阅读说明：本技术 一种环保型轴流通风机 (Environment-friendly axial-flow fan ) 是由 唐国亮 马建忠 于 2020-05-25 设计创作，主要内容包括：本发明涉及轴流风机的技术领域,旨在提供一种环保型轴流通风机,包括风筒、设置于风筒内的螺旋桨、驱动电机；所述风筒的出风口内侧设置有导风板,所述导风板与风筒内壁之间形成导风腔；所述导风腔的出风口处设置有用于吸附粉尘的吸附网。本方案中的轴流通风机运行时,气流会在螺旋桨的推动下从进风口进入导风腔内,利用吸附网吸附粉尘后,再从出风口重新排出；而当吸附网吸附的粉尘较多导致孔隙堵塞时,气流将难以通过吸附网,而不断进入导风腔的气流使导风腔内产生高气压,阻碍后续的气流进入,使得气流于导风板的内侧流通,避免通风效果减弱。(The invention relates to the technical field of axial fans, and aims to provide an environment-friendly axial fan which comprises an air duct, a propeller and a driving motor, wherein the propeller and the driving motor are arranged in the air duct; an air guide plate is arranged on the inner side of an air outlet of the air duct, and an air guide cavity is formed between the air guide plate and the inner wall of the air duct; and an adsorption net for adsorbing dust is arranged at the air outlet of the air guide cavity. When the axial flow fan in the scheme operates, airflow enters the air guide cavity from the air inlet under the pushing of the propeller, and is discharged from the air outlet again after dust is adsorbed by the adsorption net; when more dust adsorbed by the adsorption net causes pore blockage, the air flow is difficult to pass through the adsorption net, and the air flow continuously entering the air guide cavity enables the air guide cavity to generate high air pressure to block subsequent air flow from entering, so that the air flow circulates on the inner side of the air guide plate, and the ventilation effect is prevented from being weakened.)

1. An environment-friendly axial flow fan comprises a wind barrel (1), a propeller (2) arranged in the wind barrel (1), and a driving motor (3) used for driving the propeller (2) to rotate; the method is characterized in that: the inner side of an air outlet of the air duct (1) is provided with an annular air deflector (11) in a surrounding way along the axial lead, and an air guide cavity (12) is formed between the air deflector (11) and the inner wall of the air duct (1); an air inlet (121) is formed in one side, facing the propeller (2), of the air guide cavity (12), and an air outlet (122) is formed in one side, facing away from the propeller (2); and an adsorption net (4) for adsorbing dust is arranged at the air outlet (122).

2. The environment-friendly axial-flow fan according to claim 1, wherein: the adsorption net (4) is a large-pore fiber net woven by electret fibers.

3. The environment-friendly axial-flow fan according to claim 1, wherein: a grating plate (123) is arranged at the air outlet (122); the grating plate (123) inclines towards the inner wall of the air duct (1) along the air outlet direction; the adsorption net (4) is arranged on the inner side of the grid plate (123) facing the air guide cavity (12).

4. The environment-friendly axial-flow fan according to claim 1, wherein: an outer flip cover capable of being opened outwards is arranged on the air duct (1) at the air guide cavity (12); the adsorption net (4) is in a ring shape by connecting net cloth end to end, and the two ends connected end to end are respectively a movable end (41) and a locking end (42); a detachable connecting structure is arranged between the movable end (41) and the locking end (42).

5. The environment-friendly axial-flow fan according to claim 4, wherein: the detachable connecting structure comprises a locked part (411) arranged at the movable end (41) and a locking part (421) arranged at the locking end (42); a plurality of locking holes (4111) are formed in the locked part (411) along the edge of the movable end (41), and a plurality of locking pins (4211) are correspondingly arranged at the lower end of the locking part (421); the lock pin (4211) penetrates into the locking hole (4111) along the radial direction of the air duct (1) to be locked.

6. The environment-friendly axial-flow fan according to claim 5, wherein: the outer turnover cover comprises a left turnover cover (13) and a right turnover cover (14) which are in a semicircular ring shape along the axial lead of the air duct (1); one end of the left flip cover (13) and one end of the right flip cover (14) are hinged to the lower end of the air duct (1), and the other end of the left flip cover and the other end of the right flip cover are respectively provided with a left fixing plate (131) and a right fixing plate (141) which can be attached to each other; the left fixing plate (131) and the right fixing plate (141) are provided with through holes (15) in a penetrating mode, and fixing bolts (16) and fixing nuts (17) used for fixing the left fixing plate and the right fixing plate are arranged at the positions of the through holes (15).

