A kitchen hood with a filter screen that is easy to remove

Abstract

The utility model discloses a convenient to detach filter screen's range hood relates to range hood technical field, this convenient to detach filter screen's range hood, including range hood body, the inner wall fixedly connected with fan of range hood body, the inner wall fixedly connected with fan cover of range hood body, the surface of fan's through -going fan cover is fixedly connected with the inside of fan cover, the output fixedly connected with the impeller of fan, the inner wall fixedly connected with the positioning frame of range hood body, be provided with filter screen in the inside of positioning frame, the inner wall fixedly connected with second magnet of positioning frame, the surface fixedly connected with first magnet of filter screen. This convenient to detach filter screen's range hood, when using, operator only needs to pull handle to complete to the removal of filter screen, and the operation is simple and convenient, and utilizes the magnetic force between first magnet and second magnet, the restriction of the clamping block of the clamping column and the locking of the threaded rod, realizes the stability of filter screen fixation.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a range hood with a filter screen that is easy to disassemble. Background Technology

[0002] A range hood, also known as a cooking hood, is a kitchen appliance used to purify the kitchen environment. Installed above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors to purify the kitchen air.

[0003] Most range hood filter components on the market are fixed to the smoke collection hood with screws. Currently, one end of the filter is fastened to the bottom of the smoke collection box by a clip and the other end by a screw. Therefore, when removing or installing the filter (for example, when the user needs to clean the filter), a screwdriver is required to tighten the screws, which is inconvenient. At the same time, during the disassembly process, the filter needs to be lifted to prevent it from falling suddenly and causing injury or damage to the operator and the stove. Therefore, a range hood with a filter that is easy to remove is proposed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a range hood with a convenient filter screen that can solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a range hood with a conveniently detachable filter, comprising a range hood body, a fan fixedly connected to the inner wall of the range hood body, a fan cover fixedly connected to the inner wall of the range hood body, a surface of the fan penetrating the fan cover and fixedly connected to the inside of the fan cover, an impeller fixedly connected to the output end of the fan, a positioning frame fixedly connected to the inner wall of the range hood body, a filter screen disposed inside the positioning frame, a second magnet fixedly connected to the inner wall of the positioning frame, and a first magnet fixedly connected to the surface of the filter screen, the opposite sides of the first magnet and the second magnet attracting each other.

[0006] Preferably, two fixing blocks are fixedly connected to both sides of the inner wall of the positioning frame, and locking posts are slidably connected to the opposite sides of the two fixing blocks. The opposite ends of the two locking posts are hemispherical, and springs are fixedly connected to the opposite ends of the two locking posts. The end of the spring away from the locking post is fixedly connected to the inside of the fixing block. Locking blocks are fixedly connected to both sides of the filter screen, and grooves matching the hemispherical ends of the locking posts are opened on both sides of the locking blocks.

[0007] Preferably, a first rack is fixedly connected to both sides of the filter screen. The first rack passes through the surface of the positioning frame and is slidably connected to the inside of the positioning frame. A rotating shaft is rotatably connected to the inner wall of the range hood body. A first gear is fixedly connected to the surface of the rotating shaft. The first gear and the first rack mesh with each other. A first swing rod is fixedly connected to the surface of the rotating shaft. A second swing rod is slidably connected to the surface of the first swing rod. A T-shaped rod is slidably connected to the inner wall of the range hood body. The surface of the T-shaped rod is rotatably connected to the end of the second swing rod away from the first swing rod.

[0008] Preferably, a fixing box is fixedly connected to the inner wall of the range hood body, the upper end of the T-shaped rod is slidably connected to the inside of the fixing box, and a sealing plate is provided on the side of the fixing box near the fan cover.

[0009] Preferably, the surface of the fixing box is fixedly connected to two fixing rods, which slide through the surface of the sealing plate and are slidably connected to the interior of the sealing plate.

[0010] Preferably, the fixed box has a threaded rod protruding from the surface of the fixed box and is rotatably connected inside. The threaded rod passes through the surface of the sealing plate and is threadedly connected to the inside of the sealing plate. A second gear is fixedly connected to the surface of the threaded rod inside the fixed box. A second rack that is slidably connected to the upper end of the T-shaped rod is fixedly connected to the inside of the fixed box. The surface of the second rack meshes with the surface of the second gear.

