CN112901523A

CN112901523A - Axial flow fan

Info

Publication number: CN112901523A
Application number: CN202110211547.6A
Authority: CN
Inventors: 梁文锋; 干宏伟
Original assignee: Shaoxing Shangyu Yucai Fan Manufacturing Co ltd
Current assignee: Shaoxing Shangyu Yucai Fan Manufacturing Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-06-04
Anticipated expiration: 2041-02-25
Also published as: CN112901523B

Abstract

The invention relates to the technical field of wind direction change of a fan, in particular to an axial flow fan which comprises an axial flow main body, wherein the axial flow main body comprises a shell, a double-shaft motor is arranged in the shell, supporting rods are arranged at two ends of the double-shaft motor, the other end of each supporting rod is connected with the inner wall of the shell, filtering separation nets are arranged at two sides far away from the double-shaft motor in the shell, and rotating shafts are arranged at output ends at two sides of the double-shaft motor. According to the invention, through the arrangement of the wind shield, the rotating gear, the rodent, the movable rod, the rotating disk, the pulling rod and the moving groove, a worker moves the pulling rod in the moving groove, so that the deviation direction of the wind shield is changed, the wind direction generated in the rotating process of the rotating fan is changed, and the situation that the environment at the wind opening is changed under the condition that the direction of the wind force is unchanged all the time and the surrounding environment is influenced is avoided.

Description

Axial flow fan

Technical Field

The invention relates to the technical field of wind direction change of fans, in particular to an axial flow fan.

Background

The axial-flow fan is relatively fixed in position, can move air and can form airflow in the same direction as the axis of the fan blade, for example, an electric fan, an air conditioner outer fan is an axial-flow type running fan, and is called axial-flow type because air flows parallel to the axis of the fan, and the axial-flow type fan is generally used in occasions with high flow requirements and low pressure requirements and has wide application.

The traditional axial flow fan has an imperfect structure, adopts the fan blades with fixed angles, so that the angle of the fan blades cannot be adjusted in real time to control the output flow of the axial flow fan, and suddenly closes the axial flow fan under the condition that the air pressure on the operation side of the axial flow fan is large, so that the phenomenon of gas backflow is easily caused, for example, in the axial flow fan disclosed in CN202010658773.4, through the arrangement of the fixed plate and the movable plate, the threaded sleeve not only can assist in adjusting the distance and the angle of the swinging blades but also can drive the movable plate to move, and the opening and closing adjustment of the movable plate and the fixed plate can effectively change the ventilation state of the axial flow fan, and in an emergency situation, the problem of axial flow fan backflow can be avoided by electrically locking air, but the mode of directly changing the distance and the angle of the fan blades enables workers to change the wind direction in time in the operation process of the fan, so that the inconvenience is high, and the service life, therefore, an axial flow fan needs to be designed to solve the above problems.

Disclosure of Invention

The invention aims to provide an axial flow fan, which aims to solve the problems that in the background art, the distance and the angle of fan blades are directly changed, so that a worker can timely change the wind direction in the running process of the fan, the fan is inconvenient to use, and the service life of the device can be greatly shortened due to the change of the fan blades.

In order to achieve the purpose, the invention provides the following technical scheme: an axial flow fan comprises an axial flow main body, wherein the axial flow main body comprises a shell, a double-shaft motor is arranged inside the shell, supporting rods are arranged at two ends of the double-shaft motor, the other end of each supporting rod is connected with the inner wall of the shell, filtering separation nets are arranged on two sides of the double-shaft motor inside the shell, rotating shafts are arranged on output ends of two sides of the double-shaft motor, one ends of the rotating shafts, far away from the double-shaft motor, are connected with the filtering separation nets, a rotating fan is movably arranged on one side, close to the double-shaft motor, of the rotating shafts, a wind shield is uniformly arranged at one end, far away from the double-shaft motor, inside the shell, a rotating gear is arranged at the top end of the wind shield, the rotating gear extends into the shell, rotating rods are arranged at two ends of, and rodent and rotating gear intermeshing, the second movable block is all installed at the both ends that the rotary rod is close to biax motor one side, the movable rod is all installed to one side that the rotary rod was kept away from to the second movable block, two the rotary disk is installed to one side that the deep bead was kept away from to the movable rod, the top fixed mounting of rotary disk has the pulling rod, the shifting chute has been seted up on the top of casing, and the pulling rod extends to the outside on casing top through the shifting chute, the casing internally mounted of axis of rotation one side has clean mechanism, the axis of rotation surface between rotating fan and the biax motor cup joints and installs damper.

