A window sill bidirectional fan with good filtration

Abstract

This invention discloses a window sill-type bidirectional fan with good filtration performance, relating to the field of indoor ventilation technology. The invention includes a housing, with a mounting groove in the middle of the front side of the housing. Ventilation slots are symmetrically formed on both sides of the mounting groove. A drive assembly is housed inside the mounting groove, and a suction assembly is housed inside each ventilation slot. A filter assembly is located behind the suction assembly inside the housing. An air guide window is installed on the front side of each ventilation slot. Delivery pipes are symmetrically fixed to the bottom rear side of the housing, and these delivery pipes are respectively connected to the ventilation slots on the left and right sides. This invention enables simultaneous air intake and exhaust, has a simple and effective structure, improves ventilation efficiency, facilitates the diffusion of fresh air indoors, improves air quality, avoids the concentrated accumulation of dust on one side of the filter plate during filtration, thus improving filtration efficiency and extending the service life of the filter plate.

Description

Technical Field

[0001] This invention relates to the field of indoor ventilation technology, and specifically to a window sill type bidirectional fan with good filtration performance. Background Technology

[0002] With the continuous development of urban architecture, high-rise buildings are springing up everywhere, and a large number of enclosed glass curtain walls are used. As a result, the ventilation effect of natural wind in urban buildings is not good. In order to improve indoor air quality and ensure ventilation, window sill bidirectional fans have emerged in the field of indoor appliances. They can exhaust polluted air to the outside and deliver fresh air to the inside, increase air circulation, and improve indoor air quality.

[0003] However, existing window sill type bidirectional fans still have the following drawbacks during use:

[0004] 1. Existing bidirectional fans achieve intermittent air intake and exhaust through circuit control, which is complex in structure and has poor ventilation efficiency. In addition, they cannot perform sweeping air intake and exhaust, which is not conducive to the diffusion of fresh air indoors and reduces the effect of improving air quality.

[0005] 2. In existing bidirectional fans, the filter plate is fixed when filtering air. Not only does the filtration effect need to be improved, but during the filtration process, because the air direction remains unchanged, dust will accumulate on one side of the filter plate, which will reduce the filtration effect and service life of the filter plate. Summary of the Invention

[0006] The purpose of this invention is to address the problems of intermittent air intake and exhaust achieved through circuit control, which result in complex structures, low air exchange efficiency, inability to perform sweeping air intake and exhaust, hindering the diffusion of fresh air indoors and reducing the improvement of air quality, and the tendency for dust to accumulate on one side of the filter plate, reducing the filtration effect and lifespan. This invention provides a window sill type bidirectional fan with good filtration performance.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0008] A window sill type bidirectional fan with good filtration includes a housing. A mounting groove is provided in the middle of the front side of the housing. Ventilation grooves are symmetrically provided on the left and right sides of the mounting groove. A drive assembly is provided inside the mounting groove. A suction assembly is provided inside the ventilation groove. A filter assembly is provided behind the suction assembly inside the housing. An air guide window is installed on the front side of the ventilation groove. A delivery pipe is symmetrically fixed on the bottom of the rear side of the housing. The delivery pipes are respectively connected to the ventilation grooves on the left and right sides.

[0009] The driving component is used to drive the suction component to perform horizontal air input and output, and at the same time, the driving component is also used to drive the filter component to perform flip-up air filtration.

[0010] Furthermore, the drive assembly includes limiting slide grooves. The left and right sides of the mounting groove are symmetrically fixedly installed with limiting slide grooves. A mounting frame is slidably connected between the limiting slide grooves at the top and bottom. A fixed frame is slidably connected to the inner side of the mounting frame at the left and right. A motor is fixedly installed inside the fixed frame. A rotating shaft is driven to the rear of the motor to drive the rotating shaft to rotate. Two first pulleys are fixedly installed around the rotating shaft, arranged in a front-to-back pattern around the rotating shaft. A gear is fixedly installed at the rear end of the rotating shaft. A gear ring groove is provided on the rear side of the mounting groove inside the housing.