[0011] Preferably, the output end of the fan is conical, a limiting sleeve is fixedly connected to the surface of the sealing plate, the limiting sleeve is fitted onto the surface of the threaded rod, the inner wall of the limiting sleeve is also conical, and a rubber pad is fixedly connected to the inner wall of the limiting sleeve.

[0012] Preferably, a handle is fixedly connected to the surface of the filter screen.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The range hood with easy-to-disassemble filter screen can be easily removed by the operator by pulling the handle. The operation is simple and convenient. At the same time, the magnetic force between the first magnet and the second magnet, the restriction of the locking block by the locking post and the locking of the threaded rod are used to achieve the stability of the filter screen fixation.

[0014] (2) The range hood with easy-to-remove filter screen can block the fan cover while removing the filter screen, thereby blocking the air inlet and preventing the suction force generated by the fan from acting on the outside. This reduces the safety hazards for the operator when cleaning and maintaining the range hood and improves the effectiveness of the device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural schematic diagram of a range hood with a conveniently removable filter screen according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the range hood body of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the fixing block of this utility model; Figure 5 This is a schematic diagram of the internal structure of the fixing box of this utility model.

[0016] Reference numerals in the attached drawings: 1. Range hood body; 2. Filter screen; 3. Handle; 4. Positioning frame; 5. First magnet; 6. Second magnet; 7. First rack; 8. Rotating shaft; 9. First gear; 10. First swing rod; 11. Second swing rod; 12. T-shaped rod; 13. Fan; 14. Threaded rod; 15. Restricting sleeve; 16. Fixing rod; 17. Sealing plate; 18. Fixing box; 19. Fan cover; 20. Locking block; 21. Fixing block; 22. Spring; 23. Locking post; 24. Second gear; 25. Second rack. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a range hood with a convenient filter screen removal, including a range hood body 1, a fan 13 fixedly connected to the inner wall of the range hood body 1, a fan cover 19 fixedly connected to the inner wall of the range hood body 1, the surface of the fan 13 penetrating the fan cover 19 fixedly connected to the inside of the fan cover 19, an impeller fixedly connected to the output end of the fan 13 for generating wind power to extract oil fumes, the output end of the fan 13 is conical, a positioning frame 4 fixedly connected to the inner wall of the range hood body 1 for positioning the filter screen 2, the filter screen 2 is disposed inside the positioning frame 4 for filtering oil fumes, a second magnet 6 fixedly connected to the inner wall of the positioning frame 4, a first magnet 5 fixedly connected to the surface of the filter screen 2, the opposite sides of the first magnet 5 and the second magnet 6 attract each other, thereby utilizing the magnetic force between the first magnet 5 and the second magnet 6 to achieve the initial installation of the filter screen 2.

[0019] Two fixing blocks 21 are fixedly connected to both sides of the inner wall of the positioning frame 4. The opposite sides of the two fixing blocks 21 are slidably connected to the locking posts 23. The opposite ends of the two locking posts 23 are hemispherical. The opposite ends of the two locking posts 23 are fixedly connected to the springs 22. The end of the spring 22 away from the locking post 23 is fixedly connected to the inside of the fixing block 21 to reset the locking post 23. The two sides of the filter screen 2 are fixedly connected to the locking blocks 20. The two sides of the locking blocks 20 are provided with grooves that match the hemispherical ends of the locking posts 23, so that the lower end of the filter screen 2 can be installed through the cooperation of the grooves and the locking posts 23.

