CN112253502A

CN112253502A - Dustproof and waterproof safety noise-reduction type explosion-proof fan

Info

Publication number: CN112253502A
Application number: CN202011282695.9A
Authority: CN
Inventors: 王正方; 董传友; 刘正东; 刘迪群; 张为军; 孙勇安; 其他发明人请求不公开姓名
Original assignee: Jiangsu Hengkang Electrical Co ltd
Current assignee: Jiangsu Hengkang Electrical Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-01-22
Anticipated expiration: 2040-11-17
Also published as: CN112253502B

Abstract

The invention discloses a dustproof and waterproof safety noise-reduction type explosion-proof fan which comprises a shell, wherein a cylinder is fixedly arranged in the shell through a plurality of first connecting rods, a round hole is formed in one end of the cylinder, a motor is fixedly arranged in the cylinder through a plurality of second connecting rods, a rotating shaft of the motor penetrates through the round hole and extends out of the cylinder, a fan blade mounting seat is fixedly arranged at one end, extending out of the cylinder, of the rotating shaft of the motor, and a plurality of fan blades are fixedly arranged on the outer wall of the fan blade mounting seat. Has the advantages that: can be effectual completely cut off motor and external environment to can effectually avoid in the material such as dust, steam among the adverse circumstances gets into the motor and lead to motor damage and safety problem, and can carry out effectual shock attenuation to the casing, thereby can protect the casing, and reduce the noise that casing vibration produced, but also can be convenient for assemble and dismantle casing and slide bar, thereby the convenience of increase use that can be great.

Description

Dustproof and waterproof safety noise-reduction type explosion-proof fan

Technical Field

The invention relates to the field of explosion-proof fans, in particular to a dustproof and steam-proof safety noise-reduction type explosion-proof fan.

Background

A fan is a machine for compressing and transporting gas, which is a machine that converts the mechanical energy of a prime mover into gas energy from an energy standpoint. The centrifugal ventilator mainly comprises main components such as an air inlet, an impeller, a volute and the like, is generally used for indoor ventilation of large buildings such as factories and the like, can also be used for high-pressure forced ventilation of boilers, forging furnaces and the like, is applied to occasions such as material conveying and the like, mainly utilizes centrifugal force generated by rotation of the impeller to enable a medium to obtain energy, and then converts partial kinetic energy into static pressure through the volute and a volute outlet diffusion section. The type of gas conveyed by the common centrifugal ventilator is air or other non-flammable and non-explosive gases which have no corrosiveness on steel.

