阅读说明：本技术 一种低噪声轴流风机 (Low-noise axial flow fan ) 是由 路闯 尹强强 于 2021-08-31 设计创作，主要内容包括：本发明涉及轴流风机领域,尤其是涉及一种低噪声轴流风机,包括风筒,所述风筒的出风口位置固定连接有防护板,且风筒的进风口位置固定连接有过滤网板,并且过滤网板上均匀开设有通风孔,所述风筒内侧壁固定连接有隔音层,且隔音层呈圆筒形结构,所述风筒内部中心位置设置有横板,且横板上端面中心位置固定连接有固定座,所述横板的左右两端分别与风筒的内侧壁固定连接,且横板下端面中心位置固定连接有V形结构的加强板,并且加强板下端分别与风筒的内侧壁固定连接,所述风筒上方设置有驱动机构。该低噪声轴流风机降低了风机的噪声,通过降尘机构对过滤网板进行刮擦从而避免过滤网板堵塞,通过通风机构对电机进行通风散热。(The utility model relates to the field of axial flow fans, in particular to a low-noise axial flow fan which comprises an air duct, wherein a protection plate is fixedly connected to the position of an air outlet of the air duct, a filter screen plate is fixedly connected to the position of an air inlet of the air duct, vent holes are uniformly formed in the filter screen plate, a sound insulation layer is fixedly connected to the inner side wall of the air duct and is of a cylindrical structure, a transverse plate is arranged at the central position inside the air duct, a fixed seat is fixedly connected to the central position of the upper end face of the transverse plate, the left end and the right end of the transverse plate are respectively and fixedly connected with the inner side wall of the air duct, a reinforcing plate of a V-shaped structure is fixedly connected to the central position of the lower end face of the transverse plate, the lower end of the reinforcing plate is respectively and fixedly connected with the inner side wall of the air duct, and a driving mechanism is arranged above the air duct. This low noise axial fan has reduced the noise of fan, thereby carries out the scraping to filtering the otter board through dust fall mechanism and avoids filtering the otter board and block up, carries out ventilation cooling to the motor through ventilation mechanism.)

1. The utility model provides a low noise axial fan, includes dryer (2), its characterized in that: the air outlet of the air duct (2) is fixedly connected with a protection plate (21), the air inlet of the air duct (2) is fixedly connected with a filter screen plate (22), the inner side wall of the air duct (2) is fixedly connected with a sound insulation layer (23), the sound insulation layer (23) is of a cylindrical structure, a transverse plate (6) is arranged at the central position inside the air duct (2), a fixing seat (61) is fixedly connected with the central position of the upper end face of the transverse plate (6), the left end and the right end of the transverse plate (6) are respectively and fixedly connected with the inner side wall of the air duct (2), a reinforcing plate (62) of a V-shaped structure is fixedly connected with the central position of the lower end face of the transverse plate (6), the lower end of the reinforcing plate (62) is respectively and fixedly connected with the inner side wall of the air duct (2), and a driving mechanism (5) is arranged above the air duct (2);

the driving mechanism (5) comprises a motor (51), a driving belt wheel (52), a driven belt wheel (53), a transmission shaft (54), fan blades (55), a sound-proof cover (56), a heat dissipation metal sheet (57) and a spiral channel (58), wherein the transmission shaft (54) penetrates through the center of a fixing seat (61) and is movably connected with the fixing seat (61) through a bearing, the front end of the transmission shaft (54) is fixedly connected with the fan blades (55), the rear end of the transmission shaft (54) is fixedly connected with the driven belt wheel (53), the motor (51) is fixedly connected with the center of the upper end face of the air duct (2), the sound-proof cover (56) covers the outer side of the motor (51), a belt is arranged on the driving belt wheel (52), the belt penetrates through the air duct (2) and a sound-proof layer (23) and is rotatably connected with the driving belt wheel (52) and the driven belt wheel (53), the center of the front side face of the driving belt wheel (52) is fixedly connected with an output shaft of the motor (51), radiating metal piece (57) are helical structure fixed connection and at the surface of motor (51), and radiating metal piece (57) is inside has seted up helical coiled passage (58), dryer (2) lateral surface central point puts and is provided with U-shaped frame (10), and U-shaped frame (10) lower extreme difference fixed connection is in the left and right sides that bottom plate (1) up end central point put, the upper end of U-shaped frame (10) is higher than sound-proof housing (56), dryer (2) lower extreme surface is provided with one-level shock absorber post (3) and second grade shock absorber post (4).

