CN210738862U

CN210738862U - Multi-air-duct centrifugal fan

Info

Publication number: CN210738862U
Application number: CN201921600634.5U
Authority: CN
Inventors: 曾学礼
Original assignee: Beihai Xinnian Fan Manufacturing Co Ltd
Current assignee: Beihai Xinnian Fan Manufacturing Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-12
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a multi-wind channel centrifugal fan, including fan shell, the air intake has been seted up at fan shell top, and fan shell top outer wall has seted up the circular recess, fan shell top outer wall is provided with a filter screen section of thick bamboo, and filter screen section of thick bamboo top outer wall installs the handle, it has the play tuber pipe of equidistance distribution to peg graft to fan shell circumference outer wall, the air-out pipe inner wall has all been pasted the amortization sponge, fixed casing is installed to fan shell bottom outer wall, and fixed casing bottom inner wall installs the motor. The utility model discloses in, inside inserting the circular recess on the fan shell with a filter screen section of thick bamboo before the use, come to block external dust and large granule wadding thing etc. and stop, avoid the dust to collect together on amortization sponge and impeller, guaranteed impeller operational environment, make it can normally work, and a filter screen section of thick bamboo can carry out the quick replacement clearance through the handle, and the staff of being convenient for uses.

Description

Multi-air-duct centrifugal fan

Technical Field

The utility model relates to a centrifugal fan technical field especially relates to a multicavity wind channel centrifugal fan.

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.

Present centrifugal fan uses the heat dissipation of airing exhaust of mill, but present centrifugal fan only has an air exit, and the scope that the air current blown is limited, can not consider all people around, and be not convenient for use, and present centrifugal extension air intake does not have dust filtering mechanism, if the impeller can be twined in external floater entering centrifugal extension, leads to the centrifugal extension to damage, consequently needs a many wind channels and has air filtering function's centrifugal fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the multi-wind channel centrifugal fan who provides, the problem that can effectual solution background art propose.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a multi-wind channel centrifugal fan, includes fan housing, the air intake has been seted up at fan housing top, and fan housing top outer wall has seted up circular recess, fan housing top outer wall is provided with the filter screen section of thick bamboo, and filter screen section of thick bamboo top outer wall installs the handle, fan housing circumference outer wall is pegged graft and is had the play tuber pipe of equidistance distribution.

Preferably, the inner walls of the air outlet pipes are adhered with sound-deadening sponges.

Preferably, the outer wall of the bottom of the fan shell is provided with a fixed shell, and the inner wall of the bottom of the fixed shell is provided with a motor.

Preferably, the output end of the motor is provided with an output shaft, the output shaft extends into the fan shell, and the outer wall of the top of the output shaft is provided with an impeller.

Preferably, the inner wall of the fixed shell is provided with heat conducting fins, and the circumferential outer walls of the heat conducting fins are inserted with radiating fins distributed at equal intervals.

Preferably, the base is installed to fixed casing bottom outer wall, and base bottom outer wall four corners all installs the universal wheel, and the push rod is installed to base one side outer wall.

Preferably, the outer wall of one side of the top of the fan shell is rotatably connected with a rotating shaft, the outer wall of the top of the rotating shaft is provided with a connecting block, and the outer wall of one side of the top of the connecting block is rotatably connected with a threaded rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through being provided with conducting strip and fin, can dispel the heat to the motor in the work, avoid motor long-time work and damage under the high temperature, improve the life of motor, through being provided with the amortization sponge, can effectively reduce the noise that the air current strikes the air-out pipe inner wall, played the effect of noise reduction.

2. Inside inserting the circular recess on the fan shell with a filter screen section of thick bamboo before the use, come to block external dust and large granule wadding thing etc. and stop, avoid the dust to save together on amortization sponge and impeller, guaranteed impeller operational environment, make it can normally work, and a filter screen section of thick bamboo can carry out quick replacement clearance through the handle, and the staff of being convenient for uses.

3. Through being provided with a plurality of tuber pipes, improved centrifugal fan's air-out scope, the people of being convenient for use, embodiment 2 is through being provided with the rotation axis, rotates filter screen section of thick bamboo top with the connecting block, then rotates the screw rod and fixes filter screen section of thick bamboo, takes place to rock when avoiding filter screen section of thick bamboo work and removing, has improved fixed stability.

Drawings

Fig. 1 is a schematic view of a multi-duct centrifugal fan according to the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of a multi-duct centrifugal fan provided by the present invention;

fig. 3 is a schematic view of a local structure of embodiment 2 of a multi-duct centrifugal fan provided by the present invention.

In the figure: 1 circular groove, 2 fan shells, 3 radiating fins, 4 universal wheels, 5 bases, 6 fixed shells, 7 push rods, 8 silencing sponges, 9 air outlet pipes, 10 air inlets, 11 handles, 12 filter screen cylinders, 13 motors, 14 heat-conducting fins, 15 impellers, 16 rotating shafts and 17 connecting blocks.

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.