The explosion-proof fan is mainly suitable for indoor ventilation and cooling of buildings in explosive dangerous environments such as factories, hospitals, petroleum, storage, military industry and the like. There is the dust more in these dangerous environments, the moist problem, conventional fan is not good because the leakproofness, the protection is not enough, the inside dust or steam of easily advancing of motor appear easily, and then lead to motor damage and safety problem, and current fan casing can produce the vibration in the use, not only can produce great noise, and cause the casing to warp easily, damage even, and the mode that adopts the bolt mostly between current fan and the support frame is fixed, not only take place not hard up easily in the environment of vibration, and be difficult to dismantle the support frame and install, it is comparatively inconvenient to use.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a dustproof and waterproof safety noise-reduction type explosion-proof fan, which aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a dustproof and waterproof safety noise-reduction type explosion-proof fan comprises a shell, wherein a cylinder is fixedly arranged in the shell through a plurality of first connecting rods, a round hole is formed in one end of the cylinder, a motor is fixedly arranged in the cylinder through a plurality of second connecting rods, a rotating shaft of the motor penetrates through the round hole and extends out of the cylinder, a fan blade mounting seat is fixedly arranged at one end, extending out of the rotating shaft of the motor, of the cylinder, a plurality of fan blades are fixedly arranged on the outer wall of the fan blade mounting seat, an O-shaped sealing ring is fixedly embedded in the inner wall of the round hole and closely attached to the rotating shaft of the motor, a heat absorption pipe is spirally wound on the outer wall of the motor, an annular cylinder is fixedly arranged on the outer wall of one end, away from the round hole, of the cylinder, an annular cavity is formed in the middle of the annular cylinder, a miniature, the input end of the micro water pump is connected with the annular cavity, one end of the heat absorption pipe, far away from the micro water pump, is connected with the annular cavity, the outer wall of the annular cylinder is fixedly provided with a plurality of radiating fins at equal intervals along the circumferential direction, the annular cavity and the heat absorption pipe are both provided with heat conducting liquid, the outer wall of the shell is provided with a supporting device, the supporting device comprises two circular rings, the circular rings are respectively and fixedly sleeved on the outer wall of the shell, close to the two ends of the shell, the outer walls of the two sides of the circular rings are both fixedly provided with connecting columns, the lower ends of the connecting columns are both detachably provided with sliding rods through connecting pieces, the connecting pieces comprise translation plates, limiting columns, springs and convex columns, the middle parts of the lower ends of the connecting columns are provided with cavities, the cavities are of cuboid structures, and, the outer wall of the limiting column is provided with a translation plate in a sliding manner, the middle part of the translation plate is provided with two limiting holes which are matched with the limiting column, the limiting column respectively penetrates through the corresponding limiting holes, a plurality of springs are fixedly arranged between the translation plate and the inner wall of one side of the cavity, one end of the translation plate, far away from one side of the springs, is fixedly provided with a sliding column, one side wall of the cavity is provided with first through holes which are matched with the sliding column, the sliding column penetrates through the first through holes, one end of the sliding column, far away from the translation plate, is fixedly provided with a button, one end of the translation plate, far away from the sliding column, is fixedly provided with two convex columns, one side of the cavity is provided with two second through holes which are matched with the convex columns, the convex columns respectively penetrate through the corresponding second through holes, and the upper end of the sliding rod is provided with slots which, just slot one side wall set up quantity be two and with projection assorted third perforation, the spliced pole lower extreme stretches into in the slot, just the projection runs through the third perforation, slide bar lower extreme outer wall slip cover is equipped with the slide cartridge, the fixed cover of slide bar lower extreme outer wall is equipped with first spacing ring, the inner wall that the slide cartridge is close to the upper end is fixed and is equipped with the second spacing ring, the slide bar is close to the fixed cover of outer wall of lower extreme and is equipped with sealed damping cover, just sealed damping cover outer wall is hugged closely the slide cartridge inner wall, the fixed damping spring that is equipped with of slide bar lower extreme, the damping spring lower extreme with slide cartridge bottom inner wall fixed connection, slide cartridge lower extreme one side fixedly connected with pressure relief pipe, just the pressure relief pipe is kept away from slide cartridge one end is installed the relief valve, the slide cartridge lower extreme all is.

Furthermore, the outer walls of the two ends of the shell are fixedly sleeved with flange plates, and a plurality of mounting holes are formed in the flange plates at equal intervals in the circumferential direction.

Furthermore, the rotating shaft of the motor extends out of a baffle is fixedly sleeved on the outer wall of the middle of one end of the cylinder, and the baffle is far away from one surface of the cylinder and is of a cambered surface structure.

Further, the fan blade mount pad is round platform column structure, just the fan blade mount pad is kept away from motor one end is fixed and is equipped with the cone.

Furthermore, a silica gel pad is fixedly arranged on the outer wall of the button.

Furthermore, one end of the convex column, which is far away from the translation plate, is provided with a semi-spherical structure.

Further, the heat absorbing pipe, the annular cylinder and the heat radiating fins are all made of pure copper materials.

Further, a cleaning layer is fixedly arranged on the inner wall of the upper end of the sliding cylinder and made of cleaning sponge.

Furthermore, reinforcing rods are fixedly arranged between the sliding cylinders at the same end.

Furthermore, anti-slip pads are fixedly arranged below the bottom plate.