2. The low noise axial flow fan according to claim 1, wherein: the primary damping column (3) is composed of an upper column (31), damping springs (32), movable rods (33), three cylindrical holes (34) and a lower column (35), the upper column (31) is fixedly connected with the left side and the right side of the lower portion of the air duct (2) at equal intervals, the movable rods (33) are fixedly connected with the center of the lower end face of the upper column (31), a bottom plate (1) is arranged below the air duct (2), the lower column (35) is fixedly connected with the upper end face of the bottom plate (1) corresponding to the upper column (31), the center of the upper end face of the lower column (35) is provided with the cylindrical holes (34), the lower end of each movable rod (33) is inserted into the corresponding cylindrical hole (34), the damping springs (32) are sleeved on the outer side of each movable rod (33), the upper ends of the damping springs (32) are fixedly connected with the lower end face of the upper column (31), and the lower ends of the damping springs (32) are fixedly connected with the upper end face of the lower column (35), second grade shock attenuation post (4) terminal surface central point puts equidistance fixedly connected with three under dryer (2), and the lower extreme of second grade shock attenuation post (4) and bottom plate (1) up end fixed connection, second grade shock attenuation post (4) are unanimous with the structure of one-level shock attenuation post (3), and the size of second grade shock attenuation post (4) is less than one-level shock attenuation post (3).

3. The low noise axial flow fan according to claim 1, wherein: a dust-settling mechanism (8) is arranged behind the U-shaped frame (10), the dust-settling mechanism (8) comprises a water storage tank (81), a water replenishing pipe (82), a one-way valve (83), a middle water tank (84), a primary water pipe (85) and a secondary water pipe (86), the water storage tank (81) is fixedly connected to the central position of the upper end face of the U-shaped frame (10), the water inlet of the water replenishing pipe (82) is communicated with the lower end of the rear side face of the water storage tank (81), the water outlet of the water replenishing pipe (82) is communicated with the central position of the rear side face of the middle water tank (84), the one-way valve (83) is arranged at the position of the water outlet of the water replenishing pipe (82), the middle water tank (84) is fixedly connected to the rear side position of the upper end face of the air duct (2), the water inlet of the primary water pipe (85) is communicated with the lower end face of the middle water tank (84), one end of the secondary water pipe (86) is communicated with the lower end of the front side face of the middle water tank (84), the other end of the secondary water pipe (86) is communicated with the water inlet end of the spiral channel (58), a transmission mechanism (7) is arranged inside the middle water tank (84), and an annular pipe (9) is arranged below the middle water tank (84).

4. A low noise axial flow fan according to claim 3, wherein: the middle water tank (84) is internally provided with a transmission mechanism (7), the transmission mechanism (7) comprises a transmission rod (71), a sealing bearing (72), a turntable (73), a hinge shaft (74), a crank connecting rod (75) and a piston (76), the front end of the transmission rod (71) is fixedly connected with the center of the rear side of the driving pulley (52), the rear end of the transmission rod (71) penetrates through the front side of the middle water tank (84) and is fixedly connected with the center of the front side of the turntable (73) inside the middle water tank (84), the contact position of the transmission rod (71) and the middle water tank (84) is provided with the sealing bearing (72), the hinge shaft (74) is fixedly connected with the upper end of the rear side of the turntable (73), the lower end of the crank connecting rod (75) is hinged with the hinge shaft (74), and the upper end of the crank connecting rod (75) is fixedly connected with the center of the lower end of the piston (76), the piston (76) is disposed at an upper end inside the intermediate water tank (84).

5. A low noise axial flow fan according to claim 3, wherein: the air outlet position fixedly connected with ring pipe (9) in dryer (2), and the inside wall annular equidistance fixedly connected with atomizer (91) of ring pipe (9) to one-level raceway (85) and ring pipe (9) upper end intercommunication.

6. The low noise axial flow fan according to claim 1, wherein: the air duct (2) is characterized in that a temporary storage water tank (11) is fixedly connected to the front side of the upper end face of the air duct (2), the water outlet end of the spiral channel (58) is communicated with a water outlet pipe (12), and the water outlet pipe (12) is communicated with the lower end of the rear side face of the temporary storage water tank (11).

