CN213899327U - Low-noise centrifugal fan - Google Patents
Low-noise centrifugal fan Download PDFInfo
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- CN213899327U CN213899327U CN202022334099.2U CN202022334099U CN213899327U CN 213899327 U CN213899327 U CN 213899327U CN 202022334099 U CN202022334099 U CN 202022334099U CN 213899327 U CN213899327 U CN 213899327U
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Abstract
The utility model relates to the technical field of ventilation equipment, in particular to a low-noise centrifugal fan; comprises a shell, a frame is fixedly arranged at the air inlet of the shell, a filter screen is fixedly arranged on the frame, a brushing motor is fixedly arranged on the inner wall of the frame, a brushing rod is fixedly arranged at the outer end of an output shaft of the brushing motor, brushing wires are fixedly arranged on the inner surface of the brushing rod, a connecting block is fixedly arranged at the bottom of the shell, two ends of the connecting block are respectively and fixedly connected with a rotating shaft, the rotating shafts are jointly and rotatably connected with a support, wherein one rotating shaft is fixedly sleeved with a positioning ring, the edge of the positioning ring is provided with a plurality of through positioning holes, the positioning holes are distributed in an annular and equidistant way, the support is provided with the limiting holes matched with the positioning holes, and the locking pieces are inserted into the positioning holes and the limiting holes together, the filter screen is cleaned in an electric mode without manual cleaning, meanwhile, the angle of the air outlet of the fan can be adjusted according to the installation environment and requirements, and diversified use requirements are met.
Description
Technical Field
The utility model relates to a ventilation equipment technical field, concretely relates to low noise centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial kilns.
In order to ventilate buildings and ships, a centrifugal fan is generally used for exhausting and conveying gas, a filter screen is generally additionally arranged inside an air inlet of the centrifugal fan in order to prevent dust in the air from entering a ventilating duct through the air inlet of the centrifugal fan, the filter screen is inconvenient to replace when the filter screen is damaged due to the fact that the filter screen is arranged inside the centrifugal fan, and in the process of propping up and using, the dust accumulated on the surface of the filter screen can block the filter screen, so that the ventilation efficiency of the centrifugal fan is influenced, and therefore operators need to regularly manually clean the dust on the filter screen, and time and labor are wasted; meanwhile, the angle of the air outlet of the centrifugal fan cannot be adjusted, so that the centrifugal fan cannot be suitable for different installation environments, and the applicability is low.
SUMMERY OF THE UTILITY MODEL
Solves the technical problem
Aiming at the defects in the prior art, the utility model provides a low-noise centrifugal fan, which can effectively solve the problems that the cleaning of the centrifugal fan filter screen in the prior art is time-consuming and labor-consuming, and the practicability is reduced; meanwhile, the angle of the air outlet can not be adjusted, the air outlet can not be suitable for different installation environments, and the applicability is low.
Technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a low-noise centrifugal fan comprises a shell, wherein a frame is fixedly arranged at an air inlet of the shell, a filter screen is fixedly arranged on the frame, a brushing motor is fixedly arranged on the inner wall of the center of the frame, the gap of an output shaft of the brushing motor penetrates through a round hole formed in the frame, a brushing rod is fixedly arranged at the outer end of the output shaft of the brushing motor, the other end of the brushing rod extends to the edge of the frame, brushing wires are fixedly arranged on the inner surface of the brushing rod, a connecting block is fixedly arranged at the bottom of the shell, two ends of the connecting block are respectively and fixedly connected with a rotating shaft, the rotating shaft is jointly and rotatably connected with a support, a positioning ring is fixedly sleeved on one rotating shaft, a plurality of penetrating positioning holes are formed in the edge of the positioning ring and are distributed in an annular equal distance, and limiting holes matched, and locking pieces are inserted into the positioning holes and the limiting holes together.
Furthermore, the locking piece comprises at least two screw rods and nuts, the screw rods are spaced by two positioning holes, and the outer ends of the screw rods are connected with the connecting plate together.
Furthermore, the bottom plate of the support is provided with a mounting hole, and the support is made of steel.
Furthermore, the frame is made of stainless steel.
Further, the cleaning filaments protrude toward the filter screen side.
Furthermore, the positioning ring is made of steel.
Advantageous effects
Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:
1. the utility model discloses an at the inner wall installation of frame brush motor, the rotation that utilizes the brush motor drives the brush pole looper and cleans the brush to the filter screen for sedimentary dust can be cleaned by the brush on the filter screen, does not need the manual cleaning, and simple structure is practical, and is with low costs.
2. The utility model discloses a pivot is connected shell and support rotation, is fixed with the holding ring that has the locating hole in the pivot simultaneously and realizes the fixed with the support for the air outlet of fan can be adjusted according to installation environment and demand, has satisfied diversified user demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged schematic view of A of FIG. 1 according to the present invention;
fig. 3 is a schematic rear view of the present invention;
the reference numerals in the drawings denote: 1-a housing; 2-a frame; 3, filtering the filter screen; 4-cleaning the motor; 5-cleaning the brush rod; 6-brushing the filaments; 7-connecting blocks; 8-a rotating shaft; 9-support; 10-a positioning ring; 11-a positioning hole; 12-a limiting hole; 13-locking member; 14-mounting holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. 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.
