CN210531181U

CN210531181U - Jet fan

Info

Publication number: CN210531181U
Application number: CN201921302395.5U
Authority: CN
Inventors: 吴峰
Original assignee: Nantong Tongfu Fan Equipment Co Ltd
Current assignee: Nantong Tongfu Fan Equipment Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-15
Anticipated expiration: 2029-08-13

Abstract

The utility model belongs to the technical field of the fan, especially, be a jet fan, including main dryer, the both sides difference fixed mounting of main dryer has exhaust section of thick bamboo and an air inlet section of thick bamboo, and the equal fixed mounting in one side that exhaust section of thick bamboo and air inlet section of thick bamboo kept away from each other has dustproof filter screen, is equipped with the mounting panel in the main dryer, and the top fixed mounting of mounting panel has the motor, and fixed mounting has four flabellums on the output shaft of motor, and four flabellums equidistant annular is arranged, and fixed mounting has four support columns on the bottom inner wall of main dryer, and four support columns are two bisymmetry. The utility model relates to a rationally, the principle is clear and definite, can carry out the shock attenuation buffering to the vibrational force that the motor produced, when supplying air, can drive brush board and brush hair and rotate, utilizes the brush hair can clean the dustproof filter screen of an air inlet section of thick bamboo one side, prevents that dust impurity gathering adhesion from plugging up the mesh on dustproof filter screen for the ventilation is smooth, is fit for extensively using widely.

Description

Jet fan

Technical Field

The utility model relates to a fan technical field especially relates to a jet fan.

Background

The jet fan is a special axial flow fan, is mainly used for providing all thrust in longitudinal ventilation systems of tunnels such as highways, railways, subways and the like, and can also be used for sensitive parts in semi-transverse ventilation systems or transverse ventilation systems, such as inlets and outlets of the tunnels, and has the functions of inducing air flow or discharging smoke and the like.

However, among the prior art, the efflux fan commonly used is when using, can not carry out the shock attenuation buffering to the vibrational force that the motor produced, the time is of a specified duration, the installation stability to the efflux fan reduces, thereby the life of efflux fan has been reduced, and because the dust impurity in the air is more, dust impurity adsorbs the gathering on dustproof filter screen, can cause the mesh plug, thereby influence the effect of circulation of air, it often dismantles the washing to need maintainer, increase intensity of labour, for this reason, we propose a efflux fan and be used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a jet fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a jet fan comprises a main air duct, wherein a discharge air duct and an air inlet duct are respectively and fixedly arranged on two sides of the main air duct, dustproof filter screens are respectively and fixedly arranged on the sides, away from each other, of the discharge air duct and the air inlet duct, a mounting plate is arranged in the main air duct, a motor is fixedly arranged at the top of the mounting plate, four fan blades are fixedly arranged on an output shaft of the motor and are arranged in an equally-spaced annular manner, four support columns are fixedly arranged on the inner wall of the bottom of the main air duct, the four support columns are symmetrically arranged in pairs, slide grooves are respectively formed in the tops of the four support columns, slide rods are respectively and slidably arranged in the four slide grooves, the top ends of the slide rods extend out of the slide grooves, the top ends of the four slide rods are respectively and fixedly arranged at the bottom of the mounting plate, springs which are sleeved on the corresponding slide rods are respectively and, all fixed cover is equipped with first belt pulley on the one end of first pivot and the output shaft of motor, the cover is equipped with same first belt on two first belt pulleys, fixed mounting has two backup pads in the air inlet section of thick bamboo, the mounting hole has all been seted up to one side that two backup pads are close to each other, equal fixed mounting has same second pivot in two mounting holes, the both ends of second pivot all extend outside corresponding mounting hole, and the one end of second pivot extends to in the main dryer, the one end that first belt pulley was kept away from to the one end that the second pivot is located main dryer and first pivot is all fixed the cover and is equipped with the second belt pulley, the cover is equipped with same second belt on two second belt pulleys, the one end fixed mounting that the second belt pulley was kept away from in the second pivot has the brush board.

Preferably, the inner walls of the air exhaust barrel and the air inlet barrel are fixedly provided with silencing cotton.

Preferably, four balls are nested on the inner wall of the sliding groove and are annularly arranged at equal intervals, and the four balls are in rolling contact with the sliding rod.

Preferably, the first rotating shaft is rotatably sleeved with two positioning blocks, and the two positioning blocks are fixedly mounted on the inner wall of the top of the main air duct.