[0011] Furthermore, the gear groove is located on the outside of the gear, and the gear meshes with the inside of the gear groove. Therefore, during the rotation of the gear driven by the rotating shaft, the gear can rotate around the gear groove.

[0012] Furthermore, the suction assembly includes connecting columns. Connecting columns are symmetrically fixedly installed inside the ventilation slots on both the left and right sides. Fans are slidably connected to the ventilation slots through the connecting columns. Fan blades are rotatably connected to the center of the inner side of the fan. Air intake and exhaust are achieved by rotating the fan blades. A second pulley is fixedly installed at the rear end of each fan blade. A connecting plate is fixedly installed on the adjacent side of each fan on both the left and right sides. An elastic telescopic rod is provided between the connecting plate and the left and right ends of the fixed frame. One end of the elastic telescopic rod is fixedly installed to the fixed frame, and the other end is slidably connected to the connecting plate in a limited manner, so that the elastic telescopic rod can slide up and down at the connecting plate, and can also drive the connecting plate to move left and right.

[0013] Furthermore, the spiral directions of the inner fan blades on the left and right sides are opposite, so when the fan blades on the left and right sides rotate in the same direction, they can respectively carry in and out air.

[0014] Furthermore, belts are connected to both the first pulley and the second pulleys on the left and right sides, so that when the rotating shaft drives the first pulley to rotate, the second pulleys on the left and right sides can be driven to rotate synchronously in the same direction through the belts.

[0015] Furthermore, the elastic telescopic rod passes through the partition between the mounting groove and the ventilation groove, as well as the limiting slide groove and the mounting frame. A groove is provided at the penetration point of the partition between the mounting groove and the ventilation groove and the limiting slide groove to limit the upper and lower sliding of the elastic telescopic rod, so that the elastic telescopic rod can slide up and down with the mounting frame.

[0016] Furthermore, the filter assembly includes rectangular frames. Two rectangular frames are movably connected to the rear side of the fan inside the ventilation slots on both the left and right sides. The two rectangular frames are distributed front to back, and filter plates are uniformly connected vertically between the two rectangular frames. The two sides of the filter plates are hinged to the interior of the front and rear rectangular frames respectively. An mounting plate is fixedly installed between the left and right rectangular frames on the front side. The mounting plate is slidably connected vertically inside the housing. Limiting posts are fixedly installed at the middle of the ends of the left and right rectangular frames that are far apart from each other. Rotating rods are rotatably connected to the left sidewall of the left ventilation slot and the right sidewall of the right ventilation slot.

[0017] Furthermore, the rotating shaft passes through the middle of the mounting plate, and the middle of the mounting plate has a groove for limiting the left and right sliding of the rotating shaft. Therefore, when the rotating shaft rotates along the toothed groove, it can drive the mounting plate to move up and down.

[0018] Furthermore, the rotating rod has symmetrical waist holes on both sides, and the limiting posts of the rectangular frame sides distributed at the front and rear extend into the waist holes on both sides of the rotating rod, and are limited and slidably connected within the waist holes. The front rectangular frame is limited and slidably connected vertically within the ventilation groove, and the rear rectangular frame is slidably connected within the ventilation groove. The rear rectangular frame can slide back and forth and vertically within the ventilation groove. Therefore, when the mounting plate drives the front rectangular frame to move vertically, the rear rectangular frame can be driven to move vertically in the opposite direction through the cooperation of the limiting posts and the rotating rod.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention, through the coordinated design of the drive component and the suction component, can achieve synchronous air intake and exhaust through the control of a motor alone. The structure is simple and effective, improving the efficiency of air exchange. At the same time, it can achieve sweeping air intake and exhaust, which is conducive to the diffusion of fresh air in the room and improves the air quality.