Technical Field

The utility model relates to the field of axial flow fans, in particular to a low-noise axial flow fan.

Background

The axial flow fan is widely used, gas flows in parallel to a fan shaft, the axial flow fan is usually used in occasions with higher flow requirement and lower pressure requirement, the axial flow fan mainly comprises a fan impeller and a casing, the structure is simple, but the data requirement is higher, the common axial flow fan can be used for ventilation in places such as general factories, warehouses, offices, houses and the like, and can also be used for air coolers, evaporators, condensers, spray cooling and the like, the existing axial flow fan is also used for mines, the implementation position is usually fixed and unchanged, and the gas conveyed by the axial flow fan is usually required to have no obvious dust, no viscosity and fibrous substances; direct-coupled type temperature of motorThe temperature of the belt transmission type is not more than 40 ℃, the temperature of the belt transmission type is not more than 60 ℃, and the dust amount of the conveying gas is not more than 150mg/m³。

The low-noise axial flow fan comprises a supporting seat, a protective shell, fan blades, a sucker and a motor, wherein the motor is fixed to one end of the inner side wall of the protective shell, a rotating shaft is installed at the output end of the motor through a coupler, the fan blades are installed on the surface of the rotating shaft, an arc-shaped cylinder is fixed to the surface of the protective shell outside the motor, equidistant wind direction signs are arranged on the outer side wall of the arc-shaped cylinder, a clamping groove is formed in the central position of the surface of the protective shell, a supporting disc is fixed to the central position of the top end of the clamping groove, fixing bolts are connected to the surfaces of arc-shaped fixing discs on the two sides of the supporting disc in a threaded mode, a hinge frame is fixed to the outer side wall, close to one end of the rotating shaft, and an outer protective cover is arranged on one side of the protective shell. The utility model not only improves the convenience degree of the axial flow fan when being fixed and the safety of the axial flow fan when in use, but also realizes the wind direction indicating function of the axial flow fan.

However, the low-noise axial flow fan does not consider the following problems when in use:

the axial direction of a main shaft of the motor is the same as that of the fan blade assembly, the motor is positioned on the central axis of the fan blade assembly, a large number of coil windings are arranged in the high-power motor, so that the volume of the motor is large, the motor inevitably occupies a circulation channel of airflow in the fan blade assembly, the ventilation effect of the ventilator is influenced, air turbulence is caused, and large noise is generated; the inside dust device that does not set up of fan to work such as ore mining, screening processing and stone carving contains the air of dust and can produce great raise dust after the dryer blows out through the fan when using, and the dust of raising is easily inhaled the lung by the workman, and this in the past can cause the pneumoconiosis and harm the healthy of workman.

Disclosure of Invention

The present invention is directed to a low noise axial flow fan to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a low-noise axial flow fan comprises an air duct, wherein a protection plate is fixedly connected to the position of an air outlet of the air duct, a filter screen plate is fixedly connected to the position of an air inlet of the air duct, a sound insulation layer is fixedly connected to the inner side wall of the air duct and is of a cylindrical structure, a transverse plate is arranged in the center of the interior of the air duct, a fixed seat is fixedly connected to the center of the upper end face of the transverse plate, the left end and the right end of the transverse plate are respectively and fixedly connected with the inner side wall of the air duct, a reinforcing plate of a V-shaped structure is fixedly connected to the center of the lower end face of the transverse plate, the lower end of the reinforcing plate is respectively and fixedly connected with the inner side wall of the air duct, and a driving mechanism is arranged above the air duct;

the driving mechanism comprises a motor, a driving belt wheel, a driven belt wheel, a transmission shaft, fan blades, a sound-proof cover, a heat-dissipation metal sheet and a spiral channel, the transmission shaft penetrates through the central position of the fixing seat and is movably connected with the fixing seat through a bearing, the fan blades are fixedly connected with the front end of the transmission shaft, the driven belt wheel is fixedly connected with the rear end of the transmission shaft, the motor is fixedly connected with the central position of the upper end surface of the air duct, the sound-proof cover covers the outer side of the motor, a belt penetrates through the air duct and the sound-proof layer and is rotatably connected with the driving belt wheel and the driven belt wheel, the central position of the front side surface of the driving belt wheel is fixedly connected with an output shaft of the motor, the heat-dissipation metal sheet is fixedly connected with the outer surface of the motor in a spiral structure, the spiral channel is arranged inside the heat-dissipation metal sheet, a U-shaped frame is arranged at the central position of the outer side surface of the air duct, and the lower end of the U-shaped frame is respectively and fixedly connected with the left side and the left side of the central position of the upper end surface of the bottom plate, the upper end of U-shaped frame is higher than the sound-proof housing, dryer lower extreme surface is provided with one-level shock attenuation post and second grade shock attenuation post.