7. The environment-friendly axial-flow fan according to claim 6, wherein: an operation opening (18) communicated with the air guide cavity (12) and the outside is formed between the left fixing plate (131) and the right fixing plate (141); the locking piece (421) is in a plate shape and is connected in the operation opening (18) in a sliding manner along the radial direction of the air duct (1).

8. The environment-friendly axial-flow fan according to claim 1, wherein: the propeller (2) comprises a plurality of blades (21) which are arranged along the circumferential direction; the blades (21) are provided with shark fin-shaped guide vanes (211), and the guide vanes (211) incline towards the axis line along the rotation direction of the propeller (2).

9. The environment-friendly axial-flow fan according to claim 8, wherein: a plurality of guide vanes (211) are arranged on any one of the blades (21); the guide vanes (211) on the same blade (21) are parallel to each other and are arranged at intervals along the length direction of the blade (21).

Technical Field

The invention relates to the technical field of axial flow fans, in particular to an environment-friendly axial flow fan.

Background

The axial flow fan has a very wide application range, such as an electric fan, and an air conditioner external unit fan is an axial flow type running fan. The axial flow is called because the generated gas flows parallel to the fan shaft, and actually flows in a spiral diffusion way along the axial lead of the fan shaft, and is blown out along the length direction of the fan shaft under the restriction of the air duct.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an environment-friendly axial flow fan which can realize the filtering effect on the premise of not influencing the ventilation effect per se.

The technical purpose of the invention is realized by the following technical scheme:

an environment-friendly axial flow fan comprises an air duct, a propeller arranged in the air duct and a driving motor used for driving the propeller to rotate; the inner side of the air outlet of the air duct is provided with an annular air deflector in a surrounding way along the axial lead, and an air guide cavity is formed between the air deflector and the inner wall of the air duct; an air inlet is formed in one side, facing the propeller, of the air guide cavity, and an air outlet is formed in one side, back to the propeller, of the air guide cavity; and an adsorption net for adsorbing dust is arranged at the air outlet.

By adopting the technical scheme, when the propeller in the existing axial flow fan rotates, the generated air flow flows along the spiral direction and clings to the inner wall of the air cylinder; when the axial flow fan in the scheme operates, airflow enters the air guide cavity from the air inlet under the pushing of the propeller, and is discharged from the air outlet again after the dust is adsorbed by the adsorption net; when more dust adsorbed by the adsorption net causes pore blockage, the air flow is difficult to pass through the adsorption net, and the air flow continuously entering the air guide cavity enables the air guide cavity to generate high air pressure to block subsequent air flow from entering, so that the air flow circulates on the inner side of the air guide plate, and the ventilation effect is prevented from being weakened.

The invention is further configured to: the adsorption net is a macroporous filter net made of electret fibers by a non-woven fabric method.

Through adopting above-mentioned technical scheme, electret non-woven cloth has more excellent dust entrapment rate and air filter efficiency because of the effect of electrostatic force compared with general filter screen cloth.

The invention is further configured to: a grating plate is arranged at the air outlet; the grating plate inclines towards the inner wall of the air duct along the air outlet direction; the adsorption net is arranged on the inner side of the grid plate facing the air guide cavity.

By adopting the technical scheme, the adsorption net is supported by using the grating plates as the framework; and the grating plate is obliquely arranged in a horn shape, so that when dust or other larger particles are blocked in the air guide cavity by the adsorption net, the dust or other larger particles can move to the edge of the air guide cavity along the inclined plane under the pushing of the air flow, and can not stay on the surface of the adsorption net to cause pore blockage.

The invention is further configured to: an outer flip cover capable of being opened outwards is arranged on the air duct at the air guide cavity; the adsorption net is in a ring shape by connecting net cloth end to end, and two ends connected end to end are respectively a movable end and a locking end; and a detachable connecting structure is arranged between the movable end and the locking end.

By adopting the technical scheme, when the adsorption net needs to be disassembled or replaced, the outer turnover cover is opened towards the outer side, the air guide cavity is exposed to the outside, the movable end is separated from the locking end, and the adsorption net can be easily taken out from the outer side of the air duct.

The invention is further configured to: the detachable connecting structure comprises a locked part arranged at the movable end and a locking part arranged at the locking end; a plurality of locking holes are formed in the edge of the upper edge of the movable end of the locked piece, and a plurality of locking pins are correspondingly arranged at the lower end of the locking piece; the lock needle penetrates into the lock hole along the radial direction of the air duct to be locked.

Through adopting above-mentioned technical scheme, during the lock needle radially penetrated the locking hole along the dryer, formed simple locking structure, convenient to detach.

