CN210106271U

CN210106271U - Centrifugal fan convenient to it is clean

Info

Publication number: CN210106271U
Application number: CN201921081361.8U
Authority: CN
Inventors: 印康伟; 盛峰
Original assignee: Cologne General Equipment (suzhou) Co Ltd
Current assignee: Cologne General Equipment (suzhou) Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-02-21
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a centrifugal fan convenient for cleaning, which belongs to the field of centrifugal fans and comprises a volute, an impeller arranged in the volute and a motor arranged at the side end of the volute, wherein a rotating rod is connected between the rotating ends of the impeller and the motor and penetrates through the side wall of the volute, the volute is provided with a communicated air inlet hole and an air outlet hole, a filter screen is arranged in the air inlet hole, the upper end and the lower end of the filter screen are fixedly connected with a rotating shaft, the inner end of the air inlet hole is provided with a rotating groove matched with the rotating shaft, the rotating shaft is rotationally connected in the rotating groove, the front end of the volute is provided with a pair of slideways which are respectively positioned at the two sides of the filter screen, the slideways are internally and slidably connected with a sliding rod, and a compression spring is fixedly connected between the sliding rod and the inner wall of the slideway, which is far away from one side, thereby facilitating air intake of the filter screen.

Description

Centrifugal fan convenient to it is clean

Technical Field

The utility model relates to a centrifugal fan field, more specifically say, relate to a centrifugal fan convenient to it is clean.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Centrifugal fan comprises spiral case, the main shaft, the impeller, bearing drive mechanism and motor etc. be equipped with air inlet and gas outlet on the spiral case, be equipped with the filter screen in the air inlet generally, be arranged in the dust in the filtered air, make it be difficult for piling up inside the spiral case, however, the filter screen passes through the screw fixation in air inlet department usually, difficult dismantlement, therefore, under the condition of not dismantling the screw, can only clean the filter screen when using the brush to the filter screen deashing and be located that the spiral case outside, the another side is difficult clean, thereby lead to the dust clean not thorough, it is clean once for a long time just need once more after the cleanness, very troublesome.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a centrifugal fan convenient to it is clean, it can realize being convenient for carry out two-sided cleanness to the filter screen, makes the difficult filter screen that blocks up of dust to the air inlet of the filter screen of being convenient for.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A centrifugal fan convenient to clean comprises a volute, an impeller arranged in the volute and a motor arranged at the side end of the volute, wherein a rotating rod is connected between the rotating ends of the impeller and the motor and penetrates through the side wall of the volute, the volute is provided with a communicated air inlet and an air outlet, a filter screen is arranged in the air inlet, rotating shafts are fixedly connected with the upper end and the lower end of the filter screen, a rotating groove matched with the rotating shaft is formed in the inner end of the air inlet, the rotating shafts are rotatably connected in the rotating groove, a pair of slide ways are formed in the front end of the volute and are respectively positioned at two sides of the filter screen, a slide rod is connected in the slide ways in a sliding mode, a compression spring is fixedly connected between the inner walls of one side, away from the filter screen, of the slide rod and the inner wall of the slide way, limiting rods are fixedly connected with the front end, can realize being convenient for carry out two-sided cleanness to the filter screen, make the difficult filter screen that blocks up of dust to the air inlet of the filter screen of being convenient for.

Furthermore, the front end fixedly connected with handle bar of the gag lever post of the spiral case outside, convenient to use person is to the removal of gag lever post, the outer end fixedly connected with of handle bar has mellow dull polish granule, increases the friction between finger and the handle bar.

Furthermore, the outer end of the filter screen is wrapped by a sealing ring, and the sealing ring is positioned between the inner walls of the filter screen and the air inlet hole, so that dust is not easy to enter from a gap between the filter screen and the air inlet hole.

Furthermore, the distance between the inner walls of the impeller and the volute, which are close to one side of the filter screen, is larger than the diameter of the filter screen, so that the filter screen is not easy to contact with the impeller when rotating, and the operation of the impeller is influenced.

Further, a plurality of bouncing balls of one end fixedly connected with that the gag lever post is close to the slide bar, the bouncing ball is located one side that is close to the filter screen on the gag lever post, and the bouncing ball keeps away from the one end of gag lever post and contacts with the lateral wall of filter screen, and elasticity through the bouncing ball makes a pair of gag lever post better to the fixed effect of filter screen, makes the filter screen place more stably.

