CN214887818U

CN214887818U - Negative-pressure air fan with waterproof and dustproof performances

Info

Publication number: CN214887818U
Application number: CN202120540420.4U
Authority: CN
Inventors: 商晓莹; 李海静
Original assignee: Shandong Lufeng Intelligent Equipment Co ltd
Current assignee: Shandong Lufeng Intelligent Equipment Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-26
Anticipated expiration: 2031-03-16

Abstract

The utility model provides a negative-pressure air fan with waterproof dustproof performance, including both ends open-ended barrel, barrel one end opening fixed mounting has the protection network, barrel inner chamber fixed mounting has the bracing piece, the bracing piece is protection network one side fixed mounting dorsad has the motor, fixed mounting has the flabellum on the motor output shaft, the barrel other end is equipped with the rectangle box of opening dorsad barrel, the barrel other end corresponds terminal surface fixed connection and inner chamber with the rectangle box and communicates with each other, both sides vertically are equipped with respectively about the rectangle box inner chamber and change the roller, both ends all correspond inner wall bearing with the rectangle box around changing the roller and are connected. The dustproof fan not only realizes the dustproof function of the fan, but also realizes the automatic cleaning function of the filter cloth by means of the rotary filter cloth and the brush pipe, and the functions can be realized only by means of the motor power of the fan without adding an additional power device.

Description

Negative-pressure air fan with waterproof and dustproof performances

Technical Field

The utility model belongs to workshop ventilation field, specifically speaking are negative-pressure air fan with waterproof dustproof performance.

Background

Some workshops with raise dust pollution need be satisfied ventilation and avoid the dust by outside the direct discharge workshop, too much dust also can make the efficiency of taking a breath and the life-span of fan receive the influence on attached to fan flabellum and motor, installs the filter screen for the fan is additional simply, and the filter screen will block up after using a period, can influence the efficiency of taking a breath equally.

SUMMERY OF THE UTILITY MODEL

The utility model provides a negative-pressure air fan with waterproof dustproof performance for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a negative pressure fan with waterproof and dustproof performances comprises a barrel body with openings at two ends, a protective net is fixedly installed at the opening at one end of the barrel body, a support rod is fixedly installed in an inner cavity of the barrel body, a motor is fixedly installed at one side of the support rod, which is opposite to the protective net, a fan blade is fixedly installed on an output shaft of the motor, a rectangular box with an opening opposite to the barrel body is arranged at the other end of the barrel body, the other end of the barrel body is fixedly connected with a corresponding end face of the rectangular box and is communicated with the inner cavity, rotating rollers are longitudinally arranged at the upper side and the lower side of the inner cavity of the rectangular box respectively, the front end and the rear end of each rotating roller are connected with a corresponding inner wall bearing of the rectangular box, annular filter cloth is installed at the periphery of the two rotating rollers at the lower side, a first belt wheel is fixedly installed at the rear end of the rotating roller at the lower side, the output shaft of the motor extends to the inner cavity of the rectangular box and is fixedly installed with a worm, a longitudinal shaft is arranged in the inner cavity of the rectangular box, the longitudinal shaft is connected with the corresponding inner wall bearings at the front end and the front end of the longitudinal shaft, the worm wheel meshes with the worm mutually, and axis of ordinates periphery still fixed mounting has the second band pulley, is connected through the belt between second band pulley and the first band pulley, and downside commentaries on classics roller front end fixed mounting has the third band pulley, and rectangle box inner chamber lower part vertically is equipped with the brush roller, and both ends all correspond the inner wall bearing with the rectangle box around the brush roller and are connected, and brush roller front end fixed mounting has the fourth band pulley, is connected through the belt between fourth band pulley and the third band pulley.

According to the negative pressure fan with the waterproof and dustproof performances, the dust collecting box is fixedly installed on the bottom surface of the rectangular box, the top surface of the dust collecting box is open and communicated with the inner cavity of the rectangular box, and the dust collecting box is located below the brush roller.