Preferably, the primary damping column consists of three upper struts, three damping springs, a movable rod, a cylindrical hole and a lower strut, the upper struts are fixedly connected with the left side and the right side below the air duct at equal intervals, the movable rod is fixedly connected with the central position of the lower end surface of the upper strut, a bottom plate is arranged below the air duct, the lower struts are fixedly connected with the upper end surface of the bottom plate corresponding to the upper struts, the cylindrical hole is arranged at the central position of the upper end surface of the lower strut, the lower ends of the movable rods are inserted into the cylindrical hole, the damping springs are sleeved outside the movable rods, the upper ends of the damping springs are fixedly connected with the lower end surface of the upper struts, the lower ends of the damping springs are fixedly connected with the upper end surface of the lower struts, the secondary damping columns are fixedly connected with the central position of the lower end surface of the air duct at equal intervals, the lower ends of the secondary damping columns are fixedly connected with the upper end surface of the bottom plate, and the secondary damping columns have the same structure as the primary damping columns, and the size of the second-level shock absorption column is smaller than that of the first-level shock absorption column.

Preferably, a dust falling mechanism is arranged behind the U-shaped frame and comprises a water storage tank, a water replenishing pipe, a one-way valve, a middle water tank, a primary water pipe and a secondary water pipe, the water storage tank is fixedly connected with the central position of the upper end surface of the U-shaped frame, the water inlet of the water replenishing pipe is communicated with the lower end of the rear side surface of the water storage tank, the water outlet of the water replenishing pipe is communicated with the central position of the rear side surface of the middle water tank, a one-way valve is arranged at the position of the water outlet of the water supplementing pipe, the middle water tank is fixedly connected at the rear position of the upper end surface of the air duct, the water inlet of the primary water delivery pipe is communicated with the lower end surface of the middle water tank, one end of the secondary water delivery pipe is communicated with the lower end of the front side surface of the middle water tank, and the other end of the secondary water pipe is communicated with the water inlet end of the spiral channel, a transmission mechanism is arranged in the middle water tank, and an annular pipe is arranged below the middle water tank.

Preferably, drive mechanism includes transfer line, sealed bearing, carousel, articulated shaft, crank connecting rod and piston, the front end of transfer line and driving pulley's trailing flank central point put fixed connection, and the leading flank central point that the trailing end of transfer line passed middle water tank puts fixed connection with the leading flank of the inside carousel of middle water tank, the transfer line is provided with sealed bearing with the contact position of middle water tank, articulated shaft fixed connection is in the upper end of carousel trailing flank, the lower extreme of crank connecting rod is articulated with the articulated shaft, and the upper end of crank connecting rod and the piston lower extreme central point put fixed connection, the piston sets up the upper end in middle water tank inside.

Preferably, the air outlet position inside the wind pipe is fixedly connected with an annular pipe, the inner side wall of the annular pipe is fixedly connected with atomizing nozzles at equal intervals in an annular mode, and the first-stage water conveying pipe is communicated with the upper end of the annular pipe.

Preferably, a temporary storage water tank is fixedly connected to the front side of the upper end face of the air duct, a water outlet end of the spiral channel is communicated with a water outlet pipe, and the water outlet pipe is communicated with the lower end of the rear side face of the temporary storage water tank.

Compared with the prior art, the utility model has the beneficial effects that:

1. the motor is fixed on the outer surface of the upper end of the air duct, the sound-proof cover is covered on the outer side of the motor, noise generated by the work of the motor is reduced, the sound-proof layer is fixedly connected on the inner side wall of the air duct, noise generated by the work of the fan blades is reduced, the fan blades are arranged in the center of the interior of the air duct, the space for air circulation in the air duct is increased, and noise generated by air turbulence is reduced;

2. the arrangement of the primary damping column and the secondary damping column improves the stability of the fan in the working process;

3. set up filter plate in the air intake position of dryer, reduce the dust volume through the fan, will adsorb on the water droplet to the dust in the air through dust fall mechanism simultaneously, avoid producing a large amount of raise dusts and cause the harm to workman's physical and mental health.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a rear view of the present invention;

FIG. 5 is a schematic view of an annular tube of the present invention;

FIG. 6 is an enlarged view of the utility model at C in FIG. 3.