Preferably, the second rotating shaft is fixedly sleeved with two bearings, and outer rings of the two bearings are fixedly connected with inner walls of the corresponding mounting holes respectively.

Preferably, one side of the brush plate, which is far away from the second rotating shaft, is fixedly provided with brush bristles, and the brush bristles are in contact with the dustproof filter screen on one side of the air inlet cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the device is characterized in that a main air duct, an exhaust air duct, an air inlet duct, dustproof filter screens, a mounting plate, a motor, fan blades, support columns, sliding chutes, sliding rods, springs, first belt pulleys, first belts, support plates, mounting holes, second rotating shafts, second belt pulleys, second belts, brush plates, silencing cotton and the first rotating shafts are matched, the motor is started to work, the motor drives the fan blades to rotate, air enters from the air inlet duct and is discharged from the exhaust air duct, the two dustproof filter screens can be used for blocking and filtering dust and impurities in the outside air, when the motor rotates, an output shaft of the motor drives the corresponding first belt pulleys to rotate, under the transmission action of the first belts, the two first belt pulleys and the first rotating shafts rotate simultaneously, under the transmission action of the second belts, the first rotating shafts drive the two second belt pulleys and the second rotating shafts to rotate simultaneously, the second rotating shafts drive the brush plates and brush bristles to rotate, the dustproof filter screen on one side of the air inlet cylinder can be cleaned by utilizing the brush hair, dust impurities are prevented from being gathered and adhered to the dustproof filter screen to block the mesh holes, vibration and slight amplitude can be generated when the motor runs, the vibration force generated by the motor is transmitted to the mounting plate and the four slide bars, the four slide bars respectively slide in the corresponding chutes in a small amplitude, the balls roll on the slide bars, the four springs deform to generate elasticity, and therefore, the vibration force generated by the motor can be damped and buffered by utilizing the elastic force of the four springs, the problem that the installation stability of the jet fan is influenced by the vibration of the motor is avoided, the service life of the motor is prolonged, and the noise reduction effect can be achieved by utilizing the sound absorption cotton;

the utility model relates to a rationally, the principle is clear and definite, can carry out the shock attenuation buffering to the vibrational force that the motor produced, when supplying air, can drive brush board and brush hair and rotate, utilizes the brush hair can clean the dustproof filter screen of an air inlet section of thick bamboo one side, prevents that dust impurity gathering adhesion from plugging up the mesh on dustproof filter screen for the ventilation is smooth, is fit for extensively using widely.

Drawings

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

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic sectional structure view of the left side of the air inlet drum.

In the figure: 1. a main air duct; 2. an exhaust duct; 3. an air inlet cylinder; 4. a dustproof filter screen; 5. mounting a plate; 6. a motor; 7. a fan blade; 8. a support pillar; 9. a chute; 10. a slide bar; 11. a spring; 12. a first pulley; 13. a first belt; 14. a support plate; 15. mounting holes; 16. a second rotating shaft; 17. a second pulley; 18. a second belt; 19. brushing the board; 20. silencing cotton; 21. a first rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a jet fan comprises a main air duct 1, wherein an exhaust duct 2 and an air inlet duct 3 are respectively and fixedly installed on two sides of the air duct 1, dustproof filter screens 4 are respectively and fixedly installed on one sides, away from each other, of the exhaust duct 2 and the air inlet duct 3, a mounting plate 5 is arranged in the main air duct 1, a motor 6 is fixedly installed on the top of the mounting plate 5, four fan blades 7 are fixedly installed on an output shaft of the motor 6, the four fan blades 7 are arranged in an equally-spaced annular manner, four support columns 8 are fixedly installed on the inner wall of the bottom of the main air duct 1, the four support columns 8 are symmetrically arranged in pairs, slide grooves 9 are respectively formed in the tops of the four support columns 8, slide bars 10 are respectively and slidably installed in the four slide grooves 9, the top ends of the slide bars 10 extend out of the slide grooves 9, the top ends of the four slide bars 10 are respectively and, the top ends of four springs 11 are all fixedly arranged at the bottom of the mounting plate 5, a first rotating shaft 21 positioned above the motor 6 is arranged in the main air duct 1, one end of the first rotating shaft 21 and the output shaft of the motor 6 are all fixedly sleeved with a first belt pulley 12, two first belt pulleys 12 are sleeved with a same first belt 13, two supporting plates 14 are fixedly arranged in the air inlet duct 3, one sides of the two supporting plates 14 close to each other are respectively provided with a mounting hole 15, two mounting holes 15 are respectively and fixedly provided with a same second rotating shaft 16, two ends of the second rotating shaft 16 extend out of the corresponding mounting holes 15, one end of the second rotating shaft 16 extends into the main air duct 1, one end of the second rotating shaft 16 positioned in the main air duct 1 and one end of the first rotating shaft 21 far away from the first belt pulley 12 are respectively and fixedly sleeved with a second belt pulley 17, two second belt pulleys 17 are provided with a same second belt 18, a brush plate 19 is fixedly arranged at one end of the second rotating shaft 16 far away from the second belt pulley 17;

