Inoculation room purification fan

Abstract

The utility model provides a purification fan for an inoculation room, belongs to the technical field of purification fans for edible mushroom inoculation rooms, and aims to solve the problems that the process of taking out a filter screen from the inside of a purification fan at a higher position and manually cleaning the filter screen is inconvenient and tedious, the cleaning efficiency of the filter screen is influenced, and the cleaning cost is reduced. Comprising a progressive purification fan, a rectangular shell, a high-rotating-speed fan, a coarse filter screen, an ash removal mechanism and a cleaning mechanism. The rectangular shells are divided into two groups, and the two groups of rectangular shells are respectively arranged on the two sides of the progressive purification fan; the high-rotating-speed fan is arranged in the progressive purification fan; the coarse filter screen is arranged in the progressive purification fan; the ash removal mechanism is arranged in the progressive purification fan; and the cleaning mechanism is arranged in the progressive purification fan. The air filter has the advantages that the air filtering effect is improved, the complexity and inconvenience of manual cleaning of the coarse filter screen are avoided, and the cleaning efficiency of the coarse filter screen is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of purification fans in edible fungus inoculation rooms, and more specifically, particularly relates to a purification fan in an inoculation room. Background Art

[0002] Edible fungi are aerobic, heterotrophic organisms, that is, aerobic fungi. When edible fungi are cultivated in the inoculation room, air circulation must be ensured, and high requirements are placed on air quality. Therefore, purification fans are usually installed in the edible fungi inoculation room. Existing purification fans are usually composed of fans, filters, shells, etc. When in use, the fan blows outside air into the edible fungi inoculation room. Before the air enters the edible fungi inoculation room, the filter will filter out impurities and pollutants in the air to achieve the purpose of purifying the air.

[0003] The existing application number is: CN202320336321.3. The utility model discloses a purification air supply fan, which comprises: a shell, an air inlet pipe and an air outlet pipe are arranged in the shell, a fan and a first activated carbon filter device are arranged between the air inlet pipe and the air outlet pipe, the first activated carbon filter device comprises a shell, an activated carbon filter plate and a cover plate, one end of the shell is connected with the air inlet pipe, and the other end of the shell is connected with the fan through a first connecting pipe, a slide groove is arranged in the shell, a slider is arranged on the activated carbon filter plate, the slider slides with the slide groove, a threaded hole is arranged on the shell, a through hole is arranged on the cover plate, the cover plate is fixedly connected with the shell through the through hole, the threaded hole and the bolt, and a rotating door is arranged on the shell. Compared with the utility model, the shell, the activated carbon filter plate, the cover plate, the slide groove, the slider, the threaded hole and the through hole are arranged, and the outer frame can be slid out of the slide groove of the shell by unscrewing the threaded hole and the bolts in the through hole, so as to facilitate replacement.

[0004] Based on the above, the filter achieves the purpose of purifying the air by filtering out impurities and pollutants in the air. After the purification fan has been used for a period of time, impurities and pollutants on the filter will accumulate in large quantities. In order to prevent impurities and pollutants from clogging the filter holes on the filter, the filter needs to be removed from the purification fan and cleaned manually. The purification fan is generally installed above the edible fungus inoculation room and is installed at a higher position. Therefore, the process of removing the filter from the purification fan at a higher position and manually cleaning it is inconvenient and cumbersome, affecting the cleaning efficiency of the filter. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an inoculation room purification fan to solve the problem that the existing process of removing the filter from the inside of the purification fan at a higher position and manually cleaning it is inconvenient and cumbersome, which affects the cleaning efficiency of the filter.

[0006] The purpose and effect of the inoculation room purification fan of the utility model are achieved by the following specific technical means:

[0007] A purification fan for an inoculation room, comprising a progressive purification fan, a shutter fan shaft, fan blades, a rectangular housing, a high-speed fan, a coarse-effect filter screen, a medium-effect filter screen, a gas-phase purification screen, a high-efficiency filter screen, a servo motor, a dust removal mechanism and a cleaning mechanism;

[0008] The progressive purification fan is provided with two sets of bearing seats inside;

[0009] There are a plurality of groups of louver fan shafts, and the plurality of louver fan shafts are rotatably connected to one end of the progressive purification fan;

[0010] There are a plurality of groups of fan blades, and the plurality of groups of fan blades are respectively fixedly connected to the outer peripheries of the plurality of groups of louver fan shafts;