Preferably, first movable block is all installed to the one end that the rotary rod both sides are close to each other, install the connecting rod between the first movable block.

Preferably, clean mechanism is including relapseing the lead screw, relapse lead screw, two are all installed at both ends about the casing of biax motor both sides is inside all install rotatory ring between the relapse lead screw, rotatory flabellum is all evenly installed to rotatory ring's surface, the relapse lead screw surface of rotatory ring both sides all cup joints and installs the movable block, the movable block is close to one side of filtering the screen and all installs the telescopic link, and installs two telescopic links on each movable block, one side that the movable block was kept away from to the telescopic link is installed and is pasted the board, the surface of telescopic link all cup joints and installs and cup joint the spring, and cup joint the both ends of spring and be connected with movable block and board respectively, the both ends of pasting board all slidable mounting have the movable plate, one side that the movable plate.

Preferably, the sliding block is all installed to one side that the movable plate is close to the telescopic link, the sliding tray has all been seted up to one side that the laminating inboard is close to the sliding block, and the sliding block extends to the inside of sliding tray.

Preferably, the second cleaning sponge is installed on one side of the attaching plates at the upper end and the lower end of the moving plate, and the first cleaning sponge and the second cleaning sponge are attached to the filtering separation net.

Preferably, damper includes the cup joint ring, the axis of rotation surface between rotating fan and the double-shaft motor all cup joints and installs the cup joint ring, the equal fixed mounting in upper and lower both ends of cup joint ring has the stiffener, the equal fixed mounting in upper and lower both ends of stiffener has supplementary piece, shells inner wall all has seted up round movable groove near one side of supplementary piece, and supplementary piece extends to the inside in movable groove, the both sides movable mounting of supplementary piece has the removal wheel.

Preferably, the slider is all installed at the both ends of removing the wheel, the spout has all been seted up to one side that supplementary inside of block is close to the slider, and the slider extends to the inside of spout, the installing frame is all installed to one side that the slider is close to each other, the installing frame is kept away from one side that removes the wheel and is all evenly installed the laminating spring, and the other end of laminating spring all is connected with the inner wall of supplementary block.

Preferably, the auxiliary block is provided with an installation groove on one side away from each other, and the inside of the installation groove is movably provided with a friction roller.

Compared with the prior art, the invention has the beneficial effects that:

1. through being provided with the deep bead, the swing pinion, the rodent, the movable rod, the rotary disk, the pull rod and shifting chute, the staff removes in the shifting chute through with the pull rod, thereby let the rotary disk rotate, drive two movable rods and remove to one side, make with this and drive the swing pinion with swing pinion intermeshing's rotary rod and remove to one side, thereby the skew direction that lets the deep bead changes, with this make the rotatory in-process produced wind direction of rotating fan change, with this coming the in-process of preventing device at the ventilation, under the inconvenient condition of wind direction of air outlet, great wind-force can lead to the fact the condition of influence to the surrounding environment and take place.

2. Through being provided with clean mechanism, when axial compressor main part starts, the inside air of circulating of casing will make rotatory flabellum drive rotatory ring and rotate, with this let cup joint the removal that the movable block on the lead screw that relapses carries on from top to bottom, thereby make things convenient for first clean sponge and the clean sponge of second of installing on laminating board and the movable plate to clean the surface that filters at a distance from the net, thereby avoid filtering and separating the hole that the net surface was seted up and can be blockked up by the dust, thereby make the condition that the ventilation effect of axial compressor main part reduces take place, and the spring that cup joints of installing in laminating board one side, will make second clean sponge and first clean sponge laminate each other between the surface that separates the net with filtering all the time through elastic action, with this clean efficiency that improves first clean sponge and second.

3. Through being provided with the stiffener, supplementary piece and activity groove, at the rotatory in-process of axis of rotation, the stiffener that carries out the activity in the casing inside that both sides were installed will play the effect of support to this lets the axis of rotation reduce the condition that the axis of rotation of length overlength can take place to rock at rotatory in-process, and reduce with this and cup joint the rotatory fan in the axis of rotation and can send huge abnormal sound at rotatory in-process, with this life who prolongs the axial compressor main part.