[0020] Both sides of the filter screen 2 are fixedly connected to a first rack 7. The first rack 7 passes through the surface of the positioning frame 4 and is slidably connected to the inside of the positioning frame 4. A rotating shaft 8 is rotatably connected to the inner wall of the range hood body 1. A first gear 9 is fixedly connected to the surface of the rotating shaft 8. The first gear 9 and the first rack 7 are meshed with each other. A first swing rod 10 is fixedly connected to the surface of the rotating shaft 8. A second swing rod 11 is slidably connected to the surface of the first swing rod 10. A T-shaped rod 12 is slidably connected to the inner wall of the range hood body 1. The surface of the T-shaped rod 12 is connected to the first rack 7. The end of the second swing rod 11 away from the first swing rod 10 is rotatably connected. A fixing box 18 is fixedly connected to the inner wall of the range hood body 1. The upper end of the T-shaped rod 12 is slidably connected to the inside of the fixing box 18. A sealing plate 17 is provided on the side of the fixing box 18 near the fan cover 19 to seal the fan cover 19 and isolate the fan 13. This prevents the fan 13 from suddenly starting when the filter screen 2 is removed, causing the range hood to generate suction and suck up the operator's hair or clothing, which could pose a certain safety hazard.

[0021] Two fixing rods 16 are fixedly connected to the surface of the fixing box 18. The fixing rods 16 pass through the surface of the sealing plate 17 and slide inside the sealing plate 17 to limit the movement trajectory of the fixing rods 16, so as to prevent the sealing plate 17 from rotating with the rotation of the threaded rod 14 and ensure the smooth operation of the device.

[0022] The fixed box 18 has a threaded rod 14 protruding from its surface and rotatably connected inside. The threaded rod 14 passes through the surface of the sealing plate 17 and is threadedly connected to the inside of the sealing plate 17. The threaded rod 14 is fixedly connected to a second gear 24 on its surface inside the fixed box 18. The upper end of the T-shaped rod 12 is fixedly connected to a second rack 25 that is slidably connected to the inside of the fixed box 18. The surface of the second rack 25 meshes with the surface of the second gear 24, so that the threaded rod 14 can be rotated by the lifting and lowering of the T-shaped rod 12.

[0023] A limiting sleeve 15 is fixedly connected to the surface of the sealing plate 17. The limiting sleeve 15 is fitted onto the surface of the threaded rod 14. The inner wall of the limiting sleeve 15 is also conical, and a rubber pad is fixedly connected to the inner wall of the limiting sleeve 15 to cover the output end of the fan 13, thereby increasing the friction between the fan 13 and the limiting sleeve 15. This prevents the output end of the fan 13 from rotating during the disassembly of the filter screen 2, which would cause oil droplets in the fan cover 19 to spill out, thus causing oil droplets to fall onto the operator's clothes or onto the stove.

[0024] A handle 3 is fixedly connected to the surface of the filter screen 2 to facilitate the operator to pull out the filter screen 2.

[0025] Working principle: When removing the filter screen 2, the operator can pull the filter screen 2 using the handle 3, thereby separating the first magnet 5 from the second magnet 6. Simultaneously, the groove of the drive block 20 presses and pushes the hemispherical end of the locking post 23, causing the locking post 23 to retract into the fixing block 21. This compresses the spring 22, preventing the locking post 23 from being locked into the groove and releasing the restriction on the drive block 20. At the same time, the movement of the filter screen 2 drives the first rack 7 to move, thereby driving the first gear 9 and the rotating shaft 8 to rotate, and driving the first swing rod 10. The second swing rod 11 rotates, thereby raising the T-shaped rod 12. During this process, the first swing rod 10 and the second swing rod 11 retract accordingly. The rise of the T-shaped rod 12 drives the second rack 25 to mesh with the second gear 24, causing the threaded rod 14 to rotate. This causes the sealing plate 17 to move closer to the fan cover 19, thereby sealing the fan cover 19. At the same time, the limiting sleeve 15 is placed on the output end of the fan 13 to prevent the fan 13 from rotating and to avoid oil dripping.