Description of reference numerals:

1. a base plate; 2. an air duct; 21. a protection plate; 22. a filter screen plate; 23. a sound insulating layer; 3. a primary shock absorbing column; 31. an upper pillar; 32. a damping spring; 33. a movable rod; 34. a cylindrical bore; 35. a lower pillar; 4. a secondary shock absorbing column; 5. a drive mechanism; 51. a motor; 52. a driving pulley; 53. a driven pulley; 54. a drive shaft; 55. a fan blade; 56. a sound-proof housing; 57. a heat dissipating metal sheet; 58. a spiral channel; 6. a transverse plate; 61. a fixed seat; 62. a reinforcing plate; 7. a transmission mechanism; 71. a transmission rod; 72. sealing the bearing; 73. a turntable; 74. hinging a shaft; 75. a crank connecting rod; 76. a piston; 8. a dust falling mechanism; 81. a water storage tank; 82. a water replenishing pipe; 83. a one-way valve; 84. an intermediate water tank; 85. a primary water delivery pipe; 86. a secondary water conveying pipe; 9. an annular tube; 91. an atomizing spray head; 10. a U-shaped frame; 11. temporarily storing a water tank; 12. and (5) discharging a water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution:

a low-noise axial flow fan comprises an air duct 2, wherein a protective plate 21 is fixedly connected to the position of an air outlet of the air duct 2, a filter screen plate 22 is fixedly connected to the position of an air inlet of the air duct 2, a sound insulation layer 23 is fixedly connected to the inner side wall of the air duct 2, the sound insulation layer 23 is of a cylindrical structure, a transverse plate 6 is arranged in the center of the interior of the air duct 2, a fixing seat 61 is fixedly connected to the center of the upper end face of the transverse plate 6, the left end and the right end of the transverse plate 6 are fixedly connected with the inner side wall of the air duct 2 respectively, a reinforcing plate 62 of a V-shaped structure is fixedly connected to the center of the lower end face of the transverse plate 6, the lower end of the reinforcing plate 62 is fixedly connected with the inner side wall of the air duct 2 respectively, and a driving mechanism 5 is arranged above the air duct 2;

the driving mechanism 5 comprises a motor 51, a driving pulley 52, a driven pulley 53, a transmission shaft 54, fan blades 55, a sound-proof cover 56, a heat-dissipating metal sheet 57 and a spiral channel 58, wherein the transmission shaft 54 penetrates through the center of a fixing seat 61 and is movably connected with the fixing seat 61 through a bearing, the fan blades 55 are fixedly connected with the front end of the transmission shaft 54, the driven pulley 53 is fixedly connected with the rear end of the transmission shaft 54, the motor 51 is fixedly connected with the center of the upper end face of the air duct 2, the sound-proof cover 56 is covered on the outer side of the motor 51, a belt is arranged on the driving pulley 52, penetrates through the air duct 2 and the sound-proof layer 23 and is rotatably connected with the driving pulley 52 and the driven pulley 53, the center of the front side face of the driving pulley 52 is fixedly connected with the output shaft of the motor 51, the heat-dissipating metal sheet 57 is fixedly connected with the outer surface of the motor 51 in a spiral structure, and the spiral channel 58 is arranged inside the heat-dissipating metal sheet 57, 2 lateral surface central point of dryer puts and is provided with U-shaped frame 10, and the left and right sides that U-shaped frame 10 lower extreme fixed connection put at bottom plate 1 up end central point respectively, the upper end of U-shaped frame 10 is higher than sound-proof housing 56, 2 lower extreme surfaces of dryer are provided with one-level shock absorber post 3 and second grade shock absorber post 4.