silencing cotton 20 is fixedly mounted on the inner walls of the exhaust air cylinder 2 and the air inlet cylinder 3, four balls are nested on the inner wall of the sliding groove 9 and are arranged in an equidistant annular mode, the four balls are in rolling contact with the sliding rod 10, two positioning blocks are rotatably sleeved on the first rotating shaft 21 and are fixedly mounted on the inner wall of the top of the main air cylinder 1, two bearings are fixedly sleeved on the second rotating shaft 16, outer rings of the two bearings are fixedly connected with the inner walls of the corresponding mounting holes 15 respectively, bristles are fixedly mounted on one side, away from the second rotating shaft 16, of the brush plate 19 and are in contact with the dustproof filter screen 4 on one side of the air inlet cylinder 3, and the device passes through the main air cylinder 1, the exhaust air cylinder 2, the air inlet cylinder 3, the dustproof filter screen 4, the mounting plate 5, the motor 6, the fan blades 7, the support columns 8, the sliding groove 9, the sliding rod 10, the spring 11, the first, The mounting hole 15, the second rotating shaft 16, the second belt pulley 17, the second belt 18, the brush plate 19, the silencing cotton 20 and the first rotating shaft 21 are matched, the motor 6 is started to work, the motor 6 drives the fan blades 7 to rotate, air enters from the air inlet cylinder 3 and is discharged from the air outlet cylinder 2, the two dustproof filter screens 4 can be used for blocking and filtering dust impurities in the outside air, when the motor 6 rotates, an output shaft of the motor 6 drives the corresponding first belt pulley 12 to rotate, under the transmission action of the first belt 13, the two first belt pulleys 12 and the first rotating shaft 21 rotate simultaneously, under the transmission of the second belt 18, the first rotating shaft 21 drives the two second belt pulleys 17 and the second rotating shaft 16 to rotate simultaneously, the second rotating shaft 16 drives the brush plate 19 and the brush bristles to rotate, the dustproof filter screens 4 on one side of the air inlet cylinder 3 can be cleaned by the brush bristles, the dust impurities are prevented from being gathered and adhered to the dustproof filter screens 4 to block the mesh holes, when the motor 6 runs, vibration and slight amplitude can be generated, the vibration force generated by the motor 6 is transmitted to the mounting plate 5 and the four slide bars 10, the four slide bars 10 respectively slide in the corresponding chutes 9 in small amplitude, the balls roll on the slide bars 10, and the four springs 11 deform to generate elastic force, so that the vibration force generated by the motor 6 can be damped and buffered by utilizing the elastic force of the four springs 11, the influence on the stability of the installation of the jet fan due to the vibration of the motor 6 is avoided, the service life of the motor 6 is prolonged, and the noise reduction function can be realized by utilizing the sound absorption cotton 20. the utility model has the advantages of reasonable design and clear principle, can damp and buffer the vibration force generated by the motor 6, can drive the brush plate 19 and the brush hair to rotate while supplying air, can clean the dustproof filter screen 4 on one side of the air inlet cylinder 3 by utilizing the brush hair, and prevent the foreign dust from gathering and adhering on the dustproof filter screen 4 to block up the, the ventilation is smooth, and the air conditioner is suitable for wide popularization and application.