[0011] There are two groups of rectangular shells, which are respectively arranged on both sides of the progressive purification fan;

[0012] The high-speed fan is fixedly connected inside the progressive purification fan;

[0013] The coarse filter is fixedly connected to the inside of the progressive purification fan, and the coarse filter can filter out pollutants such as hair, lint and dust;

[0014] The medium-efficiency filter is fixedly connected to the inside of the progressive purification fan, and the medium-efficiency filter can filter out pollutants such as pollen, fine hair and soot;

[0015] The gas phase purification net is fixedly connected to the inside of the progressive purification fan, and the gas phase purification net can filter out pollutants such as formaldehyde, benzene and TVOC;

[0016] The high-efficiency filter is fixedly connected to the inside of the progressive purification fan, and the high-efficiency filter can effectively filter pollutants such as PM2.5;

[0017] The servo motor is fixedly connected inside the progressive purification fan;

[0018] The dust cleaning mechanism is arranged inside the progressive purification fan;

[0019] The cleaning mechanism is arranged inside the progressive purification fan.

[0020] Further, the cleaning mechanism includes a reciprocating screw and a first guide shaft;

[0021] The reciprocating screw is rotatably connected to the inside of two sets of bearing seats inside the progressive purification fan, and the reciprocating screw has two thread grooves with the same pitch and opposite rotation directions, and a transition curve is provided between the two thread grooves;

[0022] The first guide shaft is fixedly connected to the side surfaces of two groups of bearing seats inside the progressive purification fan.

[0023] Furthermore, the cleaning mechanism also includes a wind wheel and a nut block;

[0024] The wind wheel is fixedly connected to the outer periphery of one end of the reciprocating screw;

[0025] The nut block is threadedly connected to the outer periphery of the reciprocating screw, the nut block and the reciprocating screw form a screw structure, and the nut block slides on the outer periphery of the first guide shaft.

[0026] Furthermore, the cleaning mechanism also includes a scraper, a cleaning strip and an ash receiving trough;

[0027] The scraper is fixedly connected to the side of the nut block, and the scraper is attached to the outer side of the coarse filter screen;

[0028] The cleaning strip is fixedly connected below the nut block;

[0029] The ash receiving trough is fixedly connected to the lower side of the coarse-effect filter screen.

[0030] Furthermore, the dust cleaning mechanism includes a second transmission shaft and a second guide shaft;

[0031] There are eight groups of the second guide shafts, and the eight groups of the second guide shafts are fixedly connected below the progressive purification fan;

[0032] There are two groups of the second transmission shafts, which are rotatably connected to the bottom of the progressive purification fan respectively, and the outer circumferences of the two groups of second transmission shafts are provided with threads.

[0033] Furthermore, the dust cleaning mechanism also includes a rectangular shell and a drawable dust cleaning box;

[0034] There are two groups of lifting boxes, which are respectively threadedly connected to the outer peripheries of the two groups of second transmission shafts, and the two groups of lifting boxes respectively form a screw structure with the two groups of second transmission shafts, and the two groups of lifting boxes respectively slide on the outer peripheries of the eight groups of second guide shafts;

[0035] There are two groups of pull-out dust cleaning boxes, and the two groups of pull-out dust cleaning boxes slide inside the two groups of lifting boxes respectively.

[0036] Furthermore, the dust cleaning mechanism also includes a gear commutator and a first transmission shaft;

[0037] The gear commutator is fixedly connected inside the progressive purification fan, and the gear commutator is provided with a set of input shafts and two sets of output shafts, and a set of input shafts of the gear commutator is coaxially fixedly connected with the motor shaft of the servo motor;

[0038] There are two groups of the first transmission shafts, and the two groups of first transmission shafts are respectively rotatably connected inside the progressive purification fan, and the two groups of first transmission shafts are respectively coaxially fixedly connected with the two groups of output shafts of the gear commutator.

[0039] Furthermore, the dust cleaning mechanism further includes a first bevel gear and a second bevel gear;

[0040] There are two groups of first bevel gears, and the two groups of first bevel gears are respectively fixedly connected to the outer periphery of one end of the two groups of first transmission shafts;

[0041] There are two groups of second bevel gears, which are respectively fixedly connected to the outer periphery of one end of the two groups of second transmission shafts, and the two groups of second bevel gears are respectively meshed with the two groups of first bevel gears.