[0021] 2. This invention, through the coordinated design of the drive component and the filter component, utilizes the staggered reciprocating movement of the drive rectangular frame during the air intake and exhaust process of the driven fan to tilt and flip the filter plate, so that different surfaces on the filter plate interact with the air intake direction. This avoids the concentrated accumulation of dust on one side of the filter plate during the filtration process, which is beneficial to improving the filtration effect and the service life of the filter plate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention. Figure 1 ;

[0025] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the present invention. Figure 2 ;

[0026] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the present invention. Figure 3 ;

[0027] Figure 6 This is a three-dimensional structural diagram of the driving component, suction component and filtering component of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the driving component and suction component of the present invention. Figure 1 ;

[0029] Figure 8 This is a three-dimensional structural diagram of the driving component and suction component of the present invention. Figure 2 ;

[0030] Figure 9 This is a partial three-dimensional structural diagram of the driving component and the suction component of the present invention;

[0031] Figure 10 This is a schematic diagram of the three-dimensional structure of the driving component and the filtering component of the present invention. Figure 1 ;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure of the driving component and the filtering component of the present invention. Figure 2 .

[0033] Reference numerals: 1. Housing; 2. Mounting slot; 3. Ventilation slot; 4. Drive assembly; 41. Limiting slide; 42. Mounting frame; 43. Fixing frame; 44. Motor; 45. Rotating shaft; 46. First pulley; 47. Gear; 48. Gear ring groove; 5. Suction assembly; 51. Connecting column; 52. Fan; 53. Fan blade; 54. Second pulley; 55. Connecting plate; 56. Elastic telescopic rod; 6. Filter assembly; 61. Rectangular frame; 62. Filter plate; 63. Mounting plate; 64. Limiting column; 65. Rotating rod; 7. Air guide window; 8. Conveying pipe; 9. Belt. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] A preferred embodiment of the present invention, a window sill type bidirectional fan with good filtration, will be described in detail below, such as... Figures 1-5 As shown, a window sill type bidirectional fan with good filtration includes a housing 1. A mounting groove 2 is provided in the middle of the front side of the housing 1. Ventilation grooves 3 are symmetrically provided on the left and right sides of the mounting groove 2 on the front side of the housing 1. A drive assembly 4 is provided inside the mounting groove 2. A suction assembly 5 is provided inside the ventilation groove 3. A filter assembly 6 is provided behind the suction assembly 5 inside the housing 1. An air guide window 7 is installed on the front side of the ventilation groove 3. A delivery pipe 8 is symmetrically fixedly installed on the left and right sides of the bottom of the rear side of the housing 1. The delivery pipe 8 is connected to the ventilation grooves 3 on the left and right sides respectively.

[0036] Among them, the drive component 4 is used to drive the suction component 5 to perform horizontal air input and discharge, and at the same time, the drive component 4 is also used to drive the filter component 6 to perform flip-up air filtration.

[0037] Furthermore, such as Figure 4 , Figures 6-9 As shown, the drive assembly 4 includes a limiting slide groove 41. The limiting slide groove 41 is symmetrically fixedly installed on the left and right sides inside the mounting groove 2. The limiting slide groove 41 is slidably connected to the upper and lower limits between the limiting slide grooves 41. The mounting frame 42 is slidably connected to the inner side of the mounting frame 42 to the left and right limits. The motor 44 is fixedly installed on the inner side of the fixed frame 43. The rear side of the motor 44 is connected to a rotating shaft 45 for driving the rotating shaft 45 to rotate.

[0038] Two first pulleys 46 are fixedly installed on the periphery of the rotating shaft 45. The two first pulleys 46 are arranged in a front-to-back pattern on the periphery of the rotating shaft 45. A gear 47 is fixedly installed at the rear end of the rotating shaft 45. A gear groove 48 is provided on the rear side of the mounting groove 2 inside the housing 1.

[0039] The gear groove 48 is located on the outside of the gear 47, and the gear 47 meshes with the inside of the gear groove 48. Therefore, during the rotation of the gear 47 driven by the rotating shaft 45, the gear 47 can rotate around the gear groove 48.