4. Through being provided with removal wheel, installing frame and laminating spring, through the elasticity effect of laminating spring, make can laminating more between the both sides of supplementary piece and the inner wall in activity groove to this reduces supplementary piece and removes the in-process and can reduce the condition that supplementary piece can appear rocking in the activity groove, thereby makes the stiffener better to the support effect of axis of rotation.

Drawings

FIG. 1 is a schematic sectional elevation view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic top sectional view of a wind deflector according to the present invention;

FIG. 4 is a schematic top sectional view of the cleaning mechanism of the present invention;

FIG. 5 is a schematic side view of a bonding plate structure according to the present invention;

FIG. 6 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 7 is an enlarged view of a portion of the structure shown at B in FIG. 1 according to the present invention;

fig. 8 is a partially enlarged view of the structure at C in fig. 7 according to the present invention.

In the figure: 100. an axial flow body; 110. a housing; 111. a double-shaft motor; 112. a support bar; 113. a rotating shaft; 114. a rotating fan; 115. filtering the separation net; 116. a wind deflector; 117. a rotating gear; 118. rotating the rod; 119. a rodent; 120. a first movable block; 121. a connecting rod; 122. a second movable block; 123. a movable rod; 124. rotating the disc; 125. pulling a rod; 126. a moving groove; 200. a cleaning mechanism; 210. a rotating ring; 211. rotating the fan blades; 212. a moving block; 213. a telescopic rod; 214. sleeving a spring; 215. attaching a plate; 216. moving the plate; 217. repeating the screw rod; 218. a slider; 219. a sliding groove; 220. a first cleaning sponge; 221. a second cleaning sponge; 300. a damping mechanism; 310. a sleeving connection ring; 311. a reinforcing bar; 312. an auxiliary block; 313. a moving wheel; 314. a slider; 315. a chute; 316. installing a frame; 317. fitting a spring; 318. a movable groove; 319. mounting grooves; 320. rubbing the rollers.

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. 1-8, an embodiment of the present invention:

an axial flow fan comprises an axial flow main body 100, the axial flow main body 100 comprises a shell 110, a double-shaft motor 111 is arranged inside the shell 110, support rods 112 are arranged at two ends of the double-shaft motor 111, the other end of each support rod 112 is connected with the inner wall of the shell 110, filter screens 115 are arranged at two sides of the shell 110 far away from the double-shaft motor 111, rotating shafts 113 are arranged at output ends of two sides of the double-shaft motor 111, one ends of the rotating shafts 113 far away from the double-shaft motor 111 are connected with the filter screens 115, rotating fans 114 are movably arranged at one sides of the rotating shafts 113 close to the double-shaft motor 111, wind shields 116 are uniformly arranged at one ends of the shell 110 far away from the double-shaft motor 111, rotating gears 117 are arranged at top ends of the wind shields 116, the rotating gears 117 extend to the inside of the shell 110, rotating rods 118 are arranged at two ends of the, the tooth 119 is engaged with the rotating gear 117, the two ends of the rotating rod 118 close to each other are both provided with a first movable block 120, a connecting rod 121 is arranged between the first movable blocks 120, the two ends of the rotating rod 118 close to one side of the biaxial motor 111 are both provided with a second movable block 122, one side of the second movable block 122 far from the rotating rod 118 is both provided with a movable rod 123, one sides of the two movable rods 123 far from the wind shield 116 are provided with a rotating disc 124, the top end of the rotating disc 124 is fixedly provided with a pulling rod 125, the top end of the shell 110 is provided with a moving groove 126, the pulling rod 125 extends to the outer side of the top end of the shell 110 through the moving groove 126, the inside of the shell 110 at one side of the rotating shaft 113 is provided with a cleaning mechanism 200, the outer surface of the rotating shaft 113 between the rotating fan 114 and the biaxial motor, therefore, the rotating disc 124 rotates to drive the two movable rods 123 to move to one side, so that the rotating rod 118 meshed with the rotating gear 117 drives the rotating gear 117 to move to one side, thereby changing the offset direction of the wind shield 116, so that the wind direction generated in the rotating process of the rotating fan 114 is changed, and the situation that the wind direction of the wind outlet is inconvenient in the ventilating process of the device is prevented, and the influence of larger wind force on the surrounding environment is caused is prevented.