Example 1

Referring to fig. 1-2, a multi-duct centrifugal fan comprises a fan housing 2, an air inlet 10 is formed in the top of the fan housing 2, a circular groove 1 is formed in the outer wall of the top of the fan housing 2, a filter screen cylinder 12 is arranged on the outer wall of the top of the fan housing 2, a handle 11 is mounted on the outer wall of the top of the filter screen cylinder 12, an anti-slip leather sheath is sleeved on the outer wall of the circumference of the handle 11, the filter screen cylinder 12 is matched with the circular groove 1, and air outlet pipes 9 which are distributed equidistantly are inserted into the outer wall of the.

In the utility model, the inner wall of the air outlet pipe 9 is pasted with the sound attenuation sponge 8, which can effectively reduce the noise of the air flow impacting the inner wall of the air outlet pipe 9 and plays the role of reducing the noise, the outer wall of the bottom of the fan shell 2 is provided with the fixed shell 6, and the inner wall of the bottom of the fixed shell 6 is provided with a motor 13, the output end of the motor 13 is provided with an output shaft, the output shaft extends into the blower shell 2, the outer wall of the top of the output shaft is provided with an impeller 15, the inner wall of the fixed shell 6 is provided with a heat conducting fin 14, and the heat-conducting fins 14 are inserted with the radiating fins 3 distributed at equal intervals on the outer wall of the circumference, the radiating fins 3 extend to the outside of the fixed shell 6, the base 5 is arranged on the outer wall of the bottom of the fixed shell 6, and universal wheels 4 are all installed at the four corners of the outer wall of the bottom of the base 5, a push rod 7 is installed on the outer wall of one side of the base 5, the motor 13 is connected with a switch through a wire, and the switch is connected with a power supply through a wire.

The working principle is as follows: in the idle position of the device, all driving parts, namely power elements, electric devices and adaptive power supplies, are connected through leads, and specific connecting means refer to the following working principle that the electric devices are electrically connected in sequence.

Insert filter screen cylinder 12 inside circular groove 1 on fan housing 2 during the use, come to block external dust and large granule wadding thing etc. and block, avoid the dust to save on amortization sponge 8 and impeller 15, impeller 15 operational environment has been guaranteed, make it normally work, and filter screen cylinder 12 can carry out quick replacement clearance through handle 11, the staff of being convenient for uses, through being provided with conducting strip 14 and fin 3, can dispel the heat to the motor 13 of work, avoid motor 13 long-time work under the high temperature and damage, the life of motor 13 has been improved, through being provided with amortization sponge 8, can effectively reduce the noise that the air current strikes out the tuber pipe 9 inner wall, the effect of noise reduction has been played.

Example 2

Referring to fig. 1-3, a multi-duct centrifugal fan further comprises a rotating shaft 16 rotatably connected to the outer wall of one side of the top of the fan housing 2, a connecting block 17 is mounted on the outer wall of the top of the rotating shaft 16, and a threaded rod is rotatably connected to the outer wall of one side of the top of the connecting block 17.

The working principle is as follows: compared with the embodiment 1, the connecting block 17 is rotated above the filter screen cylinder 12 by arranging the rotating shaft 16, and then the threaded rod is rotated to fix the filter screen cylinder 12, so that the filter screen cylinder 12 is prevented from shaking during working and moving, and the stability of fixation is improved.

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 multiple duct centrifugal fan, includes fan shell (2), its characterized in that, air intake (10) have been seted up at fan shell (2) top, and fan shell (2) top outer wall has seted up circular slot (1), fan shell (2) top outer wall is provided with filter screen cylinder (12), and filter screen cylinder (12) top outer wall installs handle (11), fan shell (2) circumference outer wall is pegged graft and is had air-out pipe (9) that the equidistance distributes.

2. The centrifugal fan with multiple air ducts according to claim 1, wherein the inner walls of the air outlet pipes (9) are adhered with sound-deadening sponges (8).

3. The centrifugal fan with multiple air ducts as claimed in claim 2, wherein the outer wall of the bottom of the fan casing (2) is provided with the fixed casing (6), and the inner wall of the bottom of the fixed casing (6) is provided with the motor (13).

4. A centrifugal fan with multiple air ducts as claimed in claim 3, wherein the output end of the motor (13) is provided with an output shaft, the output shaft extends into the fan housing (2), and the top outer wall of the output shaft is provided with an impeller (15).

5. A centrifugal fan with multiple air ducts according to claim 3, wherein the inner wall of the fixed casing (6) is provided with heat conducting fins (14), and the outer wall of the circumference of the heat conducting fins (14) is inserted with radiating fins (3) distributed at equal intervals.

6. The centrifugal fan with multiple air ducts according to claim 3, wherein the outer wall of the bottom of the fixed shell (6) is provided with a base (5), four corners of the outer wall of the bottom of the base (5) are provided with universal wheels (4), and the outer wall of one side of the base (5) is provided with a push rod (7).

7. The centrifugal fan with multiple air ducts as claimed in claim 1, wherein the outer wall of the top side of the fan housing (2) is rotatably connected with a rotating shaft (16), a connecting block (17) is mounted on the outer wall of the top of the rotating shaft (16), and a threaded rod is rotatably connected with the outer wall of the top side of the connecting block (17).