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

(1) according to the invention, by arranging the shell, the cylinder, the motor, the O-shaped sealing ring, the heat absorption pipe, the annular cylinder, the micro water pump, the radiating fin, the connecting piece, the sliding rod, the sliding cylinder, the damping spring, the sealing damping sleeve and the pressure relief pipe, the motor can be effectively isolated from the external environment, so that the motor damage and safety problems caused by the fact that substances such as dust, water vapor and the like in severe environment enter the motor can be effectively avoided, the shell can be effectively damped, the shell can be protected, the noise generated by shell vibration is reduced, and the shell and the sliding rod can be conveniently assembled and disassembled, so that the use convenience can be greatly improved.

(2) The shell is convenient to connect and fix with the ventilation pipeline by arranging the flange plate and the mounting hole.

(3) According to the invention, through arranging the baffle plate, impurities such as dust or water vapor can be further prevented from entering the cylinder from the circular hole, and the resistance of the baffle plate to airflow can be reduced by arranging one side of the baffle plate to be in the arc-shaped structure.

(4) The fan blade mounting seat is provided with the cone, so that the resistance of the fan blade mounting seat to airflow can be effectively reduced.

(5) The silica gel pad is arranged, so that the comfort degree of the button pressing process can be effectively improved.

(6) According to the invention, one end of the convex column is arranged in a hemispherical structure, so that the convex column can be more easily inserted into the second through hole and the third through hole.

(7) The outer wall of the sliding rod can be cleaned by arranging the cleaning layer, so that dust on the outer wall of the sliding rod can be prevented from entering the sliding cylinder.

(8) The stability of the sliding cylinder can be effectively improved by arranging the reinforcing rod.

(9) The anti-skid pad is arranged, so that the anti-skid performance of the bottom plate can be improved.

Drawings

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

FIG. 1 is a schematic structural diagram of a dustproof and moisture-proof safety noise-reduction explosion-proof fan according to an embodiment of the invention;

FIG. 2 is a sectional view of a cylinder in the dustproof and moisture-proof safety noise-reduction explosion-proof fan according to the embodiment of the invention;

FIG. 3 is a front view of an annular cylinder in the dustproof and waterproof safety noise-reduction explosion-proof fan according to the embodiment of the invention;

FIG. 4 is a schematic structural diagram of a supporting device in a dustproof and moisture-proof safety noise-reduction explosion-proof fan according to an embodiment of the invention;

FIG. 5 is a cross-sectional view of a joint between a connecting column and a sliding rod in the dustproof and waterproof safety noise-reduction type explosion-proof fan according to the embodiment of the invention;

FIG. 6 is a cross-sectional view of the lower part of a connecting column in the dustproof and moisture-proof safety noise-reducing explosion-proof fan according to the embodiment of the invention;

FIG. 7 is a sectional view of the upper end of a sliding rod in the dustproof and waterproof safety noise-reduction type explosion-proof fan according to the embodiment of the invention;

FIG. 8 is a sectional view of a translating plate in the dustproof and moisture proof safety noise reduction type explosion-proof fan according to the embodiment of the invention;

fig. 9 is a sectional view of a sliding cylinder in a dustproof and moisture-proof safety noise-reduction explosion-proof fan according to an embodiment of the invention.

Reference numerals:

1. a housing; 2. a cylinder; 3. a circular hole; 4. a motor; 5. a fan blade mounting base; 6. a fan blade; 7. an O-shaped sealing ring; 8. a heat absorbing tube; 9. an annular cylinder; 10. an annular cavity; 11. a micro water pump; 12. a heat sink; 13. a circular ring; 14. connecting columns; 15. a slide bar; 16. a translation plate; 17. a limiting column; 18. a spring; 19. a convex column; 20. a cavity; 21. a limiting hole; 22. a traveler; 23. a first perforation; 24. a button; 25. a second perforation; 26. a slot; 27. a third perforation; 28. a slide cylinder; 29. a first limit ring; 30. a second stop collar; 31. sealing the damping sleeve; 32. a damping spring; 33. a pressure relief pipe; 34. a pressure relief valve; 35. a base plate; 36. a flange plate; 37. a baffle plate; 38. a cone; 39. a silica gel pad; 40. a cleaning layer; 41. a reinforcing bar; 42. a non-slip mat; 43. a first connecting rod; 44. a second connecting rod.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-9, a dustproof and waterproof safety noise-reduction explosion-proof fan according to an embodiment of the present invention includes a casing 1, a cylinder 2 is fixedly disposed in the casing 1 through a plurality of first connecting rods 43, a circular hole 3 is disposed at one end of the cylinder 2, a motor 4 is fixedly disposed in the cylinder 2 through a plurality of second connecting rods 44, a rotating shaft of the motor 4 penetrates through the circular hole 3 and extends out of the cylinder 2, a fan blade mounting seat 5 is fixedly disposed at one end of the rotating shaft of the motor 4, which extends out of the cylinder 2, a plurality of fan blades 6 are fixedly disposed on an outer wall of the fan blade mounting seat 5, an O-ring 7 is fixedly embedded in an inner wall of the circular hole 3, the O-ring 7 is tightly attached to the rotating shaft of the motor 4, a heat absorbing pipe 8 is spirally wound on an outer wall of the motor 4, and an annular cylinder 9 is fixedly, an annular cavity 10 is formed in the middle of the annular cylinder 9, a micro water pump 11 is fixedly arranged on the outer wall of one end, away from the circular hole 3, of the cylinder 2, the output end of the micro water pump 11 is connected with one end of the heat absorption pipe 8, the input end of the micro water pump 11 is connected with the annular cavity 10, one end, away from the micro water pump 11, of the heat absorption pipe 8 is connected with the annular cavity 10, a plurality of radiating fins 12 are fixedly arranged on the outer wall of the annular cylinder 9 at equal intervals along the circumferential direction, heat conducting liquid is arranged in the annular cavity 10 and the heat absorption pipe 8, a supporting device is arranged on the outer wall of the shell 1, the supporting device comprises two rings 13, the number of the rings 13 is two, the rings 13 are respectively and fixedly sleeved on the outer wall of the shell 1 close to the two ends, connecting columns 14 are fixedly arranged on the outer walls on the two sides of the, the connecting piece comprises a translation plate 16, a limiting column 17, springs 18 and a convex column 19, a cavity 20 is formed in the middle of the lower end of the connecting column 14, the cavity 20 is of a cuboid structure, two limiting columns 17 are fixedly arranged between the inner walls of two sides of the cavity 20, the outer wall of each limiting column 17 is provided with the translation plate 16 in a sliding mode, two limiting holes 21 matched with the limiting columns 17 are formed in the middle of the translation plate 16, the limiting columns 17 penetrate through the corresponding limiting holes 21 respectively, a plurality of springs 18 are fixedly arranged between the translation plate 16 and the inner wall of one side of the cavity 20, one end, far away from one side of each spring 18, of the translation plate 16 is fixedly provided with a sliding column 22, one side wall of the cavity 20 is provided with a first through hole 23 matched with the sliding column 22, the sliding column 22 penetrates through the first through hole 23, and a button 24 is fixedly arranged at one end, far away from the translation plate 16, of, the sliding plate 16 is far away from one end of the sliding column 22 and is fixedly provided with two convex columns 19, one side of the cavity 20 is provided with two second through holes 25 matched with the convex columns 19, the convex columns 19 respectively penetrate through the corresponding second through holes 25, the upper end of the sliding rod 15 is provided with a slot 26 matched with the connecting column 14, a side wall of the slot 26 is provided with two third through holes 27 matched with the convex columns 19, the lower end of the connecting column 14 extends into the slot 26, the convex columns 19 penetrate through the third through holes 27, the outer wall of the lower end of the sliding rod 15 is slidably sleeved with a sliding cylinder 28, the outer wall of the lower end of the sliding rod 15 is fixedly provided with a first limit ring 29, the sliding cylinder 28 is close to the inner wall of the upper end and is fixedly provided with a second limit ring 30, the outer wall of the sliding rod 15 close to the lower end is fixedly provided with a sealing damping sleeve 31, and the outer wall of the sealing damping sleeve 31 is tightly attached to the inner wall of the sliding barrel 28, a damping spring 32 is fixedly arranged at the lower end of the sliding rod 15, the lower end of the damping spring 32 is fixedly connected with the inner wall of the bottom end of the sliding barrel 28, a pressure relief pipe 33 is fixedly connected to one side of the lower end of the sliding barrel 28, the pressure relief pipe 33 is far away from one end of the sliding barrel 28 and is provided with a pressure relief valve 34, and the lower end of the sliding barrel 28 is fixedly provided with a bottom plate.