[0026] When installing the filter screen 2, it is inserted into the positioning frame 4, which drives the threaded rod 14 to reverse, so that the sealing plate 17 no longer blocks the fan cover 19. At this time, when the fan 13 starts, it can smoothly extract the oil fumes. At the same time, the threaded rod 14, with its self-locking thread, can prevent the sealing plate 17 from moving on its own, and also prevent the T-shaped rod 12 from moving on its own, thereby preventing the rotation of the first swing rod 10 and the second swing rod 11. This effectively locks the filter screen 2 in place, preventing it from falling off under the action of gravity and ensuring the stability of the filter screen 2 installation.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A range hood with a conveniently removable filter screen, comprising a range hood body (1), characterized in that: A fan (13) is fixedly connected to the inner wall of the range hood body (1), and a fan cover (19) is fixedly connected to the inner wall of the range hood body (1). The surface of the fan (13) penetrating the fan cover (19) is fixedly connected to the inside of the fan cover (19). An impeller is fixedly connected to the output end of the fan (13). A positioning frame (4) is fixedly connected to the inner wall of the range hood body (1). A filter screen (2) is provided inside the positioning frame (4). A second magnet (6) is fixedly connected to the inner wall of the positioning frame (4). A first magnet (5) is fixedly connected to the surface of the filter screen (2). The opposite sides of the first magnet (5) and the second magnet (6) attract each other.

2. The range hood with a conveniently detachable filter screen according to claim 1, characterized in that: Two fixing blocks (21) are fixedly connected to both sides of the inner wall of the positioning frame (4). The two fixing blocks (21) are slidably connected to the opposite sides of the two fixing blocks (21). The opposite ends of the two fixing blocks (23) are hemispherical. The opposite ends of the two fixing blocks (23) are fixedly connected to springs (22). The end of the spring (22) away from the fixing block (23) is fixedly connected to the inside of the fixing block (21). The filter screen (2) is fixedly connected to both sides of the filter block (2). The two sides of the filter block (20) are provided with grooves that match the hemispherical ends of the fixing blocks (23).

3. A range hood with a conveniently detachable filter screen according to claim 2, characterized in that: Both sides of the filter screen (2) are fixedly connected to a first rack (7). The first rack (7) passes through the surface of the positioning frame (4) and is slidably connected to the inside of the positioning frame (4). The inner wall of the range hood body (1) is rotatably connected to a rotating shaft (8). The surface of the rotating shaft (8) is fixedly connected to a first gear (9). The first gear (9) and the first rack (7) mesh with each other. The surface of the rotating shaft (8) is fixedly connected to a first swing rod (10). The surface of the first swing rod (10) is slidably connected to a second swing rod (11). The inner wall of the range hood body (1) is slidably connected to a T-shaped rod (12). The surface of the T-shaped rod (12) is rotatably connected to the end of the second swing rod (11) away from the first swing rod (10).

4. A hood with filter screen according to claim 3, wherein: The inner wall of the range hood body (1) is fixedly connected to a fixing box (18), the upper end of the T-shaped rod (12) is slidably connected to the inside of the fixing box (18), and a sealing plate (17) is provided on the side of the fixing box (18) near the fan cover (19).

5. A hood with filter screen according to claim 4, wherein: Two fixing rods (16) are fixedly connected to the surface of the fixing box (18). The fixing rods (16) penetrate the surface of the sealing plate (17) and are slidably connected to the inside of the sealing plate (17).

6. A range hood with a conveniently removable filter screen according to claim 5, characterized in that: The fixed box (18) is rotatably connected to a threaded rod (14) protruding from the surface of the fixed box (18). The threaded rod (14) passes through the surface of the sealing plate (17) and is threadedly connected to the inside of the sealing plate (17). The surface of the threaded rod (14) located inside the fixed box (18) is fixedly connected to a second gear (24). The upper end of the T-shaped rod (12) is fixedly connected to a second rack (25) that is slidably connected to the inside of the fixed box (18). The surface of the second rack (25) meshes with the surface of the second gear (24).

7. A range hood with a conveniently detachable filter screen according to claim 6, characterized in that: The output end of the fan (13) is conical, and a limiting sleeve (15) is fixedly connected to the surface of the sealing plate (17). The limiting sleeve (15) is fitted onto the surface of the threaded rod (14). The inner wall of the limiting sleeve (15) is also conical, and a rubber pad is fixedly connected to the inner wall of the limiting sleeve (15).

8. A hood with filter screen according to claim 7, characterized in that: A handle (3) is fixedly connected to the surface of the filter screen (2).

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