The present invention will be further described with reference to the following examples.
Examples
The low-noise centrifugal fan of the embodiment is as follows, with reference to fig. 1-3: comprises a shell 1, a frame 2 is fixedly arranged at an air inlet of the shell 1, a filter screen 3 is fixedly arranged on the frame 2, a cleaning motor 4 is fixedly arranged on the inner wall of the center of the frame 2, and the clearance of the output shaft of the cleaning motor 4 penetrates through the round hole arranged on the frame 2, the outer end of the output shaft of the cleaning motor 4 is fixedly provided with a cleaning rod 5, the other end of the cleaning rod 5 extends to the edge of the frame 2, the inner surface of the cleaning rod 5 is fixedly provided with cleaning wires 6, the bottom of the shell 1 is fixedly provided with a connecting block 7, two ends of the connecting block 7 are respectively and fixedly connected with a rotating shaft 8, the rotating shafts 8 are jointly and rotatably connected with a support 9, one of the rotating shafts 8 is fixedly sleeved with a positioning ring 10, the edge of the positioning ring 10 is provided with a plurality of through positioning holes 11, the positioning holes 11 are distributed in an annular and equidistant mode, the support 9 is provided with a limiting hole 12 matched with the positioning holes 11, and locking pieces 13 are inserted into the positioning holes 11 and the limiting hole 12 together.
The locking piece 13 comprises at least two screws and nuts, the screws are spaced from the two positioning holes 11, the outer ends of the screws are connected with a connecting plate together, and the connecting plate is used for connecting the screws; a mounting hole 14 is formed in a bottom plate of the support 9, the support 9 is made of steel, and the mounting hole 14 can facilitate mounting of the support 9; the frame 2 is made of stainless steel, the cleaning wires 6 protrude towards the filter screen 3 side, and the positioning ring 10 is made of steel.
During the use, at the inner wall installation brush motor 4 of frame 2, when needing to wash, start brush motor 4 and drive brush rod 5 rotation to wash filter screen 3 through clear brush silk 6, do not need manual cleaning, simple structure is practical, and is with low costs.
Connecting block 7 is installed to 1 bottom of shell, is provided with pivot 8 on connecting block 7, during the angle in regulation wind gap, round pivot 8 regulation wind gap, treat the position confirmation back, the fine motion makes locating hole 11 of holding ring 10 align the spacing hole 12 of support 9, then inserts locating hole 11 and spacing downthehole 12 with two screw rods of latch fitting 13 in, screws up the nut on the screw rod and realizes the fixed of angle, the utility model discloses make the air outlet of fan can adjust according to installation environment and demand, satisfied diversified user demand
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 (6)
1. The utility model provides a low noise centrifugal fan, includes the shell, its characterized in that: the shell is fixedly provided with a frame at the air inlet, the frame is fixedly provided with a filter screen, the inner wall of the center of the frame is fixedly provided with a cleaning motor, and the clearance of the output shaft of the brushing motor penetrates through a round hole arranged on the frame, the outer end of the output shaft of the brushing motor is fixedly provided with a brushing rod, the other end of the cleaning rod extends to the edge of the frame, cleaning wires are fixedly arranged on the inner surface of the cleaning rod, the bottom of the shell is fixedly provided with a connecting block, two ends of the connecting block are respectively and fixedly connected with a rotating shaft, the rotating shafts are jointly and rotatably connected with a support, wherein a positioning ring is fixedly sleeved on one rotating shaft, a plurality of through positioning holes are arranged at the edge of the positioning ring, and the locating holes are distributed in an annular and equidistant manner, the support is provided with limiting holes matched with the locating holes, and the locating holes and the limiting holes are jointly inserted with locking pieces.
2. The low noise centrifugal fan of claim 1, wherein the locking member comprises at least two screws and nuts, the screws are spaced from the two positioning holes, and the outer ends of the screws are commonly connected to the connecting plate.
3. The low-noise centrifugal fan as claimed in claim 1, wherein the bottom plate of the support is provided with a mounting hole, and the support is made of steel.
4. The low noise centrifugal fan of claim 1 wherein said frame is stainless steel.
5. The low noise centrifugal fan according to claim 1, wherein said cleaning filaments protrude toward the filter screen side.
6. The centrifugal fan according to claim 1, wherein the positioning ring is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022334099.2U CN213899327U (en) | 2020-10-20 | 2020-10-20 | Low-noise centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022334099.2U CN213899327U (en) | 2020-10-20 | 2020-10-20 | Low-noise centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213899327U true CN213899327U (en) | 2021-08-06 |
Family
ID=77113501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022334099.2U Active CN213899327U (en) | 2020-10-20 | 2020-10-20 | Low-noise centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213899327U (en) |
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2020
- 2020-10-20 CN CN202022334099.2U patent/CN213899327U/en active Active
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