According to the negative pressure air fan with the waterproof and dustproof performances, the rain shield is fixedly mounted on one side, facing the protective net, of the top surface of the barrel.

According to the negative pressure fan with the waterproof and dustproof performance, the circle of sealing strip is installed on the inner wall of the rectangular box in a surrounding mode.

The utility model has the advantages that: when the filter cloth is used, after the motor is electrified, the fan blades can be driven to rotate to ventilate, meanwhile, the worm gear and the worm can drive the longitudinal shaft to rotate clockwise, the longitudinal shaft drives the lower rotating rod to rotate clockwise through the belt, the rotating rod drives the filter cloth to rotate on the one hand, and drives the brush roller to rotate clockwise through the belt on the other hand, and the brush roller can continuously brush down dust on the filter cloth, so that the air permeability of the filter cloth is kept, and the filter cloth is prevented from being blocked after being used for a period of time to influence ventilation; the dustproof fan not only realizes the dustproof function of the fan, but also realizes the automatic cleaning function of the filter cloth by means of the rotary filter cloth and the brush pipe, and the functions can be realized only by means of the motor power of the fan without adding an additional power device.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A negative-pressure air blower with waterproof and dustproof performances comprises a barrel body 1 with openings at two ends, a protective net 11 is fixedly installed at one end of the barrel body 1 with an opening, a support rod 12 is fixedly installed in an inner cavity of the barrel body 1, two ends of the support rod 12 are fixedly connected with the inner wall of the barrel body 1, a motor 13 is fixedly installed at one side of the support rod 12, which is back to the protective net, a fan blade 14 is fixedly installed on an output shaft of the motor 13, a rectangular box 2 with an opening back to the barrel body 1 is arranged at the other end of the barrel body 1, the other end of the barrel body 1 is fixedly connected with the corresponding end face of the rectangular box 2 and is communicated with the inner cavity, rotating rollers 21 are respectively and longitudinally arranged at the upper side and the lower side of the inner cavity of the rectangular box 2, the front end and the rear end of each rotating roller 21 are respectively connected with a corresponding inner wall bearing of the rectangular box 2, annular filter cloth 22 is commonly installed at the peripheries of the two rotating rollers 21, a first belt wheel is fixedly installed at the rear end of the lower side of the rotating rollers 21, the output shaft of the motor 13 extends to the inner cavity of the rectangular box 2 and is fixedly installed with a worm 15, be equipped with axis of ordinates 23 in the 2 inner chambers of rectangle box, axis of ordinates 23 is located the top of worm 15, both ends all correspond inner wall bearing with rectangle box 2 around axis of ordinates 23 are connected, fixed mounting has turbine 24 on the 23 periphery of axis of ordinates, turbine 24 meshes with worm 15 mutually, 23 periphery of axis of ordinates still fixed mounting has second band pulley 25, be connected through the belt between second band pulley 25 and the first band pulley, downside is changeed roller 21 front end fixed mounting and is had

third band pulley

26, 2 inner chamber lower parts of rectangle box vertically are equipped with brush roller 27, both ends all correspond inner wall bearing with rectangle box 2 around brush roller 27 and are connected, brush roller 27 front end fixed mounting has fourth band pulley 28, the diameter of fourth band pulley 28 is less than the diameter of third band pulley 26, be connected through the belt between fourth band pulley 28 and the third band pulley 26. When the filter cloth is used, after the motor 13 is electrified, the fan blades 14 are driven to rotate for air exchange, meanwhile, the worm gear and worm drives the longitudinal shaft 23 to rotate clockwise, the lower side rotating rod 21 is driven by the longitudinal shaft 23 to rotate clockwise through the belt, the filter cloth 22 is driven by the rotating rod 21 to rotate, the brush roller 27 is driven by the belt to rotate clockwise, and the brush roller 27 continuously brushes down dust on the filter cloth 22, so that the air permeability of the filter cloth 22 is kept, and the filter cloth 22 is prevented from being blocked after being used for a period of time to influence air exchange; the dustproof fan not only realizes the dustproof function of the fan, but also realizes the automatic cleaning function of the filter cloth 22 by virtue of the rotary filter cloth 22 and the brush pipe 27, and the functions can be realized only by virtue of the motor power of the fan without adding an additional power device.

