 pass through the bottom end of the dust collection box 3. The top end of the baffle 7 is elastically connected to the bottom end of the dust collection box 3. When the mesh 5 is opened, the mesh 5 slides upward rapidly under the action of elastic winding. The bottom end of the mesh 5 will generate a relatively large impact inertia on the dust collection box 3. At this time, the baffle 7 is driven upward by the bottom end of the mesh 5, and the impact inertia is buffered under the action of elasticity. A rack 703 is vertically fixed to one end of the first sliding rod 701 that extends into the dust collection box 3. The rack 703 meshes with the gear 305 for transmission. When the first sliding rod 701 slides into the dust collection box 3, the rack 703 drives the gear 305 to rotate.

[0033] Furthermore, a scraper bracket 304 for cleaning the brush 303 is fixed inside the dust collection box 3 on the side near the cleaning port 301. The scraper bracket 304 is in active contact with the brush 303. When the brush 303 rotates to contact the scraper bracket 304, the scraper bracket 304 shakes off the dust attached to the brush 303, so as to avoid the excessive dust attached to the brush 303 causing the brush 303 to have an unsatisfactory cleaning effect on the mesh 5.

[0034] In actual use, initially, the brush 303 is horizontal and in contact with the screen 5. When the screen 5 is opened, it slides upward rapidly under the elastic winding action, and the brush cleans the screen 5. When the bottom of the screen 5 moves to the top of the window frame 2, the bottom of the screen 5 will generate a relatively large impact inertia on the dust collection box 3. At this time, the baffle 7 approaches the dust collection box 3, and both the first sliding rod 701 and the second sliding rod 702 slide into the dust collection box 3. The first sliding rod 701 drives the rack 703 to move upward. Under the elastic action of the baffle 7 and the dust collection box 3, the impact inertia is absorbed. During the buffering process, the rack 703 drives the gear 305 to rotate, which in turn drives the rotating rod 302 to rotate. The brush 303 rotates downwards and comes into contact with the scraper frame 304. As the brush 303 rotates, the scraper frame 304 removes the dust adhering to the brush 303, preventing excessive dust from affecting the cleaning effect of the brush 303 on the screen 5. When the screen 5 is closed, the brush 303 will also clean the screen 5, removing any remaining dust and keeping the screen 5 clean.

[0035] Furthermore, a roller 4 is horizontally rotatably connected inside the fixing frame 1, and torsion springs 401 are fixed between both ends of the roller 4 and the inner wall of the fixing frame 1. The upper end of the mesh 5 is wound around the outside of the roller 4.

[0036] Furthermore, the inner ring of the window frame 2 is provided with a guide rail 201, and the left and right sides of the screen 5 are slidably engaged with the guide rail 201 respectively. The lower end of the screen 5 is fixed with a positioning plate 6, which is slidably engaged with the guide rail 201. The two sides of the positioning plate 6 near the interior are respectively fixed with positioning blocks 601, which are in movable contact with the bottom end of the baffle 7. When the roller 4 winds the screen 5, the positioning plate 6 moves upward quickly until the positioning block 601 contacts the bottom end of the baffle 7. The lower ends of the two sides of the window frame 2 near the interior are provided with positioning components, and the positioning blocks 601 are in movable contact with the positioning components. When the positioning plate 6 moves to the lower end of the window frame 2, the positioning blocks 601 engage with the positioning components to maintain the closed state of the screen 5. The side of the positioning plate 6 near the interior is fixed with a handle 602 for easy pulling of the screen 5.

[0037] Furthermore, the lower ends of both sides of the window frame 2 near the interior are horizontally provided with second sliding grooves 203. The positioning component includes a limiting block 9, which slides in conjunction with the second sliding groove 203. The limiting block 9 and the inner wall of the second sliding groove 203 are horizontally elastically connected. The upper end of the side of the limiting block 9 extending out of the second sliding groove 203 is inclined. A lever 901 for releasing the positioning plate 6 is fixed on the side of the limiting block 9 near the interior. The lever 901 passes through the window frame 2. When the lever 901 is moved to both sides of the window frame 2, the limiting block 9 releases the limiting block 601, and the screen 5 is opened.

[0038] In actual use, initially, the screen 5 is closed, the positioning plate 6 moves to the bottom of the window frame 2, and the positioning block 601 engages with the limiting block 9. When the screen 5 needs to be opened, the lever 901 is moved to both sides of the window frame 2, and the limiting block 9 slides into the second sliding groove 203. At this time, the limiting block 9 no longer limits the positioning block 601, and the screen 5 automatically rolls up under the elastic action of the torsion spring 401, and the screen 5 automatically opens. When the screen 5 needs to be closed, the handle 602 is pulled down, which moves the positioning plate 6 downward and the screen 5 downward until the positioning block 601 and the limiting block 9 come into contact. The limiting block 9 slides into the second sliding groove 203. When the positioning block 601 moves below the limiting block 9, the positioning plate 6 is located at the bottom of the window frame 2, and the limiting block 9 pops out of the second sliding groove 203, limiting the positioning block 601 and maintaining the closed state of the screen 5.

[0039] Furthermore, the upper sides of the window frame 2 near the interior are provided with a first sliding groove 202, which corresponds to the dust collection box 3. The installation component includes an installation block 8, which is a right-angle frame structure. The top of one right-angle side of the installation block 8 is slidably engaged with the first sliding groove 202. The installation block 8 is horizontally elastically connected to the inner wall of the first sliding groove 202. The two right-angle sides of the installation block 8 are movably engaged with the side of the dust collection box 3 near the interior.

