Exhaust fan with filtering and purifying functions

Abstract

The utility model relates to an exhaust fan, belongs to the technical field of exhaust fans, and particularly relates to an exhaust fan with filtering and purifying functions, which comprises a casing, and the bottom of the casing is fixedly connected with a mounting seat. The L-shaped filter plate and the L-shaped permeable plate are fixedly installed through the connecting column and the circular groove and then placed into the groove, the connecting rod can be detached through the limiting groove, the connecting rod sequentially penetrates through the purification filter unit and is attached to the limiting block, the double-end motor is started, and the fan blades are driven to exhaust air. And meanwhile, a brush is driven to rotate and clean the L-shaped filter plate, dust adhering to the L-shaped filter plate is cleaned, impurities are prevented from blocking the L-shaped filter plate, the exhaust efficiency of the exhaust fan is conveniently improved, and the problem that when air is poured into a room, impurities sucked into the filter plate are not effectively cleaned through an existing exhaust fan, and the service life of the exhaust fan is prolonged is solved. And the problem that the exhaust efficiency of the exhaust fan is reduced due to the fact that the filter plate is easily blocked after a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust fans, in particular to an exhaust fan with filtering and purifying functions. Background Art

[0002] The fresh air system is an independent air treatment system consisting of an air supply system and an exhaust system. It is divided into two types: ducted fresh air system and ductless fresh air system. The ducted fresh air system consists of a fresh air fan and duct accessories. The fresh air fan purifies the outdoor air and introduces it into the room, and the indoor air is exhausted through the duct; the ductless fresh air system consists of a fresh air fan, which also purifies the outdoor air and introduces it into the room. After many attempts, the world's first heat exchange equipment that can filter air pollution was invented and manufactured, also known as the fresh air system. The exhaust fan plays a vital role in the fresh air system.

[0003] After searching the Chinese patent with publication number CN217979125U, an explosion-proof exhaust fan with a filtering function is disclosed, including a casing, an exhaust pipe is fixedly connected to one side of the casing, a motor is fixedly connected to the surface of the casing, one end of the motor is rotatably connected to a rotating shaft, one end of the rotating shaft passes through the side wall of the casing and is fixedly connected to an impeller, a first connecting pipe is fixedly connected to one side of the casing, a filtering mechanism is provided on one side of the first connecting pipe, the filtering mechanism includes a second connecting pipe, and the second connecting pipe is threadedly connected to the first connecting pipe.

[0004] Based on the above search and combined with the prior art, we found that:

[0005] When the existing exhaust fan pours air into the room, the impurities sucked into the filter plate are not effectively cleaned, which may easily cause the filter plate to be blocked for a long time, thereby reducing the exhaust efficiency of the exhaust fan. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes an exhaust fan with filtering and purification functions. The connecting rod can be disassembled through the limit groove, passed through the purification and filtering unit in sequence, and fitted with the limit block. Then, the connecting pipe and the exhaust pipe are fixed and installed through the sealing ring. Then, the double-head motor is started to drive the fan blades to exhaust air, and at the same time drive the brush to rotate and clean the L-shaped filter plate.

[0007] The technical solution to achieve the purpose of the utility model is: an exhaust fan with filtering and purifying function, comprising a casing, a mounting seat is fixedly connected to the bottom of the casing, a double-headed motor is installed on the top of the mounting seat, and one end of the double-headed motor is fixedly connected to a plurality of fan blades through a coupling, and also includes;

[0008] A purification and filtering mechanism, wherein the purification and filtering mechanism is located on the casing;

[0009] The purification and filtering mechanism includes a purification and filtering unit and a cleaning unit. The cleaning unit includes a rotating shaft fixedly connected to the other end of the double-headed motor through a coupling. A connecting rod is slidably sleeved on one end of the rotating shaft. A plurality of limit grooves are provided in the connecting rod. A plurality of limit blocks are fixedly connected on the circumferential outer wall of the rotating shaft. The limit grooves are adapted to the limit blocks. A groove is provided on the top of the casing. An L-shaped filter plate is installed in the groove. A movable hole is provided on the L-shaped filter plate. One end of the connecting rod passes through the movable hole and is fixedly connected to a brush.

[0010] In some embodiments, a limiting ring is installed on one side of the L-shaped filter plate, and a collection box is provided below the limiting ring.