[0042] Compared with the prior art, the utility model has the following beneficial effects:

[0043] The utility model arranges a coarse-effect filter, a medium-effect filter, a gas-phase purification network and a high-efficiency filter so that the progressive purification fan can continuously deliver outdoor air into the room after being purified by four-fold progressive filtration to form orderly ventilation, thereby keeping the indoor air fresh and clean and improving the air filtering effect.

[0044] The utility model arranges the cleaning mechanism, when the high-speed fan is running, the wind wheel will rotate, and the rotation of the wind wheel causes the scraper and the cleaning strip to reciprocate through the reciprocating screw and the nut block. The reciprocating movement of the scraper will scrape off the dust and other pollutants on the outer side of the coarse-effect filter and drop them into the ash receiving trough, and the reciprocating movement of the cleaning strip will push the dust inside the ash receiving trough to the two sides of the ash receiving trough, so that when the high-speed fan is running, the dust and other pollutants on the outer side of the coarse-effect filter will be scraped off and pushed to the two sides of the ash receiving trough, thereby avoiding the situation that when a lot of dust accumulates on the coarse-effect filter, it will affect the ventilation effect of the progressive purification fan, and avoiding the tediousness and inconvenience of manual cleaning of the coarse-effect filter.

[0045] The utility model provides a dust cleaning mechanism, and the dust on the outer side of the coarse-effect filter screen will fall into the two sets of pull-out dust cleaning boxes after being pushed to the two sides of the dust receiving groove. The servo motor rotates through the transmission cooperation of the gear commutator, the two sets of first transmission shafts, the two sets of first bevel gears, the two sets of second bevel gears and the two sets of second transmission shafts to make the two sets of lifting boxes slide downward. When the two sets of lifting boxes slide downward to the appropriate positions, the two sets of pull-out dust cleaning boxes can be pulled out from the two sets of lifting boxes to clean the dust and other pollutants inside the two sets of pull-out dust cleaning boxes, thereby avoiding the problem that the dust inside the two sets of pull-out dust cleaning boxes is inconvenient to clean when the progressive purification fan is installed at a higher position, and improving the cleaning efficiency of the coarse-effect filter screen.

[0046] The utility model has the function of continuously delivering outdoor air into the room after being purified by four-layer progressive filtration, forming orderly ventilation, improving the effect of filtering the air, avoiding the tedious and inconvenient manual cleaning of the coarse-effect filter, and avoiding the problem of inconvenient cleaning of dust inside the two sets of pull-out dust cleaning boxes when the progressive purification fan is installed in a higher position, thereby improving the cleaning efficiency of the coarse-effect filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0048] Figure 2 It is a structural schematic diagram of a high-speed fan of the utility model.

[0049] Figure 3 It is a schematic diagram of the structure of the coarse-effect filter screen of the utility model.

[0050] Figure 4 It is a schematic diagram of the wind wheel structure of the utility model.

[0051] Figure 5 It is a schematic diagram of the cleaning mechanism structure of the utility model.

[0052] Figure 6 It is a schematic diagram of the structure of the dust cleaning mechanism of the utility model.

[0053] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0054] 1. Progressive purification fan; 101. Louvered fan shaft; 102. Fan blades; 2. Rectangular housing; 3. High-speed fan; 4. Coarse-effect filter; 5. Medium-effect filter; 6. Gas-phase purification net; 7. High-efficiency filter; 8. Wind wheel; 9. Reciprocating screw; 10. First guide shaft; 11. Nut block; 12. Scraper; 13. Cleaning strip; 14. Ash collecting trough; 15. Lifting box; 16. Pull-out ash cleaning box; 17. Servo motor; 18. Gear commutator; 19. First transmission shaft; 20. First bevel gear; 21. Second bevel gear; 22. Second transmission shaft; 23. Second guide shaft. DETAILED DESCRIPTION

[0055] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0056] Embodiment 1:

[0057] As attached Figure 1 To Attachment Figure 5 As shown:

[0058] The utility model provides a purification fan for an inoculation room, comprising a progressive purification fan 1, a shutter fan shaft 101, fan blades 102, a rectangular housing 2, a high-speed fan 3, a coarse-effect filter 4, a medium-effect filter 5, a gas-phase purification net 6, a high-efficiency filter 7, a servo motor 17 and a cleaning mechanism;

[0059] Two sets of bearing seats are arranged inside the progressive purification fan 1;