When the fan blade 55 protecting device works, the motor 51 is started to drive the driving belt wheel 52 to rotate, the driving belt wheel 52 drives the driven belt wheel 53 to rotate through a belt, the driven belt wheel 53 drives the fan blades 55 to rotate through the transmission shaft 54, the motor 51 is fixedly connected to the outer surface of the upper end of the air duct 2, the outer side of the motor 51 is covered with the sound-proof cover 56 so as to reduce noise generated in the working process of the motor 51, the transmission shaft 54 is movably connected with the fixed seat 61, the fixed seat 61 is fixedly connected to the central position of the upper end surface of the transverse plate 6, the central position of the lower end surface of the transverse plate 6 is fixedly connected with the reinforcing plate 62 with the V-shaped structure so as to improve the stability of the fixed seat 61, further ensure the stability of the fan blades 55, simultaneously increase the circulation space of air inside the air duct 2, reduce noise generated by air turbulence, the sound-proof layer 23 is fixedly connected to the inner side wall of the air duct 2, reduce noise generated in the working process of the fan blades 55, the protecting plate 21 at the front side of the air duct 2 can protect the fan blades 55, the filter screen plate 22 at the rear side of the air duct 2 can filter dust floating in the air to prevent generation of large dust, the heat dissipation metal sheet 57 on the outer surface of the motor 51 can absorb heat generated by the motor 51, the spiral channel 58 facilitates subsequent water passing, and the heat dissipation effect of the motor 51 is improved.

As an embodiment of the present invention, as shown in fig. 1, 2, 3 and 4, the primary damping cylinder 3 is composed of an upper cylinder 31, a damping spring 32, a movable rod 33, three cylindrical holes 34 and a lower cylinder 35, the upper cylinder 31 is fixedly connected to the left and right sides of the lower part of the air duct 2 at equal intervals, the movable rod 33 is fixedly connected to the center of the lower end surface of the upper cylinder 31, the bottom plate 1 is arranged below the air duct 2, the lower cylinder 35 is fixedly connected to the upper end surface of the bottom plate 1 corresponding to the upper cylinder 31, the cylindrical hole 34 is arranged at the center of the upper end surface of the lower cylinder 35, the lower end of the movable rod 33 is inserted into the cylindrical hole 34, the damping spring 32 is sleeved outside the movable rod 33, the upper end of the damping spring 32 is fixedly connected to the lower end surface of the upper cylinder 31, the lower end of the damping spring 32 is fixedly connected to the upper end surface of the lower cylinder 35, the secondary damping cylinder 4 is fixedly connected to the center of the lower end surface of the air duct 2 at equal intervals, and the lower extreme and the 1 up end fixed connection of bottom plate of second grade shock attenuation post 4, second grade shock attenuation post 4 is unanimous with the structure of one-level shock attenuation post 3, and the size of second grade shock attenuation post 4 is less than one-level shock attenuation post 3.

The during operation, based on above-mentioned embodiment, fix bottom plate 1 at the working face, motor 51 during operation can produce the vibrations power, thereby drive dryer 2 and produce vibrations, the vibrations power that dryer 2 will receive transmits to last pillar 31, go up the vibrations power that pillar 31 will receive and transmit to movable rod 33 on, movable rod 33 removes in the cylinder hole 34 of pillar 35 upper end down under damping spring 32's cushioning effect, thereby reduce the vibrations power of fan, improve the stability of fan.

As an embodiment of the present invention, as shown in fig. 2 and fig. 6, a dust-settling mechanism 8 is disposed behind the U-shaped frame 10, the dust-settling mechanism 8 includes a water storage tank 81, a water replenishing pipe 82, a check valve 83, an intermediate water tank 84, a primary water pipe 85 and a secondary water pipe 86, the water storage tank 81 is fixedly connected to a central position of an upper end surface of the U-shaped frame 10, a water inlet of the water replenishing pipe 82 is communicated with a lower end of a rear side surface of the water storage tank 81, a water outlet of the water replenishing pipe 82 is communicated with a central position of a rear side surface of the intermediate water tank 84, the check valve 83 is disposed at a water outlet of the water replenishing pipe 82, the intermediate water tank 84 is fixedly connected to a rear position of an upper end surface of the air duct 2, a water inlet of the primary water pipe 85 is communicated with a lower end surface of the intermediate water tank 84, one end of the secondary water pipe 86 is communicated with a lower end of a front side surface of the intermediate water tank 84, and the other end of the secondary water pipe 86 is communicated with a water inlet end of the spiral channel 58, the transmission mechanism 7 is arranged in the middle water tank 84, and the annular pipe 9 is arranged below the middle water tank 84.