[0011] In some embodiments, the purification filter unit includes an L-shaped air permeable plate attached to the groove, two circular grooves are opened on one side of the L-shaped air permeable plate, connecting columns are attached to the two circular grooves, one end of the two connecting columns is fixedly connected to the L-shaped filter plate, and an activated carbon plate is attached to the side where the L-shaped air permeable plate and the L-shaped filter plate are close to each other.

[0012] In some embodiments, the L-shaped air permeable plate and the activated carbon plate are both provided with a rotation hole, and a rotation shaft is connected to the two rotation holes for common rotation.

[0013] In some embodiments, two protrusions are fixedly connected to the top of the L-shaped air-permeable plate.

[0014] In some embodiments, a connecting pipe is fixedly connected to one side of the casing, and an exhaust pipe is installed on one side of the casing via a sealing ring.

[0015] Compared with the prior art, the present invention has the following significant advantages:

[0016] The utility model installs and fixes the L-shaped filter plate and the L-shaped air permeable plate through the connecting column and the circular groove, and then puts them into the groove. The connecting rod can be disassembled through the limit groove, passes through the purification filter unit in sequence, fits with the limit block, and then fixes and installs the connecting pipe and the exhaust pipe through the sealing ring. Then, the double-headed motor is started to drive the fan blades to exhaust air, and at the same time drives the brush to rotate and clean the L-shaped filter plate, so that the dust sticking on the L-shaped filter plate is cleaned, and the L-shaped filter plate is prevented from being blocked by impurities, which is convenient for improving the exhaust efficiency of the exhaust fan.

[0017] The invention solves the problem that the existing exhaust fan fails to effectively clean the impurities sucked onto the filter plate when pouring air into the room, which easily causes the filter plate to be blocked for a long time, thereby reducing the exhaust efficiency of the exhaust fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure provided by the utility model in one embodiment;

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional three-dimensional structure provided by the utility model in one embodiment;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of a limiting block and a limiting groove provided in one embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Casing; 2. Mounting base; 3. Double-headed motor; 4. Fan blades; 5. Rotating shaft; 6. Limit block; 7. Connecting rod; 8. Limit groove; 9. Connecting pipe; 10. L-shaped air permeable plate; 11. Exhaust pipe; 12. Circular groove; 13. L-shaped filter plate; 14. Connecting column; 15. Activated carbon plate; 16. Sealing ring; 17. Brush; 18. Limit ring; 19. Collection box; 20. Bump. DETAILED DESCRIPTION

[0024] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides an exhaust fan with filtering and purification functions through improvement. The technical solution of the utility model is:

[0026] like Figure 1-Figure 3 As shown, an exhaust fan with filtering and purifying function comprises a casing 1, a mounting base 2 is fixedly connected to the bottom of the casing 1, a double-headed motor 3 is installed on the top of the mounting base 2, one end of the double-headed motor 3 is fixedly connected to a plurality of fan blades 4 through a coupling, and also comprises: a purification and filtration mechanism, the purification and filtration mechanism is located on the casing 1; the purification and filtration mechanism comprises a purification and filtration unit and a cleaning unit, the cleaning unit comprises a rotating shaft 5 fixedly connected to the other end of the double-headed motor 3 through a coupling, one end of the rotating shaft 5 is slidably sleeved with a connecting rod 7, and the connecting rod 7 is connected to the double-headed motor 3. A plurality of limit grooves 8 are provided in the rod 7, a plurality of limit blocks 6 are fixedly connected to the outer circumferential wall of the rotating shaft 5, the limit grooves 8 are matched with the limit blocks 6, a groove is provided on the top of the casing 1, an L-shaped filter plate 13 is installed in the groove, a movable hole is provided on the L-shaped filter plate 13, one end of the connecting rod 7 passes through the movable hole and is fixedly connected with a brush 17; through the setting of the cleaning unit, it is convenient to clean the dust sticking on the L-shaped filter plate 13, prevent impurities from clogging the L-shaped filter plate 13, and facilitate improving the exhaust efficiency of the exhaust fan.

[0027] like Figure 2 As shown, in one embodiment, a limiting ring 18 is installed on one side of the L-shaped filter plate 13, and a collecting box 19 is provided below the limiting ring 18; through the arrangement of the limiting ring 18 and the collecting box 19, it is possible to facilitate the collection of cleaned impurities.