[0040] The suction assembly 5 includes a connecting column 51. The connecting columns 51 are symmetrically fixedly installed inside the ventilation slots 3 on both the left and right sides. The fans 52 are slidably connected to the ventilation slots 3 through the connecting columns 51. The fan blades 53 are rotatably connected to the center of the inner side of the fan 52. The fan blades 53 rotate to achieve air intake and exhaust. The spiral directions of the fan blades 53 inside the left and right fans 52 are opposite. Therefore, when the fan blades 53 on both sides rotate in the same direction, they can respectively carry out air intake and exhaust.

[0041] The rear end of each fan blade 53 is fixedly equipped with a second pulley 54. Each side of the fan 52 on both the left and right sides is fixedly equipped with a connecting plate 55. An elastic telescopic rod 56 is provided between the connecting plate 55 and the left and right ends of the fixed frame 43. One end of the elastic telescopic rod 56 is fixedly installed with the fixed frame 43, and the other end is connected to the connecting plate 55 in a limited vertical sliding connection, so that the elastic telescopic rod 56 can slide up and down at the connecting plate 55, and can also drive the connecting plate 55 to move left and right.

[0042] The first pulley 46 is connected to the second pulleys 54 on both sides by belts 9, so that when the rotating shaft 45 drives the first pulley 46 to rotate, the second pulleys 54 on both sides can be driven to rotate synchronously in the same direction through the belts 9.

[0043] The elastic telescopic rod 56 passes through the partition between the mounting groove 2 and the ventilation groove 3, as well as the limiting slide groove 41 and the mounting frame 42. The partition between the mounting groove 2 and the ventilation groove 3 and the penetration of the limiting slide groove 41 are provided with grooves that limit the upper and lower sliding of the elastic telescopic rod 56, so that the elastic telescopic rod 56 can slide up and down with the mounting frame 42.

[0044] Furthermore, such as Figure 6 , Figures 10-11 As shown, the filter assembly 6 includes a rectangular frame 61. Two rectangular frames 61 are movably connected to the rear side of the fan 52 inside the ventilation slots 3 on both the left and right sides. The two rectangular frames 61 are distributed front and back, and filter plates 62 are evenly connected vertically between the two rectangular frames 61. The two sides of the filter plates 62 are respectively hinged to the interior of the rectangular frames 61 on the front and back sides. An mounting plate 63 is fixedly installed between the left and right rectangular frames 61 on the front side. A rotating shaft 45 passes through the middle of the mounting plate 63, and a groove is opened in the middle of the mounting plate 63 to limit the sliding of the rotating shaft 45 left and right. Therefore, when the rotating shaft 45 rotates along the gear groove 48, it can drive the mounting plate 63 to move up and down.

[0045] The mounting plate 63 is slidably connected to the upper and lower limits inside the housing 1. Limiting posts 64 are fixedly installed at the middle of the left and right rectangular frames 61 at opposite ends. The left side wall of the left ventilation slot 3 and the right side wall of the right ventilation slot 3 are both rotatably connected with limiting rods 65.

[0046] The rotating rod 65 has symmetrical waist holes on both sides. The limiting posts 64 at the sides of the rectangular frames 61 distributed at the front and rear extend into the waist holes on both sides of the rotating rod 65 and are limited and slidably connected within the waist holes. The front rectangular frame 61 is limited and slidably connected vertically within the ventilation groove 3, and the rear rectangular frame 61 is slidably connected within the ventilation groove 3. The rear rectangular frame 61 can slide back and forth and vertically within the ventilation groove 3. Therefore, when the mounting plate 63 drives the front rectangular frame 61 to move vertically, the rear rectangular frame 61 can be driven to move vertically in the opposite direction through the cooperation of the limiting posts 64 and the rotating rod 65.