Further, the cleaning mechanism 200 includes a repeated screw rod 217, the repeated screw rods 217 are mounted at the upper and lower ends inside the housing 110 at both sides of the dual-axis motor 111, a rotating ring 210 is mounted between the two repeated screw rods 217, rotating fan blades 211 are uniformly mounted on the outer surface of the rotating ring 210, moving blocks 212 are sleeved on the outer surfaces of the repeated screw rods 217 at both sides of the rotating ring 210, a telescopic rod 213 is mounted at one side of each moving block 212 close to the filtering screen 115, two telescopic rods 213 are mounted on each moving block 212, a fitting plate 215 is mounted at one side of each telescopic rod 213 far from the moving block 212, a sleeve spring 214 is sleeved on the outer surface of each telescopic rod 213, both ends of each sleeve spring 214 are respectively connected with the moving block 212 and the fitting plate 215, 216 is slidably mounted at both ends of the fitting plate 215, and, the side of the fit plate 215 close to the sliding block 218 is provided with a sliding groove 219, the sliding block 218 extends into the sliding groove 219, the side of the moving plate 216 far from the sliding block 218 is provided with a first cleaning sponge 220, the side of the fit plate 215 at the upper and lower ends of the moving plate 216 is provided with a second cleaning sponge 221, and the first cleaning sponge 220 and the second cleaning sponge 221 are both fitted with the filter screen 115, when the axial flow main body 100 is started, the rotating fan blades 211 are driven by the air circulating inside the casing 110 to rotate the rotating ring 210, so that the moving block 212 sleeved on the reciprocating screw rod 217 moves up and down, thereby facilitating the first cleaning sponge 220 and the second cleaning sponge 221 installed on the fit plate 215 and the moving plate 216 to clean the surface of the filter screen 115, and preventing the pores opened on the surface of the filter screen 115 from being blocked by dust, therefore, the ventilation and air-extraction effect of the axial flow main body 100 is reduced, and the sleeve spring 214 installed on one side of the fitting plate 215 can make the second cleaning sponge 221 and the first cleaning sponge 220 always fit with the surface of the filtering separation net 115 through the elastic action, so as to improve the cleaning efficiency of the first cleaning sponge 220 and the second cleaning sponge 221.

Further, the damping mechanism 300 includes a sleeve ring 310, the outer surface of the rotating shaft 113 between the rotating fan 114 and the dual-axis motor 111 is sleeved with the sleeve ring 310, the upper and lower ends of the sleeve ring 310 are fixedly installed with reinforcing rods 311, the upper and lower ends of the reinforcing rods 311 are fixedly installed with auxiliary blocks 312, one side of the inner wall of the casing 110 near the auxiliary blocks 312 is provided with a circle of movable grooves 318, the auxiliary blocks 312 extend into the movable grooves 318, two sides of the auxiliary blocks 312 are movably installed with movable wheels 313, one side of the auxiliary blocks 312 away from each other is provided with installation grooves 319, the inside of the installation grooves 319 is movably installed with friction rollers 320, during the rotation of the rotating shaft 113, the reinforcing rods 311 installed at two sides and moving inside the casing 110 will support the rotating shaft 113, thereby reducing the situation that the rotating shaft 113 with an excessively long length will shake during the rotation of the rotating shaft 113, and thus, the great abnormal noise generated by the rotating fan 114 sleeved on the rotating shaft 113 in the rotating process is reduced, thereby prolonging the service life of the axial flow main body 100.

Furthermore, both ends of the moving wheel 313 are provided with sliders 314, one side of the inside of the auxiliary block 312, which is close to the sliders 314, is provided with a sliding groove 315, the sliders 314 extend into the sliding groove 315, one side of the sliders 314, which is close to each other, is provided with a mounting frame 316, one side of the mounting frame 316, which is far away from the moving wheel 313, is provided with a bonding spring 317 uniformly, the other end of the bonding spring 317 is connected with the inner wall of the auxiliary block 312, through the elastic force action of the bonding spring 317, the two sides of the auxiliary block 312 can be bonded with the inner wall of the moving groove 318 more, and the auxiliary block 312 is supported, so that the situation that the auxiliary block 312 shakes in the moving groove 318 during the moving process of the auxiliary block 312 is reduced, and the supporting effect of the reinforcing rod 311 on the rotating shaft 113 is better.