The invention is further configured to: the outer turnover cover comprises a left turnover cover and a right turnover cover which are in a semicircular ring shape along the axial lead of the air duct; one end of the left flip cover and one end of the right flip cover are hinged to the lower end of the air duct, and the other end of the left flip cover and the other end of the right flip cover are respectively provided with a left fixing plate and a right fixing plate which can be attached to each other; and through holes are formed in the left fixing plate and the right fixing plate in a penetrating mode, and fixing bolts and fixing nuts used for fixing the left fixing plate and the right fixing plate are arranged at the through holes.

By adopting the technical scheme, the left flip cover and the right flip cover are fixed through the fixing bolt and the fixing nut, the structure is simple, and the operation is convenient; and the left flip cover and the right flip cover can be used for opening the whole air guide cavity, so that the adsorption net is convenient to disassemble, and the air guide cavity is convenient to clean.

The invention is further configured to: an operation opening communicated with the air guide cavity and the outside is formed between the left fixing plate and the right fixing plate; the locking piece is connected in the operation opening in a sliding manner along the radial direction of the air duct; the end of the locking piece penetrates out of the operation opening, and the end is provided with an operation handle.

Through adopting above-mentioned technical scheme, extract through following the operation mouthful with the locking piece, can make the lock needle from receiving the latch fitting separation, can take out whole absorption net from the operation mouthful simultaneously, need not open left flip and right flip, easy operation is convenient.

The invention is further configured to: the propeller comprises a plurality of blades which are arranged along the circumferential direction; the blades are provided with flow deflectors which incline towards the axis line along the rotating direction.

Through adopting above-mentioned technical scheme, when the screw rotated, utilize the water conservancy diversion piece guide air current to flow towards the inner wall direction of dryer to make more air currents can enter into the wind-guiding intracavity.

The invention is further configured to: a plurality of flow deflectors are arranged on any one of the blades; the same guide vanes on the blades are parallel to each other and are arranged at intervals along the length direction of the blades.

By adopting the technical scheme, the flow guide effect on the air flow is further enhanced.

In conclusion, the beneficial effects of the invention are as follows:

1. when the axial flow fan in the scheme operates, airflow enters the air guide cavity from the air inlet under the pushing of the propeller, and is discharged from the air outlet again after dust is adsorbed by the adsorption net; when more dust is adsorbed by the adsorption net to cause pore blockage, the airflow is difficult to pass through the adsorption net, and the airflow continuously entering the air guide cavity generates high air pressure in the air guide cavity to block subsequent airflow from entering, so that the airflow circulates at the inner side of the air guide plate, and the ventilation effect is prevented from being weakened;

2. through extracting the locking piece from the operation mouth, can make the lock needle from receiving the latch fitting separation, can take out whole absorption net from the operation mouth simultaneously, need not open left flip and right flip, easy operation is convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the view angle of the air outlet of the air duct of the present invention;

FIG. 2 is a schematic view of the overall structure of the viewing angle of the air suction opening of the air duct of the present invention;

FIG. 3 is a schematic structural diagram of the present invention when the left and right covers are opened;

FIG. 4 is a schematic view of a partial structure of the adsorption net of the present invention;

fig. 5 is an exploded view of the left flip, the right flip and the locking member of the present invention.

Reference numerals: 1. an air duct; 11. an air deflector; 12. a wind guide cavity; 121. an air inlet; 122. an air outlet; 123. a grid plate; 1231. positioning holes; 13. a left flip cover; 131. a left fixing plate; 14. a right flip cover; 141. a right fixing plate; 15. a through hole; 16. fixing the bolt; 17. fixing a nut; 18. an operation port; 2. a propeller; 21. a paddle; 211. a flow deflector; 3. a drive motor; 4. an adsorption net; 41. a movable end; 411. a locked member; 4111. a locking hole; 42. a locking end; 421. a locking member; 4211. locking the needle; 4212. the handle is operated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an environment-friendly axial flow fan, as shown in fig. 1 and 2, comprising an air duct 1, a propeller 2 rotatably connected in the air duct 1 along the axial lead of the air duct 1, and a driving motor 3 for driving the propeller 2 to rotate. An annular air deflector 11 is arranged in the air duct 1 on the air exhaust side of the propeller 2 in a surrounding manner along the axial lead, and the air deflector 11 is fixed in the air duct 1 through a connecting rib; an annular air guide cavity 12 is formed between the air guide plate 11 and the inner wall of the air duct 1, one side of the air guide cavity 12 facing the propeller 2 is an air inlet 121, and one side of the air guide cavity 12 facing away from the propeller 2 is an air outlet 122.