[0060] There are a plurality of groups of louver fan shafts 101, and the plurality of groups of louver fan shafts 101 are rotatably connected to one end of the progressive purification fan 1;

[0061] There are a plurality of groups of fan blades 102, and the plurality of groups of fan blades 102 are respectively fixedly connected to the outer peripheries of the plurality of groups of shutter shafts 101;

[0062] There are two groups of rectangular shells 2, and the two groups of rectangular shells 2 are respectively arranged on both sides of the progressive purification fan 1;

[0063] The high-speed fan 3 is fixedly connected inside the progressive purification fan 1;

[0064] The coarse filter 4 is fixedly connected to the inside of the progressive purification fan 1, and the coarse filter 4 can filter out pollutants such as hair, lint and dust;

[0065] The medium-efficiency filter 5 is fixedly connected to the inside of the progressive purification fan 1, and the medium-efficiency filter 5 can filter out pollutants such as pollen, fine hair and soot;

[0066] The gas phase purification net 6 is fixedly connected to the inside of the progressive purification fan 1, and the gas phase purification net 6 can filter out pollutants such as formaldehyde, benzene and TVOC;

[0067] The high-efficiency filter 7 is fixedly connected to the inside of the progressive purification fan 1, and the high-efficiency filter 7 can effectively filter pollutants such as fine particles;

[0068] The servo motor 17 is fixedly connected inside the progressive purification fan 1;

[0069] The cleaning mechanism is arranged inside the progressive purification fan 1 .

[0070] Wherein, the cleaning mechanism includes a reciprocating screw 9 and a first guide shaft 10;

[0071] The reciprocating screw 9 is rotatably connected to the inside of two sets of bearing seats inside the progressive purification fan 1. The reciprocating screw 9 has two thread grooves with the same pitch and opposite rotation directions, and a transition curve is provided between the two thread grooves.

[0072] The first guide shaft 10 is fixedly connected to the side surfaces of two groups of bearing seats inside the progressive purification fan 1 .

[0073] The cleaning mechanism further includes a wind wheel 8 and a nut block 11;

[0074] The wind wheel 8 is fixedly connected to the outer periphery of one end of the reciprocating screw 9;

[0075] The nut block 11 is threadedly connected to the outer periphery of the reciprocating screw 9 . The nut block 11 and the reciprocating screw 9 form a screw structure. The nut block 11 slides on the outer periphery of the first guide shaft 10 .

[0076] The cleaning mechanism further includes a scraper 12, a cleaning strip 13 and an ash receiving trough 14;

[0077] The scraper 12 is fixedly connected to the side of the nut block 11, and the scraper 12 is attached to the outer side of the coarse filter 4;

[0078] The cleaning strip 13 is fixedly connected below the nut block 11;

[0079] The ash receiving trough 14 is fixedly connected to the lower side of the coarse-effect filter screen 4 .

[0080] The specific usage and function of the first embodiment are as follows:

[0081] During use, when the progressive purification fan 1 is in use, the coarse filter 4 is arranged on the outer layer, so most of the dust and other pollutants are easily gathered on the outer side of the coarse filter 4. Therefore, in order to avoid high-frequency manual cleaning of the coarse filter 4, when the high-speed fan 3 is running, the wind blown by the high-speed fan 3 will cause the wind wheel 8 to rotate, and the rotation of the wind wheel 8 causes the reciprocating screw 9 to rotate. When the reciprocating screw 9 rotates, the two spiral groove sides of the reciprocating screw 9 will push the nut block 11 to reciprocate along the axial direction, and the reciprocating movement of the nut block 11 will drive the scraper 12 and the cleaning strip 13 to reciprocate, and the scraper 12 The reciprocating movement will scrape off the dust and other pollutants on the outer side of the coarse-effect filter 4, and the dust and other pollutants will fall into the ash receiving trough 14. The reciprocating movement of the cleaning strip 13 will push the dust and other pollutants inside the ash receiving trough 14 to the two sides of the ash receiving trough 14, so that when the high-speed fan 3 is running, the dust and other pollutants on the outer side of the coarse-effect filter 4 will be scraped off and pushed to the two sides of the ash receiving trough 14, avoiding the situation that when a lot of dust accumulates on the coarse-effect filter 4, it will affect the ventilation effect of the progressive purification fan 1, avoid the tediousness and inconvenience of manual cleaning of the coarse-effect filter 4, and improve the cleaning efficiency of the coarse-effect filter 4.