Specifically, as shown in fig. 1, the dust collecting box 4 is fixedly installed on the bottom surface of the rectangular box 2, the top surface of the dust collecting box 4 is open and is communicated with the inner cavity of the rectangular box 2, and the dust collecting box 4 is located below the brush roller 27. The dust brushed down from the brush roller 27 falls into the dust collecting case 4, facilitating the collection and uniform cleaning by the user.

Specifically, as shown in fig. 1, a rain shield 5 is fixedly mounted on the top surface of the barrel 1 facing the protection net 11. The rain shield 5 can shield falling raindrops to avoid short circuit of the motor 13 due to water inflow.

Further, as shown in fig. 1, a circle of sealing strip 6 is arranged around the inner wall of the rectangular box 2 in the embodiment. The sealing strip 6 can seal the gap between the edge of the filter cloth 22 and the rectangular box 2, and dust is prevented from being directly discharged from the gap.

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

Claims

1. The utility model provides a negative-pressure air fan with waterproof dustproof performance, includes both ends open-ended barrel (1), barrel (1) one end opening fixed mounting has protection network (11), and barrel (1) inner chamber fixed mounting has bracing piece (12), and bracing piece (12) are protection network one side fixed mounting dorsad has motor (13), and fixed mounting has flabellum (14), its characterized in that on motor (13) output shaft: the other end of the barrel body (1) is provided with a rectangular box (2) with an opening back to the barrel body (1), the other end of the barrel body (1) is fixedly connected with the corresponding end face of the rectangular box (2) and the inner cavity of the rectangular box is communicated, the upper side and the lower side of the inner cavity of the rectangular box (2) are respectively and longitudinally provided with a rotating roller (21), the front end and the rear end of each rotating roller (21) are respectively connected with the corresponding inner wall bearing of the rectangular box (2), annular filter cloth (22) is jointly arranged on the peripheries of the two rotating rollers (21), the rear end of the lower rotating roller (21) is fixedly provided with a first belt wheel, an output shaft of a motor (13) extends into the inner cavity of the rectangular box (2) and is fixedly provided with a worm (15), a longitudinal shaft (23) is arranged in the inner cavity of the rectangular box (2), the front end and the rear end of the longitudinal shaft (23) are respectively connected with the corresponding inner wall bearing of the rectangular box (2), a turbine (24) is fixedly arranged on the periphery of the longitudinal shaft (23), and the turbine (24) is meshed with the worm (15), the axis of ordinates (23) periphery is fixed mounting still has second band pulley (25), be connected through the belt between second band pulley (25) and the first band pulley, downside changes roller (21) front end fixed mounting has third band pulley (26), rectangle box (2) inner chamber lower part vertically is equipped with brush roller (27), both ends all correspond inner wall bearing with rectangle box (2) around brush roller (27) are connected, brush roller (27) front end fixed mounting has fourth band pulley (28), be connected through the belt between fourth band pulley (28) and third band pulley (26).

2. The negative-pressure air blower with waterproof and dustproof performances of claim 1, wherein: the bottom surface of the rectangular box (2) is fixedly provided with a dust collection box (4), the top surface of the dust collection box (4) is open and communicated with the inner cavity of the rectangular box (2), and the dust collection box (4) is positioned below the brush roller (27).

3. The negative-pressure air blower with waterproof and dustproof performances of claim 1, wherein: and a rain shield (5) is fixedly arranged on one side, facing the protective net (11), of the top surface of the barrel body (1).

4. The negative-pressure air blower with waterproof and dustproof performances of claim 1, wherein: the inner wall of the rectangular box (2) is provided with a circle of sealing strip (6) in a surrounding way.