Through the scheme of the invention, the motor 4 can be effectively isolated from the external environment, so that the problems of damage and safety of the motor 4 caused by the fact that substances such as dust, water vapor and the like in a severe environment enter the motor 4 can be effectively solved, the shell 1 can be effectively damped, the shell 1 can be protected, the noise generated by vibration of the shell 1 can be reduced, the shell 1 and the sliding rod 15 can be conveniently assembled and disassembled, and the use convenience can be greatly improved.

Example two:

referring to fig. 1-2, for a housing 1, flanges 36 are fixedly sleeved on outer walls of two ends of the housing 1, and a plurality of mounting holes are formed in the flanges 36 at equal intervals along a circumferential direction; for the motor 4, a baffle 37 is fixedly sleeved on the outer wall of the middle part of one end, extending out of the cylinder 2, of the rotating shaft of the motor 4, and the baffle 37 is far away from one surface of the cylinder 2 and is arranged to be of an arc surface structure.

Through the scheme of the invention, the flange 36 and the mounting hole can facilitate the connection and fixation of the shell 1 and the ventilation pipeline, the baffle 37 can further prevent impurities such as dust or water vapor from entering the cylinder 2 from the circular hole 3, and the resistance of the baffle 37 to airflow can be reduced by arranging one side of the baffle 37 to be in an arc-shaped structure.

Example three:

referring to fig. 1, 5 and 8, for the fan blade mounting base 5, the fan blade mounting base 5 is a circular truncated cone-shaped structure, and a cone 38 is fixedly disposed at one end of the fan blade mounting base 5 away from the motor 4; for the button 24, a silicone pad 39 is fixedly arranged on the outer wall of the button 24.

Through the scheme of the invention, the cone 38 can effectively reduce the resistance of the fan blade mounting base 5 to air flow, and the silica gel pad 39 can effectively increase the comfort level when the button 24 is pressed.

Example four:

referring to fig. 2, 5, 8 and 9, for the convex column 19, one end of the convex column 19 away from the translation plate 16 is disposed in a semi-spherical structure; for the absorber tubes 8, the annular cylinder 9 and the fins 12, the absorber tubes 8, the annular cylinder 9 and the fins 12 are all made of pure copper material; for the slide cylinder 28, a cleaning layer 40 is fixedly arranged on the inner wall of the upper end of the slide cylinder 28, and the cleaning layer 40 is made of cleaning sponge.

Through the scheme of the invention, one end of the convex column 19 is arranged to be of a hemispherical structure, so that the convex column 19 can be more easily inserted into the second through hole 25 and the third through hole 27, and the cleaning layer 40 can clean the outer wall of the sliding rod 15, thereby preventing dust on the outer wall of the sliding rod 15 from entering the sliding cylinder 28.

Example five:

referring to fig. 4, for the slide cylinders 28, reinforcing rods 41 are fixedly arranged between the slide cylinders 28 at the same end; for the bottom plate 35, a non-slip mat 42 is fixedly arranged under the bottom plate 35.