[0082] Embodiment 2:

[0083] Based on the first embodiment, Figures 1 to 6 As shown, it also includes a dust cleaning mechanism, which is arranged inside the progressive purification fan 1;

[0084] The dust cleaning mechanism includes a second transmission shaft 22 and a second guide shaft 23;

[0085] There are eight groups of second guide shafts 23, and the eight groups of second guide shafts 23 are fixedly connected below the progressive purification fan 1;

[0086] There are two groups of second transmission shafts 22 , and the two groups of second transmission shafts 22 are rotatably connected to the bottom of the progressive purification fan 1 , and the outer circumferences of the two groups of second transmission shafts 22 are both provided with threads.

[0087] The dust cleaning mechanism further includes a lifting box 15 and a drawable dust cleaning box 16;

[0088] There are two groups of lifting boxes 15, which are respectively threadedly connected to the outer peripheries of the two groups of second transmission shafts 22, and the two groups of lifting boxes 15 and the two groups of second transmission shafts 22 respectively form a screw structure, and the two groups of lifting boxes 15 slide on the outer peripheries of the eight groups of second guide shafts 23;

[0089] There are two groups of pull-out dust cleaning boxes 16 , and the two groups of pull-out dust cleaning boxes 16 slide inside the two groups of lifting boxes 15 respectively.

[0090] The dust cleaning mechanism further includes a gear commutator 18 and a first transmission shaft 19;

[0091] The gear commutator 18 is fixedly connected inside the progressive purification fan 1. The gear commutator 18 is provided with a set of input shafts and two sets of output shafts. One set of input shafts of the gear commutator 18 is coaxially fixedly connected with the motor shaft of the servo motor 17.

[0092] There are two groups of first transmission shafts 19 , and the two groups of first transmission shafts 19 are rotatably connected inside the progressive purification fan 1 , and the two groups of first transmission shafts 19 are coaxially fixedly connected to the two groups of output shafts of the gear commutator 18 .

[0093] The dust cleaning mechanism further includes a first bevel gear 20 and a second bevel gear 21;

[0094] There are two groups of first bevel gears 20, and the two groups of first bevel gears 20 are respectively fixedly connected to the outer periphery of one end of the two groups of first transmission shafts 19;

[0095] There are two groups of second bevel gears 21 . The two groups of second bevel gears 21 are respectively fixedly connected to the outer periphery of one end of the two groups of second transmission shafts 22 . The two groups of second bevel gears 21 are respectively meshed with the two groups of first bevel gears 20 .

[0096] The specific usage and function of the second embodiment are as follows:

[0097] During use, dust and other pollutants on the outer side of the coarse filter 4 will be scraped off and pushed to the two sides of the ash receiving groove 14 and fall into the two sets of pull-out ash cleaning boxes 16. When the dust and other pollutants inside the two sets of pull-out ash cleaning boxes 16 need to be cleaned, the servo motor 17 is started, and the servo motor 17 rotates through the gear commutator 18 to rotate the two sets of first transmission shafts 19. The two sets of first transmission shafts 19 rotate through the two sets of first bevel gears 20 to drive the two sets of second bevel gears 21 to rotate, and the two sets of second bevel gears 21 rotate. The two sets of second transmission shafts 22 are driven to rotate, and the rotation of the two sets of second transmission shafts 22 causes the two sets of lifting boxes 15 to slide downward. When the two sets of lifting boxes 15 slide downward to a suitable position, the two sets of pull-out cleaning boxes 16 can be pulled out from the inside of the two sets of lifting boxes 15 to clean the dust and other pollutants inside the two sets of pull-out cleaning boxes 16, thereby avoiding the problem that the dust inside the two sets of pull-out cleaning boxes 16 is inconvenient to clean when the progressive purification fan 1 is installed at a higher position, thereby improving the cleaning efficiency of the coarse-efficiency filter 4.