The working principle is as follows: when the staff uses axial compressor main part 100 to exhaust, the staff is through starting double-shaft motor 111, thereby it rotates to let both sides cup joint the rotating fan 114 on axis of rotation 113, thereby it starts the circulation to make the inside air of casing 110, thereby accomplish the carminative effect of ventilating, double-shaft motor 111's work efficiency is great, make the wind-force of casing 110 air outlet great, under the unable circumstances that changes of wind direction, there is certain potential safety hazard, consequently the staff accessible moves pull rod 125 in shifting chute 126, thereby it moves to one side to let movable rod 123 drive two rotary rods 118, with this make and the rotatory gear 117 that the rodent 119 intermeshing installed on rotary rod 118 drive deep bead 116 and shift, with this wind direction that lets casing 110 air outlet change.

When a worker uses the housing 110 to ventilate a place with much dust, such as a mine cave or a cave, the filtering separation net 115 for shielding the dust is provided with a large amount of dust, so that the dust blocks the gap on the filtering separation net 115, the rotating housing 110 in operation has large wind force, so that the worker does not clean the axial flow main body 100 up and down in the operation process, and the rotating ring 210 installed at the air inlet and outlet in the housing 110 passes through the rotating fan blades 211 on the outer surface, so that when the axial flow main body 100 is started to circulate air in the housing 110, the rotating ring rotates along with the wind force, so that the reciprocating screw rods 217 installed at the upper and lower ends of the rotating ring 210 rotate together, and therefore, two moving blocks 212 sleeved on the reciprocating screw rods 217 move up and down repeatedly through the reciprocating threads formed on the reciprocating screw rods 217, therefore, the first cleaning sponge 220 and the second cleaning sponge 221 which are mutually attached to the filtering separation net 115 through the elastic force of the sleeve spring 214 are used for cleaning dust on the filtering separation net 115, so that gaps on the original filtering separation net 115 are increased, the ventilation and exhaust efficiency of the axial flow main body 100 is improved, and the moving plate 216 mounted on the attachment plate 215 can contract towards the interior of the attachment plate 215, so that the situation that the moving plate 216 collides with narrow positions on the upper side and the lower side of the shell 110 in the up-and-down moving process of the attachment plate 215, the moving plate 216 is bent and damaged is avoided, a worker needs to detach the shell 110 to maintain the moving plates 215 and 216, and the situation that the working efficiency of the axial flow main body 100 is reduced.

The length of the rotating shaft 113 installed on both sides of the dual-shaft motor 111 is too high during the operation of the axial-flow main body 100, so that the rotating shaft 113 will sway during the operation of the dual-shaft motor 111, and the rotating shaft 113 will drive the rotating fan 114 to sway during the rotation of the rotating fan 114 dragged by the rotating shaft 113, so that the axial-flow main body 100 will sound as a whole during the air-extracting and ventilating process of the axial-flow main body 100, which affects the normal operation of the axial-flow main body 100, therefore, when a worker assembles the axial-flow main body 100, the plurality of sleeving rings 310 sleeved on the rotating fan 114 will pass through the reinforcing rod 311 rotating inside the casing 110, so as to provide a new supporting point for the rotating shaft 113, and the auxiliary block 312 installed on one side of the reinforcing rod 311 and sliding inside the casing 110, and the friction roller 320 installed on the auxiliary block 312 and movable will facilitate the auxiliary block 312 to move in the movable groove 318, the moving wheel 313 mounted on the auxiliary block 312 is attached to the inner wall of the movable groove 318 by the elastic force of the attaching spring 317, so as to support the auxiliary block 312 moving in the movable groove 318, thereby reducing the gap of the auxiliary block 312 moving in the movable groove 318 during the movement of the auxiliary block 312 in the movable groove 318, so that the movement of the auxiliary block 312 in the movable groove 318 is more stable, thereby enabling the reinforcing rod 311 to support the rotating shaft 113 and improving the stability of the rotating shaft 113 during the rotation.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An axial fan comprising an axial main body (100), characterized in that: the axial flow main body (100) comprises a shell (110), a double-shaft motor (111) is arranged inside the shell (110), supporting rods (112) are arranged at two ends of the double-shaft motor (111), the other end of each supporting rod (112) is connected with the inner wall of the shell (110), filtering separation nets (115) are arranged on two sides of the shell (110) far away from the double-shaft motor (111), rotating shafts (113) are arranged on output ends of two sides of the double-shaft motor (111), one ends of the rotating shafts (113) far away from the double-shaft motor (111) are connected with the filtering separation nets (115), rotating fans (114) are movably arranged on one sides of the rotating shafts (113) close to the double-shaft motor (111), wind shields (116) are uniformly arranged at one ends of the shell (110) far away from the double-shaft motor (111), and rotating gears (117) are arranged at the top ends of the wind shields, and rotating gear (117) extend to the inside on casing (110), rotating rod (118) are all installed at the both ends of rotating gear (117), rodent (119) are all evenly installed to one side that rotating rod (118) are close to each other, and rodent (119) and rotating gear (117) intermeshing, second movable block (122) are all installed to the both ends that rotating rod (118) are close to biax motor (111) one side, movable rod (123) are all installed to one side that rotary rod (118) were kept away from in second movable block (122), two rotary disk (124) are installed to one side that deep bead (116) were kept away from in movable rod (123), the top fixed mounting of rotary disk (124) has pulling rod (125), moving groove (126) have been seted up on the top of casing (110), and pulling rod (125) extend to the outside on casing (110) top through moving groove (126), the cleaning mechanism (200) is installed inside the shell (110) on one side of the rotating shaft (113), and the damping mechanism (300) is installed on the outer surface of the rotating shaft (113) between the rotating fan (114) and the double-shaft motor (111) in a sleeved mode.