[0040] In actual use, initially, the dust collection box 3 is installed below the fixing frame 10, and the mounting block 8 is snapped and fixed to the dust collection box 3. When the dust collection box 3 has too much dust, the mounting block 8 is moved to both sides of the window frame 2. At this time, the mounting block 8 slides to both sides of the first sliding rod 701 until the mounting block 8 releases the snapping and fixing of the dust collection box 3, and the dust collection box 3 is removed for cleaning. When it is necessary to install the dust collection box 3, the mounting block 8 is moved to both sides of the window frame 2 to place the dust collection box 3 below the fixing frame 1, and then the mounting block 8 is released so that the mounting block 8 snaps and fixes the dust collection box 3.

[0041] The working principle of this invention is as follows: In the initial state, the dust collection box is fixed below the fixing frame, the positioning plate moves to the bottom of the window frame, the positioning block and the limiting block are in a limiting engagement, the screen is in the closed state, and the brush is in close contact with the surface of the screen. When it is necessary to open the screen, the limiting blocks are moved to both sides of the window frame to release the limiting block of the positioning block. Under the action of the torsion spring, the drum winds the screen, and the screen slides upward. At this time, the brush cleans the dust attached to the surface of the screen. When the positioning block slides to the point of contact with the baffle, the baffle moves upward, driving the first sliding rod and the second sliding rod to move into the dust collection box. Due to the torque potential energy generated by the drum when winding the screen under the action of the torsion spring, the positioning plate will generate a large impact force on the dust collection box. Therefore, the baffle buffers this impact force. At the same time, the baffle moves closer to the dust collection box. When the dust box rotates, it drives the gears to rotate, causing the brush to rotate downwards. When the brush rotates to contact the scraper bracket, the scraper bracket can shake off the dust attached to the brush because the brush is flexible. The dust falls into the bottom of the dust collection box for collection. When the screen is closed, the positioning plate is pulled to slide to the bottom of the window frame. During this process, the brush also cleans the surface of the screen, cleaning the residue left by the brush during the opening process, further maintaining the cleanliness of the screen surface. When there is too much dust in the dust collection box, the mounting blocks are moved to both sides of the window frame to release the mounting blocks from the dust collection box. The dust collection box is then removed and cleaned. After cleaning, the mounting blocks are moved to both sides of the window frame to install the dust collection box under the fixing bracket. The mounting blocks are then released to re-lock the dust collection box.

Claims

1. A window screen that is easy to clean, comprising a fixing frame, the fixing frame being horizontally fixed to the upper end of a wall, a window frame being fixed below the fixing frame, a screen being slidably fitted inside the window frame, the upper end of the screen being elastically rolled inside the fixing frame, characterized in that, A dust collection box is movably installed on the side of the fixed frame near the room. The dust collection box contains a cleaning component for cleaning the screen. The cleaning component contains a scraper for cleaning the cleaning component. Below the cleaning component is a buffer component for buffering the impact force generated when the screen rolls upward. The upper end of the buffer component is connected to both sides of the cleaning component. The cleaning assembly includes a dust collection box, which is horizontally fixed to the side of the mounting frame near the interior via an installation component. The dust collection box has a cleaning port on the side near the screen. Partitions are fixed inside the dust collection box near both ends. A rotating rod is horizontally rotatably connected inside the dust collection box, passing through the partitions. A brush is fixed on the side of the rotating rod near the cleaning port, extending out of the cleaning port and contacting the screen. A gear is fixed at one end of the rotating rod extending out of the partitions, and the gear is connected to a buffer component. The buffer assembly includes a baffle, the lower end of which is in movable contact with the lower end of the mesh screen. The baffle is horizontally positioned below the dust collection box. A first sliding rod and a second sliding rod are vertically fixed to the upper end of the baffle, both of which pass through the bottom of the dust collection box. The top end of the baffle is elastically connected to the bottom end of the dust collection box. A rack is vertically fixed to one end of the first sliding rod that extends into the dust collection box, and the rack meshes with a gear for transmission. A scraper frame for cleaning the brush is fixed inside the dust collection box near the cleaning port, and the scraper frame is in movable contact with the brush.

2. The easy-to-clean window screen according to claim 1, characterized in that, A roller is horizontally rotatably connected inside the fixed frame. Torsion springs are fixed between both ends of the roller and the inner wall of the fixed frame. The upper end of the yarn is wound around the outside of the roller.

3. The easy-to-clean window screen according to claim 2, characterized in that, The window frame has a guide rail on its inner ring. The left and right sides of the screen are slidably engaged with the guide rail. A positioning plate is fixed at the lower end of the screen. The positioning plate is slidably engaged with the guide rail. Positioning blocks are fixed on the two sides of the positioning plate closest to the interior. The positioning blocks are in movable contact with the bottom end of the baffle. Positioning components are provided at the lower ends of the two sides of the window frame closest to the interior. The positioning blocks are in movable contact with the positioning components. A handle for pulling the screen is fixed on the side of the positioning plate closest to the interior.

4. A window screen that is easy to clean according to claim 3, characterized in that, The lower ends of both sides of the window frame near the interior are provided with second sliding grooves. The positioning component includes a limiting block, which slides in conjunction with the second sliding groove. The limiting block is horizontally elastically connected to the inner wall of the second sliding groove. The upper end of the limiting block extending out of the second sliding groove is a slope. A lever for releasing the positioning plate is fixed on the side of the limiting block near the interior. The lever passes through the window frame.

5. A window screen that is easy to clean according to claim 1, characterized in that, The upper sides of the window frame near the interior are provided with first sliding grooves, which correspond to the dust collection box. The installation component includes an installation block, which is a right-angle frame structure. The top of one right-angle side of the installation block is slidably engaged with the first sliding groove. The installation block is horizontally elastically connected to the inner wall of the first sliding groove. The two right-angle sides of the installation block are movably engaged with the side of the dust collection box near the interior.

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