The working principle is as follows: the motor 6 is electrically connected with a municipal power supply through a wire, the bristles are made of soft nylon materials, the motor 6 is started to work, the motor 6 drives the fan blades 7 to rotate, air enters from the air inlet cylinder 3 and is discharged from the air outlet cylinder 2, the two dustproof filter screens 4 can block and filter dust impurities in the outside air to prevent the dust impurities from entering the main air cylinder 1, when the motor 6 rotates, the output shaft of the motor 6 drives the corresponding first belt pulley 12 to rotate, under the transmission action of the first belt 13, the two first belt pulleys 12 and the first rotating shaft 21 rotate simultaneously, under the transmission action of the second belt 18, the first rotating shaft 21 drives the two second belt pulleys 17 and the second rotating shaft 16 to rotate simultaneously, the second rotating shaft 16 drives the brush plate 19 and the bristles to rotate, so that the dustproof filter screens 4 on one side of the air inlet cylinder 3 can be cleaned by the bristles, the dust impurities are prevented from gathering and adhering to block meshes on the dustproof filter screens, influence the flow of wind, when motor 6 moves, can produce vibration and slight amplitude, the vibrational force that motor 6 produced transmits for mounting panel 5 and four slide bars 10, four slide bars 10 slide at corresponding spout 9 interior small amplitude respectively, the ball rolls on slide bar 10, four springs 11 take place to warp and produce elasticity, thereby utilize the elastic force effect of four springs 11, can carry out the shock attenuation buffering to the vibrational force that motor 6 produced, avoided influencing the stability of jet fan installation because motor 6's vibration, and the life of extension motor 6, the sound cotton 20 is inhaled in the utilization can carry out the amortization to the noise that the air current produced, play the effect of making an uproar of falling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a jet fan, includes main dryer (1), its characterized in that: the dust-proof air conditioner is characterized in that a discharge air cylinder (2) and an air inlet cylinder (3) are respectively and fixedly mounted on two sides of a main air cylinder (1), a dust-proof filter screen (4) is fixedly mounted on one side, away from each other, of the discharge air cylinder (2) and the air inlet cylinder (3), a mounting plate (5) is arranged in the main air cylinder (1), a motor (6) is fixedly mounted at the top of the mounting plate (5), four fan blades (7) are fixedly mounted on an output shaft of the motor (6), the four fan blades (7) are arranged in an equally-spaced annular manner, four supporting columns (8) are fixedly mounted on the inner wall of the bottom of the main air cylinder (1), the four supporting columns (8) are symmetrically arranged in pairs, sliding grooves (9) are formed in the tops of the four supporting columns (8), sliding rods (10) are slidably mounted in the four sliding grooves (9), the top ends of the sliding rods (10) extend, the top parts of the four supporting columns (8) are fixedly provided with springs (11) sleeved on corresponding sliding rods (10), the top ends of the four springs (11) are fixedly arranged at the bottom of the mounting plate (5), a first rotating shaft (21) positioned above the motor (6) is arranged in the main air duct (1), one end of the first rotating shaft (21) and an output shaft of the motor (6) are fixedly sleeved with first belt pulleys (12), two first belt pulleys (12) are sleeved with the same first belt (13), two supporting plates (14) are fixedly arranged in the air inlet duct (3), mounting holes (15) are respectively formed in one sides of the two supporting plates (14) close to each other, the same second rotating shaft (16) is fixedly arranged in the two mounting holes (15), two ends of the second rotating shaft (16) extend out of the corresponding mounting holes (15), and one end of the second rotating shaft (16) extends into the main air duct (1), one end of the second rotating shaft (16) located in the main air duct (1) and one end of the first rotating shaft (21) far away from the first belt pulley (12) are fixedly sleeved with a second belt pulley (17), two second belt pulleys (17) are sleeved with the same second belt (18), and one end of the second rotating shaft (16) far away from the second belt pulley (17) is fixedly provided with a brush plate (19).

2. A jet fan as claimed in claim 1, wherein: silencing cotton (20) are fixedly arranged on the inner walls of the air exhaust barrel (2) and the air inlet barrel (3).

3. A jet fan as claimed in claim 1, wherein: four balls are nested on the inner wall of the sliding groove (9), the four balls are arranged in an equidistant annular mode, and the four balls are in rolling contact with the sliding rod (10).

4. A jet fan as claimed in claim 1, wherein: the first rotating shaft (21) is rotatably sleeved with two positioning blocks, and the two positioning blocks are fixedly mounted on the inner wall of the top of the main air duct (1).

5. A jet fan as claimed in claim 1, wherein: two bearings are fixedly sleeved on the second rotating shaft (16), and outer rings of the two bearings are fixedly connected with the inner walls of the corresponding mounting holes (15) respectively.

6. A jet fan as claimed in claim 1, wherein: and one side of the brush plate (19) far away from the second rotating shaft (16) is fixedly provided with brush hair, and the brush hair is contacted with the dustproof filter screen (4) on one side of the air inlet cylinder (3).