Through the scheme of the invention, the reinforcing rod 41 can effectively increase the stability of the slide cylinder 28, and the anti-skid pad 42 can increase the anti-skid performance of the bottom plate 35.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the cylinder 2 is arranged outside the motor 4, and the O-ring 7 is arranged between the circular hole 3 of the cylinder 2 and the rotating shaft of the motor 4, so that the motor 4 can be effectively isolated from the external environment, thereby effectively avoiding the damage and safety problem of the motor 4 caused by the dust, water vapor and other substances in the severe environment entering the motor 4, and the shell 1 can be driven to stretch in the sliding cylinder 28 when vibrating, thereby being capable of extruding the damping force between the damping spring 32 and the air-fit sealing damping sleeve 31 at the bottom end of the sliding cylinder 28 and the inner wall of the cylinder 2, thereby being capable of effectively damping the shell 1, protecting the shell 1 and reducing the noise generated by the vibration of the shell 1, and when the sliding rod 15 is installed, only the button 24 needs to be pressed, then the connecting column 14 is inserted into the slot 26, so that the convex column 19 aligns to the third through hole 27 and then the button 24 is loosened, when the fan blade mounting seat is detached, the convex column 19 can be separated from the third through hole 27 only by pressing the button 24, so that the connecting column 14 can be pulled out from the slot 26 to complete detachment, the shell 1 and the slide rod 15 can be conveniently assembled and detached, the convenience of use can be greatly improved, the flange plate 36 and the mounting hole can be convenient for the shell 1 and the ventilation pipeline to be connected and fixed, the baffle 37 can further prevent impurities such as dust or water vapor from entering the cylinder 2 from the round hole 3, the resistance of the baffle 37 to airflow can be reduced by arranging one side of the baffle 37 to be in an arc-shaped structure, the cone 38 can effectively reduce the resistance of the fan blade mounting seat 5 to the airflow, the comfort degree of the silicone pad 39 when the button 24 is pressed can be effectively increased, one end of the convex column 19 is arranged to be in a hemispherical structure, the convex column 19 can be more easily inserted into the second through hole 25 and the third through, the cleaning layer 40 can clean the outer wall of the sliding rod 15, so that dust on the outer wall of the sliding rod 15 can be prevented from entering the sliding cylinder 28, the reinforcing rod 41 can effectively increase the stability of the sliding cylinder 28, and the anti-skid pad 42 can increase the anti-skid performance of the bottom plate 35.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof fan of formula of making an uproar falls in dustproof steam-proof safety type which characterized in that, includes casing (1), fixedly be equipped with drum (2) through a plurality of head rods (43) in casing (1).

2. The dustproof and moisture-proof safety noise-reduction explosion-proof fan according to claim 1, wherein a round hole (3) is formed at one end of the cylinder (2), a motor (4) is fixedly arranged in the cylinder (2) through a plurality of second connecting rods (44), a rotating shaft of the motor (4) penetrates through the round hole (3) and extends out of the cylinder (2), a fan blade mounting seat (5) is fixedly arranged at one end of the rotating shaft of the motor (4) extending out of the cylinder (2), a plurality of fan blades (6) are fixedly arranged on the outer wall of the fan blade mounting seat (5), an O-shaped sealing ring (7) is fixedly embedded in the inner wall of the round hole (3), the O-shaped sealing ring (7) is tightly attached to the rotating shaft of the motor (4), a heat absorbing pipe (8) is spirally wound on the outer wall of the motor (4), an annular cylinder (9) is fixedly arranged on the outer wall of one end of the cylinder (2), an annular cavity (10) is formed in the middle of the annular cylinder (9), a miniature water pump (11) is fixedly arranged on the outer wall of one end, away from the round hole (3), of the cylinder (2), the output end of the miniature water pump (11) is connected with one end of the heat absorbing pipe (8), the input end of the miniature water pump (11) is connected with the annular cavity (10), one end, away from the miniature water pump (11), of the heat absorbing pipe (8) is connected with the annular cavity (10), a plurality of radiating fins (12) are fixedly arranged on the outer wall of the annular cylinder (9) at equal intervals along the circumferential direction, heat conducting liquid is arranged in the annular cavity (10) and the heat absorbing pipe (8), a supporting device is arranged on the outer wall of the shell (1), the supporting device comprises two rings (13), and the rings (13) are fixedly sleeved on the outer walls, close to two ends, of the shell (1), the outer walls of two sides of the circular ring (13) are fixedly provided with connecting columns (14), the lower ends of the connecting columns (14) are detachably provided with slide rods (15) through connecting pieces, each connecting piece comprises a translation plate (16), two limiting columns (17), springs (18) and convex columns (19), the middle of the lower end of each connecting column (14) is provided with a cavity (20), each cavity (20) is of a cuboid structure, the two limiting columns (17) are fixedly arranged between the inner walls of two sides of each cavity (20), the outer walls of the limiting columns (17) are slidably provided with the translation plates (16), the middle of each translation plate (16) is provided with two limiting holes (21) matched with the corresponding limiting columns (17), the corresponding limiting holes (21) are respectively penetrated by the limiting columns (17), and the plurality of springs (18) are fixedly arranged between the translation plates (16) and the inner wall of one side of each cavity (20), the sliding plate (16) is fixedly provided with a sliding column (22) at one end far away from one side of the spring (18), a first through hole (23) matched with the sliding column (22) is formed in one side wall of the cavity (20), the sliding column (22) penetrates through the first through hole (23), a button (24) is fixedly arranged at one end far away from the sliding plate (16) of the sliding column (22), two convex columns (19) are fixedly arranged at one end far away from the sliding column (22) of the sliding plate (16), two second through holes (25) matched with the convex columns (19) are formed in one side of the cavity (20), the convex columns (19) respectively penetrate through the corresponding second through holes (25), a slot (26) matched with the connecting column (14) is formed in the upper end of the sliding rod (15), a third through hole (27) which is formed in two and is matched with the convex columns (19) is formed in one side wall of the slot (26), the spliced pole (14) lower extreme stretches into in slot (26), just projection (19) run through the third is perforated (27), slide bar (15) lower extreme outer wall slides and overlaps and be equipped with slide barrel (28), slide bar (15) lower extreme outer wall fixed cover is equipped with first spacing ring (29), slide barrel (28) are close to the inner wall of upper end and are fixed and be equipped with second spacing ring (30), slide bar (15) are close to the outer wall fixed cover of lower extreme and are equipped with sealed damping cover (31), just sealed damping cover (31) outer wall is hugged closely slide barrel (28) inner wall, slide bar (15) lower extreme is fixed and is equipped with damping spring (32), damping spring (32) lower extreme with slide barrel (28) bottom inner wall fixed connection, slide barrel (28) lower extreme one side fixedly connected with pressure relief pipe (33), just pressure relief pipe (33) keep away from slide barrel (28) one end and install (34), the sliding cylinder is characterized in that a bottom plate (35) is fixedly arranged at the lower end of the sliding cylinder (28), a flange plate (36) is fixedly sleeved on the outer wall of each of two ends of the shell (1), and a plurality of mounting holes are formed in the flange plate (36) at equal intervals in the circumferential direction.