Further, the length of gag lever post is greater than the slide and is close to the distance between the inner wall of compression spring one side and the filter screen outer wall, the width of gag lever post is greater than the notch department width of slide, can seal the slide through the gag lever post, makes the dust be difficult for getting into inside the spiral case through the slide.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can realize being convenient for carry out two-sided cleanness to the filter screen, makes the difficult filter screen that blocks up of dust to the air inlet of the filter screen of being convenient for.

(2) The front end fixedly connected with handle bar that is located the gag lever post in the spiral case outside, convenient to use person is to the removal of gag lever post, and the outer end fixedly connected with of handle bar is mellow and full dull polish granule, increases the friction between finger and the handle bar.

(3) The outer end of the filter screen is wrapped by a sealing ring, and the sealing ring is positioned between the inner walls of the filter screen and the air inlet hole, so that dust is not easy to enter from a gap between the filter screen and the air inlet hole.

(4) The distance between the impeller and the inner wall of the volute close to one side of the filter screen is larger than the diameter of the filter screen, so that the filter screen is not easy to contact with the impeller when rotating, and the operation of the impeller is influenced.

(5) The one end fixedly connected with a plurality of bouncing balls that the gag lever post is close to the slide bar, and the bouncing ball is located the one side that is close to the filter screen on the gag lever post, and the bouncing ball keeps away from the one end of gag lever post and contacts with the lateral wall of filter screen, and the elasticity through the bouncing ball makes a pair of gag lever post better to the fixed effect of filter screen, makes the filter screen place more stably.

(6) The length of the limiting rod is greater than the distance between the inner wall of one side of the compression spring close to the slide way and the outer wall of the filter screen, the width of the limiting rod is greater than the width of the notch of the slide way, the slide way can be sealed through the limiting rod, and dust is not easy to enter the interior of the volute through the slide way.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a schematic side view of the filter screen of the present invention after rotating to a position perpendicular to fig. 1;

fig. 3 is a schematic top view of the present invention.

The reference numbers in the figures illustrate:

1 volute, 2 impellers, 3 air inlets, 4 air outlets, 5 filter screens, 6 rotating shafts, 7 rotating grooves, 8 slideways, 9 sliding rods, 10 compression springs, 11 limiting rods, 12 elastic balls, 13 handle rods and 14 sealing rings.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a centrifugal fan convenient for cleaning includes a volute 1, an impeller 2 disposed in the volute 1, and a motor mounted at a side end of the volute 1, wherein a dust outlet may be drilled at a lower end of the volute 1, a plug is plugged in the dust outlet, the dust outlet is convenient for a user to clean dust entering the volute 1, a rotating rod is connected between the impeller 2 and the rotating end of the motor, the rotating rod penetrates through a side wall of the volute 1, an air inlet 3 and an air outlet 4 which are communicated with each other are drilled on the volute 1, a filter screen 5 is disposed in the air inlet 3, rotating shafts 6 are fixedly connected to upper and lower ends of the filter screen 5, rotating grooves 7 matched with the rotating shafts 6 are drilled at inner ends of the air inlet 3, and the rotating shafts 6 are rotatably connected to the rotating grooves 7.

The front end fixedly connected with handle bar 13 that is located the gag lever post 11 in the spiral case 1 outside, convenient to use person is to gag lever post 11's removal, the outer end fixedly connected with mellow and full dull polish granule of handle bar 13, increase the friction between finger and handle bar 13, the outer end parcel of filter screen 5 has sealing washer 14, and sealing washer 14 is located between the inner wall of filter screen 5 and inlet port 3, make the difficult gap between filter screen 5 and inlet port 3 of following of dust get into, impeller 2 is greater than the diameter of filter screen 5 with the distance between the inner wall that spiral case 1 is close to filter screen 5 one side, be difficult for contacting with impeller 2 when making filter screen 5 rotate, influence impeller 2's function.

Referring to fig. 3, a pair of slideways 8 are cut at the front end of the volute 1, the slideways 8 are respectively located on two sides of the filter screen 5, a slide bar 9 is slidably connected in the slideways 8, a compression spring 10 is fixedly connected between the slide bar 9 and the inner wall of the side of the slideway 8 far away from the filter screen 5, limiting rods 11 are fixedly connected to the front end and the rear end of the slide bar 9, the limiting rods 11 are respectively located on the front side and the rear side of the filter screen 5, the slideways 8 and the slide bar 9 are square and matched with each other, and the limiting rods 11 are not easy to rotate.