As shown in fig. 1 and 2, the propeller 2 includes a plurality of blades 21 arranged along the circumferential direction, a plurality of guide vanes 211 are integrally formed on the blades 21, the guide vanes 211 on the same blade 21 are parallel to each other and are arranged at intervals along the length direction of the blade 21, and any guide vane 211 is arranged along the rotation direction of the blade 21 and inclines towards the axial lead. When the propeller 2 of the axial flow fan rotates, the generated airflow can flow along the spiral direction and cling to the inner wall of the air duct 1, and the guide vane 211 can guide the airflow to flow towards the inner wall of the air duct 1, so that more airflow enters the air guide cavity 12.

As shown in fig. 3, a circle of grating plates 123 is fixedly connected to the air outlet 122, and the grating plates 123 are inclined towards the inner wall of the air duct 1 along the air outlet direction and are horn-shaped. The grille plate 123 is used as a framework, the inner side of the grille plate 123 facing the air guide cavity 12 is provided with a layer of flexible adsorption net 4, the adsorption net 4 is a large-pore filter net made of electret fibers by a non-woven fabric method, the electret non-woven fabric has excellent dust collection rate and air filtration efficiency due to electrostatic force, can filter dust of passing air flow, and is suitable for operation environments which can generate dust in paint spraying factories and the like. When more dust adsorbed by the adsorption net 4 causes pore blockage, the airflow is difficult to pass through the adsorption net 4, and the airflow continuously entering the air guide cavity 12 causes high air pressure in the air guide cavity 12 to block subsequent airflow from entering, so that the airflow circulates on the inner side of the air guide plate 11, and the ventilation effect is prevented from being weakened.

As shown in fig. 3, a circle of annular gap is formed in the air guiding cavity 12 of the air duct 1, and a left flip 13 and a right flip 14 capable of closing the gap toward the middle are hinged to the gap. The left flip cover 13 and the right flip cover 14 are both in a semicircular ring shape along the axial line of the air duct 1, one end of the left flip cover 13 and the right flip cover 14 is hinged to the lower end of the air duct 1, the other end of the left flip cover 13 and the right flip cover 14 are respectively welded with a left fixing plate 131 and a right fixing plate 141 which can be attached to each other, and an air guide cavity 12 is formed between the left flip cover 13 and the right flip cover 14 and the air guide. A plurality of through holes 15 are formed through the left fixing plate 131 and the right fixing plate 141, fixing bolts 16 are inserted into the through holes 15, and the left fixing plate 131 and the right fixing plate 141 are fixedly connected by tightening the fixing nuts 17 and the fixing bolts 16, so that the left flip 13 and the right flip 14 are fixed together to close the gap.

As shown in fig. 3 and 4, the adsorption net 4 is formed by connecting a long length of net cloth end to end in a ring shape, and the two ends connected end to end are a movable end 41 and a locking end 42 respectively. Wherein, the movable end 41 is fixedly connected with a strip-shaped locked part 411 along the edge, and a plurality of locking holes 4111 are arranged on the locked part 411 at intervals along the length direction thereof; the locking end 42 is fixedly connected with a platy locking member 421, a plurality of locking pins 4211 are welded at the position, corresponding to the locking member 421, below the end of the locking member 421 connected with the adsorption net 4, the locking pins 4211 can penetrate into the locking hole 4111 along the radial direction of the air duct 1 for locking, and a positioning hole 1231 for penetrating the end of the locking pin 4211 is formed in the corresponding position of the grating plate 123. When the adsorption net 4 needs to be detached or replaced, the outer flip cover is opened towards the outside to expose the air guide cavity 12 to the outside, and then the locking member 421 is separated from the locked member 411, so that the adsorption net 4 can be easily taken out from the outside of the air duct 1, and the inside of the air guide cavity 12 can be cleaned conveniently.

As shown in fig. 3 and 5, an operation opening 18 is formed between the left fixing plate 131 and the right fixing plate 141, and the operation opening 18 communicates the air guiding cavity 12 with the outside along the radial direction of the air duct 1. The locking member 421 is inserted into the operation opening 18, and an end portion thereof protrudes from the operation opening 18, and an operation handle 4212 is integrally formed at the end portion. When the axial flow fan works normally, the locking piece 421 is clamped by the left fixing plate 131 and the right fixing plate 141 under the tightening of the fixing bolt 16 and the fixing nut 17, and the sealing of the operation opening 18 is realized; when the axial flow fan stops working due to inconvenience of taking out the adsorption net 4, the locking piece 421 can be pulled out from the operation opening 18 by slightly loosening the fixing bolt 16 and the fixing nut 17, so that the locking pin 4211 can be separated from the locked piece 411, and the whole adsorption net 4 can be taken out from the operation opening 18 without opening the left flip cover 13 and the right flip cover 14, so that the operation is simpler and more convenient.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.