2. The axial flow fan of claim 1, wherein: first movable block (120) are all installed to the one end that both sides are close to each other of rotary rod (118), install connecting rod (121) between first movable block (120).

3. The axial flow fan of claim 1, wherein: the cleaning mechanism (200) comprises a repeated lead screw (217), the repeated lead screw (217) is installed at the upper end and the lower end of the interior of a shell (110) on the two sides of the double-shaft motor (111), two rotating rings (210) are installed between the repeated lead screws (217), rotating fan blades (211) are evenly installed on the outer surfaces of the rotating rings (210), moving blocks (212) are installed on the outer surfaces of the repeated lead screws (217) on the two sides of the rotating rings (210) in a sleeved mode, telescopic rods (213) are installed on one sides, close to the filtering separation net (115), of the moving blocks (212), two telescopic rods (213) are installed on each moving block (212), a jointing plate (215) is installed on one side, far away from the moving blocks (212), of the telescopic rods (213), the outer surfaces of the telescopic rods (213) are installed with sleeved springs (214), and the two ends of the sleeved springs (214, two ends of the laminating plate (215) are provided with moving plates (216) in a sliding mode, and one sides, far away from the sliding blocks (218), of the moving plates (216) are provided with first cleaning sponges (220).

4. The axial flow fan of claim 3, wherein: sliding blocks (218) are installed on one sides, close to the telescopic rods (213), of the moving plates (216), sliding grooves (219) are formed in one sides, close to the sliding blocks (218), of the interior of the laminating plate (215), and the sliding blocks (218) extend to the interior of the sliding grooves (219).

5. The axial flow fan of claim 3, wherein: second cleaning sponges (221) are mounted on one sides of the laminating plates (215) at the upper end and the lower end of the moving plate (216), and the first cleaning sponges (220) and the second cleaning sponges (221) are mutually laminated with the filtering separation net (115).

6. The axial flow fan of claim 1, wherein: damper (300) are including cup jointing ring (310), axis of rotation (113) surface between rotating fan (114) and biax motor (111) all cup joints and installs cup jointing ring (310), the upper and lower both ends of cup jointing ring (310) are fixed mounting all has stiffener (311), the upper and lower both ends of stiffener (311) are fixed mounting all has supplementary piece (312), round activity groove (318) have all been seted up to one side that casing (110) inner wall is close to supplementary piece (312), and supplementary piece (312) extend to the inside in activity groove (318), the both sides movable mounting of supplementary piece (312) has removal wheel (313).

7. The axial flow fan of claim 6, wherein: slider (314) are all installed at the both ends of removing wheel (313), spout (315) have all been seted up to the inside one side that is close to slider (314) of supplementary piece (312), and slider (314) extend to the inside of spout (315), install frame (316) are all installed to the one side that slider (314) are close to each other, laminating spring (317) are all evenly installed to one side that removes wheel (313) is kept away from in installing frame (316), and the other end of laminating spring (317) all is connected with the inner wall of supplementary piece (312).

8. The axial flow fan of claim 6, wherein: mounting grooves (319) have all been seted up to one side that supplementary piece (312) kept away from each other, the inside of mounting groove (319) all movable mounting have friction roller (320).