3. The dustproof and moisture-proof safe noise-reduction explosion-proof fan is characterized in that a baffle (37) is fixedly sleeved on the outer wall of the middle part of one end, extending out of the cylinder (2), of the rotating shaft of the motor (4), and one surface, far away from the cylinder (2), of the baffle (37) is arranged to be of an arc surface structure.

4. The dustproof and moisture-proof safe noise-reduction explosion-proof fan is characterized in that the fan blade mounting seat (5) is of a circular truncated cone-shaped structure, and a cone (38) is fixedly arranged at one end, far away from the motor (4), of the fan blade mounting seat (5).

5. The dustproof and moisture-proof safety noise-reduction explosion-proof fan is characterized in that a silica gel pad (39) is fixedly arranged on the outer wall of the button (24).

6. The dustproof and moisture-proof safety noise-reduction explosion-proof fan according to claim 2, wherein one end of the convex column (19) far away from the translation plate (16) is provided with a semi-spherical structure.

7. The dustproof and moisture-proof safety noise-reducing explosion-proof fan according to claim 2, wherein the heat absorbing pipe (8), the annular cylinder (9) and the heat radiating fins (12) are all made of pure copper material.

8. The dustproof and moisture-proof safety noise-reduction explosion-proof fan is characterized in that a cleaning layer (40) is fixedly arranged on the inner wall of the upper end of the sliding cylinder (28), and the cleaning layer (40) is made of cleaning sponge.

9. The dustproof and moisture-proof safety noise-reduction explosion-proof fan is characterized in that a reinforcing rod (41) is fixedly arranged between the sliding cylinders (28) at the same end.

10. The dustproof and moisture-proof safety noise-reduction explosion-proof fan is characterized in that an anti-skid pad (42) is fixedly arranged below the bottom plate (35).