[0028] like Figure 1 and Figure 2 As shown, in one embodiment, the purification filter unit includes an L-shaped air permeable plate 10 attached to the groove, two circular grooves 12 are opened on one side of the L-shaped air permeable plate 10, and connecting columns 14 are attached to the two circular grooves 12. One end of the two connecting columns 14 is fixedly connected to an L-shaped filter plate 13, and the side of the L-shaped air permeable plate 10 and the L-shaped filter plate 13 that are close to each other is attached to an activated carbon plate 15; through the setting of the purification filter unit, it is achieved that the air can be purified easily.

[0029] like Figure 2 As shown, in one embodiment, both the L-shaped air permeable plate 10 and the activated carbon plate 15 are provided with rotation holes, and the two rotation holes are connected with a rotation shaft 5 for common rotation; by setting the rotation holes, the rotation shaft 5 can pass through the activated carbon plate 15.

[0030] like Figure 2 As shown, in one embodiment, two protrusions 20 are fixedly connected to the top of the L-shaped air-permeable plate 10; the arrangement of the protrusions 20 makes it easy to take the L-shaped air-permeable plate 10.

[0031] like Figure 1 As shown, in one embodiment, a connecting pipe 9 is fixedly connected to one side of the housing 1, and an exhaust pipe 11 is installed on one side of the housing 1 through a sealing ring 16; the exhaust pipe 11 is provided to achieve exhaust of air.

[0032] The specific working method is: when in use, the L-shaped filter plate 13 and the L-shaped air permeable plate 10 are installed and fixed through the connecting column 14 and the circular groove 12, and then placed in the groove, the connecting rod 7 can be disassembled through the limit groove 8, and pass through the purification filter unit in turn, fit with the limit block 6, and then the connecting pipe 9 and the exhaust pipe 11 are fixed and installed through the sealing ring 16, and then the double-headed motor 3 is started to drive the fan blades 4 to exhaust air, and at the same time drive the brush 17 to rotate and clean the L-shaped filter plate 13, so as to realize the cleaning of the dust sticking on the L-shaped filter plate 13, prevent impurities from clogging the L-shaped filter plate 13, and facilitate to improve the exhaust efficiency of the exhaust fan.

[0033] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. An exhaust fan with filtering and purifying functions, comprising a housing (1), a mounting base (2) fixedly connected to the bottom of the housing (1), a double-headed motor (3) mounted on the top of the mounting base (2), one end of the double-headed motor (3) fixedly connected to a plurality of blades (4) via a coupling, characterized in that: Also includes; A purification and filtering mechanism, wherein the purification and filtering mechanism is located on the housing (1); The purification and filtering mechanism comprises a purification and filtering unit and a cleaning unit. The cleaning unit comprises a rotating shaft (5) fixedly connected to the other end of the double-headed motor (3) through a coupling. One end of the rotating shaft (5) is slidably sleeved with a connecting rod (7). A plurality of limiting grooves (8) are provided in the connecting rod (7). A plurality of limiting blocks (6) are fixedly connected to the circumferential outer wall of the rotating shaft (5). The limiting grooves (8) are matched with the limiting blocks (6). A groove is provided on the top of the housing (1). An L-shaped filter plate (13) is installed in the groove. A movable hole is provided on the L-shaped filter plate (13). One end of the connecting rod (7) passes through the movable hole and is fixedly connected to a brush (17).

2. The exhaust fan with filtering and purifying function according to claim 1, characterized in that: A limiting ring (18) is installed on one side of the L-shaped filter plate (13), and a collecting box (19) is provided below the limiting ring (18).

3. The exhaust fan with filtering and purifying function according to claim 1, characterized in that: The purification filter unit comprises an L-shaped air permeable plate (10) attached to the groove, two circular grooves (12) are provided on one side of the L-shaped air permeable plate (10), a connecting column (14) is attached to the two circular grooves (12), one end of the two connecting columns (14) is fixedly connected to the L-shaped filter plate (13), and an activated carbon plate (15) is attached to the side of the L-shaped air permeable plate (10) and the L-shaped filter plate (13) close to each other.

4. The exhaust fan with filtering and purifying function according to claim 3, characterized in that: The L-shaped air permeable plate (10) and the activated carbon plate (15) are both provided with a rotation hole, and a rotation shaft (5) is rotatably connected in the two rotation holes.

5. The exhaust fan with filtering and purifying function according to claim 3, characterized in that: Two protrusions (20) are fixedly connected to the top of the L-shaped air-permeable plate (10).

6. The exhaust fan with filtering and purifying function according to claim 1, characterized in that: A connecting pipe (9) is fixedly connected to one side of the casing (1), and an exhaust pipe (11) is installed on one side of the casing (1) via a sealing ring (16).

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