Claims

1. A purification fan for an inoculation room, comprising a progressive purification fan (1), a louver fan shaft (101), fan blades (102), a rectangular housing (2), a high-speed fan (3), a coarse-effect filter (4), a medium-effect filter (5), a gas-phase purification net (6), a high-efficiency filter (7), a servo motor (17), a dust removal mechanism and a cleaning mechanism; the louver fan shaft (101) comprises a plurality of groups, and the plurality of groups of louver fan shafts (101) are rotatably connected to the inside of one end of the progressive purification fan (1); the fan blades (102) comprise a plurality of groups, and the plurality of groups of fan blades (102) are fixedly connected to the periphery of the plurality of groups of louver fan shafts (101); the characteristics are as follows: There are two groups of rectangular shells (2), and the two groups of rectangular shells (2) are respectively arranged on both sides of the progressive purification fan (1); the dust removal mechanism is arranged inside the progressive purification fan (1); the cleaning mechanism is arranged inside the progressive purification fan (1); the high-speed fan (3) is fixedly installed inside the progressive purification fan (1); the coarse-efficiency filter (4) is fixedly installed inside the progressive purification fan (1); the medium-efficiency filter (5) is fixedly installed inside the progressive purification fan (1); the gas phase purification net (6) is fixedly installed inside the progressive purification fan (1); the high-efficiency filter (7) is fixedly installed inside the progressive purification fan (1); and the servo motor (17) is fixedly installed inside the progressive purification fan (1).

2. A purification fan for an inoculation room as claimed in claim 1, characterized in that: The cleaning mechanism comprises a reciprocating screw (9) and a first guide shaft (10); the reciprocating screw (9) is rotatably mounted inside the progressive purification fan (1); and the first guide shaft (10) is fixedly mounted on the side surfaces of two sets of bearing seats inside the progressive purification fan (1).

3. A purification fan for an inoculation room as claimed in claim 2, characterized in that: The cleaning mechanism further comprises a wind wheel (8) and a nut block (11); the wind wheel (8) is fixedly mounted on the outer periphery of one end of the reciprocating screw (9); the nut block (11) is threadedly mounted on the outer periphery of the reciprocating screw (9), and the nut block (11) slides on the outer periphery of the first guide shaft (10).

4. A purification fan for an inoculation room as claimed in claim 2, characterized in that: The cleaning mechanism further comprises a scraper (12), a cleaning strip (13) and an ash receiving groove (14); the scraper (12) is fixedly mounted on the side of the nut block (11); the cleaning strip (13) is fixedly mounted below the nut block (11); and the ash receiving groove (14) is fixedly mounted on the side below the coarse-effect filter screen (4).

5. The inoculation room purification fan according to claim 1, characterized in that: The dust cleaning mechanism comprises a second transmission shaft (22) and a second guide shaft (23); there are eight groups of the second guide shafts (23), and the eight groups of the second guide shafts (23) are fixedly mounted below the progressive purification fan (1); there are two groups of the second transmission shafts (22), and the two groups of the second transmission shafts (22) are rotatably mounted below the progressive purification fan (1).

6. A purification fan for an inoculation room as claimed in claim 5, characterized in that: The dust cleaning mechanism further comprises a lifting box (15) and a removable dust cleaning box (16); there are two groups of the lifting boxes (15), the two groups of lifting boxes (15) are respectively threadedly mounted on the outer peripheries of the two groups of second transmission shafts (22), and the two groups of lifting boxes (15) slide on the outer peripheries of the eight groups of second guide shafts (23); there are two groups of removable dust cleaning boxes (16), and the two groups of removable dust cleaning boxes (16) slide inside the two groups of lifting boxes (15).

7. A purification fan for an inoculation room as claimed in claim 5, characterized in that: The dust cleaning mechanism further comprises a gear commutator (18) and a first transmission shaft (19); the gear commutator (18) is fixedly mounted inside the progressive purification fan (1), the gear commutator (18) is provided with a set of input shafts and two sets of output shafts, one set of input shafts of the gear commutator (18) is coaxially fixedly connected to the motor shaft of the servo motor (17); there are two sets of the first transmission shafts (19), the two sets of first transmission shafts (19) are rotatably mounted inside the progressive purification fan (1), and the two sets of first transmission shafts (19) are coaxially fixedly connected to the two sets of output shafts of the gear commutator (18).

8. The inoculation room purification fan as claimed in claim 5, characterized in that: The dust cleaning mechanism further comprises a first bevel gear (20) and a second bevel gear (21); there are two sets of the first bevel gear (20), and the two sets of the first bevel gear (20) are respectively fixedly connected to the outer periphery of one end of the two sets of first transmission shafts (19); there are two sets of the second bevel gear (21), and the two sets of the second bevel gear (21) are respectively fixedly mounted on the outer periphery of one end of the two sets of second transmission shafts (22), and the two sets of the second bevel gear (21) are respectively meshed with the two sets of the first bevel gear (20).

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