During operation, thereby drive driving pulley 52 through motor 51 and rotate and drive mechanism 7 and make a round trip to extrude the cold water in middle water tank 84, cold water in the water storage box 81 constantly passes through moisturizing pipe 82 and gets into middle water tank 84, check valve 83 only opens when moisturizing pipe 82 replenishes water to middle water tank 84, partly cold water in middle water tank 84 pours into ring channel 9 into through one-level raceway 85 into, another part pours into spiral passage 58 into through second grade raceway 86 into, the cold water of pouring into ring channel 9 prepares for follow-up atomizing dust fall, the cold water of pouring into in spiral passage 58 can absorb the heat that motor 51 transmitted to heat dissipation sheetmetal 57, thereby improve motor 51's radiating effect.

As an embodiment of the present invention, as shown in fig. 2 and 6, the transmission mechanism 7 includes a transmission rod 71, a sealing bearing 72, a rotating disk 73, a hinge shaft 74, a crank connecting rod 75 and a piston 76, a front end of the transmission rod 71 is fixedly connected to a central position of a rear side of the driving pulley 52, a rear end of the transmission rod 71 passes through a front side of the intermediate water tank 84 and is fixedly connected to a central position of a front side of the rotating disk 73 inside the intermediate water tank 84, the sealing bearing 72 is disposed at a contact position of the transmission rod 71 and the intermediate water tank 84, the hinge shaft 74 is fixedly connected to an upper end of the rear side of the rotating disk 73, a lower end of the crank connecting rod 75 is hinged to the hinge shaft 74, an upper end of the crank connecting rod 75 is fixedly connected to a central position of a lower end of the piston 76, and the piston 76 is disposed on the inside the intermediate water tank 84.

During operation, based on the above embodiment, the motor 51 drives the driving pulley 52 to rotate so as to drive the transmission rod 71 to rotate, the transmission rod 71 drives the turntable 73 to rotate so as to drive the crank connecting rod 75 to rotate eccentrically, and further drive the piston 76 to move up and down, when the piston 76 moves downward, the water pressure at the lower side of the piston 76 is increased, at this time, part of cold water in the middle water tank 84 is input into the annular pipe 9 through the primary water pipe 85, the other part of cold water is input into the spiral channel 58 through the secondary water pipe 86, and the cold water entering the spiral channel 58 can absorb part of heat generated by the motor 51, so that the heat dissipation effect of the motor 51 is improved.

As an embodiment of the present invention, as shown in fig. 3, 4 and 5, an annular tube 9 is fixedly connected to an air outlet inside the air duct 2, an atomizing nozzle 91 is fixedly connected to an inner side wall of the annular tube 9 at an equal annular distance, and the primary water pipe 85 is communicated with an upper end of the annular tube 9.

During operation, based on the above embodiment, a part of cold water in the middle water tank 84 enters the annular pipe 9 through the first-stage water pipe 85 to obtain cold water, and the cold water is atomized and sprayed out through the atomizing nozzle 91, and along with the continuous consumption of the cold water in the middle water tank 84, the cold water in the water storage tank 81 is continuously supplemented with water through the water supplementing pipe 82, so that the cold water atomized and sprayed out is continuous, and the filtered air is continuously combined with the atomized cold water, so that dust in the air is adsorbed by water drops and settled, the dust settling effect is improved, the dust is prevented from flying around and being sucked into the lungs by workers, and damage to physical and mental health of the workers is avoided.

As an embodiment of the present invention, as shown in fig. 3 and 6, a temporary water storage tank 11 is fixedly connected to the front side of the upper end surface of the air duct 2, the water outlet end of the spiral channel 58 is communicated with a water outlet pipe 12, and the water outlet pipe 12 is communicated with the lower end of the rear side surface of the temporary water storage tank 11.

During operation, based on the above embodiment, when the crank connecting rod 75 drives the piston 76 to move upwards, the check valve 83 at the water outlet of the water replenishing pipe 82 is opened, so that the cold water in the water storage tank 81 is replenished into the middle water tank 84 through the water replenishing pipe 82, thereby avoiding insufficient water supply, the cold water entering the spiral channel 58 enters the temporary storage water tank 11 through the water outlet pipe 12 after absorbing the heat generated by the motor 51, when the piston 76 rises, the cold water in the temporary storage water tank 11 is absorbed into the spiral channel 58 to cool the motor 51 again, and repeatedly, the annular pipe 9 continuously sprays atomized cold water to combine with the dust in the air, thereby improving the dust settling effect, the motor 51 is cooled circularly, and the heat dissipation effect of the motor 51 is improved.