A plurality of bouncing balls 12 of one end fixedly connected with that gag lever post 11 is close to slide bar 9, bouncing ball 12 is located one side that is close to filter screen 5 on gag lever post 11, and bouncing ball 12 keeps away from the one end of gag lever post 11 and the lateral wall of filter screen 5 contacts, elasticity through bouncing ball 12 makes a pair of gag lever post 11 better to the fixed effect of filter screen 5, it is more stable to make filter screen 5 place, gag lever post 11's length is greater than the distance between inner wall and the filter screen 5 outer wall that slide 8 is close to compression spring 10 one side, gag lever post 11's width is greater than slide 8's notch department width, can seal slide 8 through gag lever post 11, make the dust be difficult for getting into inside volute 1 through slide 8.

When gathering the dust on filter screen 5 and needing cleanly, the user can take the brush to sweep the adnexed dust of 5 front ends of filter screen down, when needs are to filter screen 5 rear end be that filter screen 5 is located that of spiral case 1 inboard when clean, the user can stimulate a pair of gag lever post 11 to the outside, a pair of gag lever post 11 extrudees compression spring 10, the stopping of gag lever post 11 has not been had, rotatable filter screen 5 makes the front and back end replacement of filter screen 5 this moment, it fixes to the position of filter screen 5 to loosen gag lever post 11 again, then just can clean the other end of filter screen 5, can realize being convenient for carry out two-sided cleanness to filter screen 5, make the dust be difficult for blockking up filter screen 5, thereby the air inlet of filter screen.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a centrifugal fan convenient to it is clean, includes spiral case (1), sets up impeller (2) in spiral case (1) and installs the motor at spiral case (1) side, be connected with the bull stick between the rotation end of impeller (2) and motor, and the bull stick runs through the lateral wall of spiral case (1), its characterized in that: an air inlet (3) and an air outlet (4) which are communicated are drilled on the volute (1), a filter screen (5) is arranged in the air inlet hole (3), the upper end and the lower end of the filter screen (5) are fixedly connected with a rotating shaft (6), the inner end of the air inlet hole (3) is provided with a rotary groove (7) matched with the rotary shaft (6), and the rotating shaft (6) is rotatably connected in the rotating groove (7), the front end of the volute (1) is provided with a pair of slideways (8), and a pair of slideways (8) are respectively positioned at the two sides of the filter screen (5), a slide bar (9) is connected in the slideways (8) in a sliding way, a compression spring (10) is fixedly connected between the slide bar (9) and the inner wall of one side of the slide way (8) far away from the filter screen (5), the front end and the rear end of the slide bar (9) are both fixedly connected with limit rods (11), and the pair of limiting rods (11) are respectively positioned at the front side and the rear side of the filter screen (5).

2. The centrifugal fan convenient to clean as claimed in claim 1, wherein: the front end of a limiting rod (11) positioned at the outer side of the volute (1) is fixedly connected with a handle rod (13).

3. The centrifugal fan convenient to clean as claimed in claim 2, wherein: the outer end of the handle rod (13) is fixedly connected with round frosted particles.

4. The centrifugal fan convenient to clean as claimed in claim 1, wherein: the outer end of the filter screen (5) is wrapped with a sealing ring (14), and the sealing ring (14) is located between the inner walls of the filter screen (5) and the air inlet hole (3).

5. The centrifugal fan convenient to clean as claimed in claim 1, wherein: the distance between the impeller (2) and the inner wall of the volute (1) close to one side of the filter screen (5) is larger than the diameter of the filter screen (5).

6. The centrifugal fan convenient to clean as claimed in claim 1, wherein: a plurality of bouncing balls (12) are fixedly connected to one end, close to the sliding rod (9), of the limiting rod (11), the bouncing balls (12) are located on one side, close to the filter screen (5), of the limiting rod (11), and one end, far away from the limiting rod (11), of the bouncing balls (12) is in contact with the side wall of the filter screen (5).

7. The centrifugal fan convenient to clean as claimed in claim 1, wherein: the length of gag lever post (11) is greater than slide (8) and is close to the distance between the inner wall of compression spring (10) one side and filter screen (5) outer wall, the width of gag lever post (11) is greater than the notch department width of slide (8).