[0047] The working principle of this invention is:

[0048] In use, the motor 44 drives the rotating shaft 45 to rotate, which in turn drives the first pulley 46 to rotate. During the rotation of the first pulley 46, the belt 9 drives the second pulleys 54 on both sides to rotate synchronously in the same direction, which in turn drives the fan blades 53 inside the left and right fans 52 to rotate in the same direction. With the design of the fan blades 53 inside the left and right fans 52 having opposite spiral directions, the fan blades 53 on the left and right sides can respectively output and intake air. In conjunction with the air guide windows 7 and the conveying pipes 8 on both sides, air can be output and intake simultaneously, improving ventilation efficiency.

[0049] During the rotation of the rotating shaft 45, when the gear 47 is driven to rotate, the meshing connection of the gear 47 inside the gear ring groove 48 and the upper and lower limit sliding connection of the mounting frame 42 inside the mounting groove 2 limit sliding groove 41, and the left and right limit sliding connection of the fixed frame 43 inside the mounting frame 42, enable the fixed frame 43 to drive the motor 44 to move up, down and left and right in a cyclical manner within the mounting groove 2. During the left and right movement of the fixed frame 43 and the motor 44, the cooperation between the elastic telescopic rod 56 and the connecting plate 55 enables the fans 52 on both sides to move back and forth, thereby achieving a sweeping air intake and exhaust, and improving the air diffusion effect.

[0050] It should be noted that: through the elastic extension and retraction design of the elastic telescopic rod 56, during the process of the motor 44 driving the rotating shaft 45 and the first pulley 46 to move up and down, the elastic connection between the elastic telescopic rod 56 and the connecting plate 55 helps to keep the belt 9 between the first pulley 46 and the second pulley 54 in a taut state, which is beneficial to the stability of the transmission between the first pulley 46 and the second pulley 54 through the belt 9.

[0051] During the process of the motor 44 driving the rotating shaft 45 to move up, down, left, and right in a circular motion, the rotating shaft 45, in cooperation with the mounting plate 63, can drive the mounting plate 63 to move up and down reciprocally. This, in turn, drives the rectangular frames 61 on the left and right sides located on the front to move up and down reciprocally. During the up and down reciprocating movement of the front rectangular frames 61, the cooperation between the limiting post 64 on the side end of the filter plate 62 and the rotating rod 65 connected to the side wall of the ventilation slot 3 can drive the rear rectangular frame 61 to move up and down in the opposite direction. During the misaligned movement of the front and rear rectangular frames 61, the filter plate 62 between the rectangular frames 61 can tilt and flip, so that different surfaces on the filter plate 62 act in accordance with the air inlet direction. This avoids the concentrated accumulation of dust on one side of the filter plate 62 during the filtration process, which is conducive to improving the filtration effect and the service life of the filter plate 62.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A window sill type bidirectional fan having good filtering property, comprising a housing (1), characterized in that, The middle part of the front side of the shell (1) is provided with a mounting groove (2), the left and right sides of the mounting groove (2) of the front side of the shell (1) are symmetrically provided with ventilation grooves (3), the inside of the mounting groove (2) is provided with a driving assembly (4), the inside of the ventilation groove (3) is provided with a suction assembly (5), the rear side of the suction assembly (5) inside the shell (1) is provided with a filtering assembly (6), the front side of the ventilation groove (3) is provided with an air guide window (7), the bottom end of the rear side of the shell (1) is fixedly provided with a conveying pipe (8), and the conveying pipe (8) is communicated with the left and right ventilation grooves (3); Wherein, the driving assembly (4) is used for driving the suction assembly (5) to input and discharge the air in a flat sweeping manner, and the driving assembly (4) is also used for driving the filtering assembly (6) to filter the air in a turning manner; Wherein, the driving assembly (4) comprises: A limiting sliding groove (41) is fixedly installed on the left and right sides of the inside of the mounting groove (2); An installation frame (42) is slidingly connected between the limiting sliding grooves (41); A fixed frame (43) is slidingly connected to the inside of the installation frame (42); A motor (44) is fixedly installed on the inside of the fixed frame (43); A rotating shaft (45) is drivingly connected to the rear side of the motor (44); A first pulley (46) is fixedly installed on the periphery of the rotating shaft (45), and the number of the first pulleys (46) is two; A gear (47) is fixedly installed on the rear end of the rotating shaft (45); A gear ring groove (48) is formed on the rear side of the inside of the mounting groove (2) of the shell (1), and the gear ring groove (48) is located on the outside of the gear (47), and the gear (47) is engaged with the inside of the gear ring groove (48); The suction assembly (5) comprises: A connecting column (51) is fixedly installed on the inside of the left and right ventilation grooves (3); A fan (52) is slidingly connected to the inside of the ventilation groove (3) through the connecting column (51); A fan blade (53) is rotatably connected to the central part of the inside of the fan (52); A second pulley (54) is fixedly installed on the rear end of the fan blade (53); A connecting plate (55) is fixedly installed on the adjacent side of the left and right fans (52); An elastic telescopic rod (56) is arranged between the left and right ends of the connecting plate (55) and the fixed frame (43), one end of the elastic telescopic rod (56) is fixedly installed on the fixed frame (43), and the other end is slidingly connected to the connecting plate (55).