The working principle is as follows: the bottom plate 1 is fixed on a working surface, the motor 51 is started, the motor 51 can generate vibration force when working, so as to drive the air duct 2 to generate vibration, the vibration force received by the air duct 2 is transmitted to the upper support column 31, the vibration force received by the upper support column 31 is transmitted to the movable rod 33, the movable rod 33 moves towards the cylindrical hole 34 at the upper end of the lower support column 35 under the buffer action of the damping spring 32, so as to reduce the vibration force of the fan, thereby improving the stability of the fan, the motor 51 drives the driving pulley 52 to rotate, the driving pulley 52 drives the driven pulley 53 to rotate through a belt, the driven pulley 53 drives the fan blades 55 to rotate through the transmission shaft 54, the motor 51 is fixedly connected with the outer surface of the upper end of the air duct 2, the sound insulation cover 56 is covered outside the motor 51, so as to reduce the noise generated in the working process of the motor 51, the transmission shaft 54 is movably connected with the fixed seat 61, the fixed seat 61 is fixedly connected with the center position of the upper end surface of the transverse plate 6, the central position of the lower end surface of the transverse plate 6 is fixedly connected with the reinforcing plate 62 with a V-shaped structure, so that the stability of the fixing seat 61 is improved, the stability of the fan blade 55 is further ensured, meanwhile, the circulation space of air inside the air duct 2 is increased, the noise generated by air turbulence is reduced, the sound insulation layer 23 is fixedly connected on the inner side wall of the air duct 2, the noise generated in the working process of the fan blade 55 is reduced, the protective plate 21 at the front side of the air duct 2 can protect the fan blade 55, the filter screen plate 22 at the rear side of the air duct 2 can filter dust floating in the air, so as to prevent larger raised dust from being generated, the heat dissipation metal sheet 57 at the outer surface of the motor 51 can absorb the heat generated by the motor 51, the motor 51 is cooled, the motor 51 drives the driving belt wheel 52 to rotate so as to drive the driving transmission rod 71 to rotate, the transmission rod 71 drives the turntable 73 to rotate so as to drive the crank connecting rod 75 to rotate eccentrically, and further drive the piston 76 to move up and down, when the piston 76 moves downwards, the water pressure at the lower side of the piston 76 is increased, at this time, part of cold water in the intermediate water tank 84 is input into the annular pipe 9 through the primary water pipe 85, the other part of cold water is input into the spiral channel 58 through the secondary water pipe 86, the cold water entering the spiral channel 58 can absorb part of heat generated by the motor 51, so that the heat dissipation effect of the motor 51 is improved, part of cold water in the intermediate water tank 84 enters the annular pipe 9 through the primary water pipe 85 to obtain cold water, the cold water is atomized and sprayed out through the atomizing nozzle 91, as the cold water in the intermediate water tank 84 is continuously consumed, the cold water in the water storage tank 81 is continuously supplemented into the intermediate water tank 84 through the water supplementing pipe 82, so that the cold water source sprayed out through atomization is continuous, the filtered air is continuously combined with the atomized cold water, and dust in the air is adsorbed by water droplets to be settled, so that the dust settling effect is improved, prevent that the dust from flying everywhere and being inhaled in the lung by the workman, avoid causing the harm to workman's physical and mental health, when crank connecting rod 75 drives piston 76 rebound, the check valve 83 of moisturizing pipe 82 delivery port position is opened, thereby supply the cold water of water storage box 81 to in middle water tank 84 through moisturizing pipe 82, avoid supplying water inadequately, the cold water that gets into spiral passage 58 gets into in keeping in water tank 11 through outlet pipe 12 after having absorbed the heat that motor 51 produced, the cold water in keeping in water tank 11 is inhaled again and is cooled down motor 51 in spiral passage 58 when piston 76 rises, so relapse, the combination of the dust in the atomized cold water of continuous blowout of annular tube 9 and the air, improve the dust fall effect, motor 51 obtains the circulation cooling, improve the radiating effect of motor 51.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.