2. The window sill type bidirectional fan of good filtration according to claim 1, characterized in that, The spiral directions of the fan blades (53) on the inside of the left and right fans (52) are opposite.

3. The window sill type bidirectional fan of good filtration according to claim 1, wherein The first belt pulley (46) and the second belt pulley (54) on the left and right sides are both transmission connected with a belt (9).

4. The window sill type bidirectional fan of good filtration according to claim 1, wherein The elastic telescopic rod (56) penetrates the partition between the installation slot (2) and the ventilation slot (3), and the limiting sliding groove (41) and the installation frame (42), and recesses are formed at the penetration positions of the partition between the installation slot (2) and the ventilation slot (3) and the limiting sliding groove (41) to limit the up-and-down sliding of the elastic telescopic rod (56).

5. The window sill type bidirectional fan of good filtration according to claim 1, wherein The filter assembly (6) comprises: Rectangular frames (61) are movably connected to the rear sides of the fans (52) in the ventilation slots (3) on the left and right sides, and two rectangular frames (61) are distributed in front of and behind each other. Filter plates (62) are uniformly transmission connected between the two rectangular frames (61) distributed in front of and behind each other, and the two sides of the filter plate (62) are respectively hinged to the interiors of the rectangular frames (61) on the front and back sides. An installation plate (63) is fixedly installed between the rectangular frames (61) on the left and right sides on the front side, and the installation plate (63) is limitingly and slidingly connected inside the housing (1) in an up-and-down manner. Limiting columns (64) are fixedly installed at the middle parts of the ends of the rectangular frames (61) on the left and right sides away from each other. Rotating rods (65) are limitingly and rotationally connected to the left side wall of the left ventilation slot (3) and the right side wall of the right ventilation slot (3).

6. The window sill type bidirectional fan of good filtration according to claim 5, characterized in that, The rotating shaft (45) penetrates the middle part of the installation plate (63), and a linear groove is formed in the middle part of the installation plate (63) to limit the left-and-right sliding of the rotating shaft (45).

7. The window sill type bidirectional fan of good filtration according to claim 5, characterized in that, Waist holes are symmetrically formed on the two sides of the rotating rod (65), the limiting columns (64) on the side ends of the rectangular frames (61) distributed in front of and behind each other respectively extend into the waist holes on the two sides of the rotating rod (65) and are limitingly and slidingly connected in the waist holes, and the rectangular frame (61) on the front side is limitingly and slidingly connected in the ventilation slot (3) in an up-and-down manner, the rectangular frame (61) on the back side is slidingly connected in the ventilation slot (3), and the rectangular frame (61) on the back side can slide in the ventilation slot (3) in a front-and-back and up-and-down manner.

Images