CN216922545U

CN216922545U - Centrifugal fan

Info

Publication number: CN216922545U
Application number: CN202220823845.0U
Authority: CN
Inventors: 何东其
Original assignee: Guangdong Shunde Honglong Electric Appliance Industry Co ltd
Current assignee: Guangdong Shunde Honglong Electric Appliance Industry Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-08
Anticipated expiration: 2032-04-11

Abstract

The utility model provides a centrifugal fan, which relates to the technical field of fans and comprises a shell, wherein a fixed plate is fixedly arranged on the back surface of the shell, a fixed frame is fixedly arranged on the surface of the fixed plate, a motor is fixedly arranged on the surface of the fixed frame, a rotating rod is arranged at the output end of the motor, and a wind wheel is fixedly arranged on the surface of the rotating rod. According to the utility model, the rotating rod is driven to rotate by the motor, the rotating rod then drives the wind wheel to rotate, and at the moment, air is blown out from the air outlet nozzle by the wind wheel, so that an air supply effect is realized.

Description

Centrifugal fan

Technical Field

The utility model relates to the technical field of fans, in particular to a centrifugal fan.

Background

Centrifugal fan relies on the mechanical energy of input, improves gaseous pressure and discharges gaseous machinery, and it is a driven fluid machinery, but present centrifugal fan's air outlet nozzle is square design usually, when connecting, often still need use fixing bolt to fix to if fixing bolt is ageing and take place smooth silk, lead to air outlet nozzle to connect insecure easily, influenced the air supply effect, need improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a centrifugal fan.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a centrifugal fan, includes the shell, the back fixed mounting of shell has the fixed plate, the mount is equipped with admittedly on the surface of fixed plate, the fixed surface of mount has the motor, the dwang is installed to the output of motor, the fixed surface of dwang installs the wind wheel, the top intercommunication of shell has the tuyere, the buckle groove has been seted up to the surface of tuyere, the tuyere is circular structure.

In order to facilitate clamping, the utility model is improved in that the clamping groove is a circular groove.

In order to filter dust, the utility model improves that a dustproof screen plate is fixedly arranged on the inner side of the shell.

In order to prolong the service life of the dustproof screen plate, the dustproof screen plate is improved by being made of PP (polypropylene) plastics or PE (polyethylene) plastics.

In order to improve the fixing effect, the utility model has the improvement that the buckling grooves are symmetrically distributed on the outer surface of the air outlet nozzle.

In order to conveniently detach the fixing frame, the utility model has the improvement that a fixing bolt is inserted at the position, close to the edge, of the surface of the fixing frame.

In order to stably install the fixing frame, the fixing frame is fixedly connected with the fixing plate through the fixing bolt.

Compared with the prior art, the utility model has the advantages and positive effects that,

according to the utility model, the rotating rod is driven to rotate by the motor, the rotating rod then drives the wind wheel to rotate, and at the moment, air is blown out from the air outlet nozzle by the wind wheel, so that an air supply effect is realized.

Drawings

FIG. 1 is a schematic view of a centrifugal fan according to the present invention;

FIG. 2 is a top view of a centrifugal fan according to the present invention;

FIG. 3 is a rear view of a centrifugal fan according to the present invention;

FIG. 4 is a side view in cross-section of a centrifugal fan according to the present invention;

fig. 5 is a sectional view of a centrifugal fan according to the present invention.

Illustration of the drawings:

1. a housing; 2. a fixing plate; 3. a fixed mount; 4. a motor; 5. rotating the rod; 6. a wind wheel; 7. an air outlet nozzle; 8. a fastening groove; 9. a dustproof screen plate; 10. and (5) fixing the bolt.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Example one

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a centrifugal fan, which comprises an outer shell 1, the inboard fixed mounting of shell 1 has dustproof otter board 9, can filter external dust through dustproof otter board 9, thereby guarantee the air supply effect, the material of dustproof otter board 9 is PP plastics or PE plastics, the dustproof otter board 9 of PP plastics or PE plastics material is comparatively durable, and light in weight simultaneously, the back fixed mounting of shell 1 has fixed plate 2, fixed plate 2's surface is equipped with mount 3 admittedly, mount 3's surface is close to border position department and inserts and is equipped with fixing bolt 10, mount 3 passes through fixing bolt 10 and fixed plate 2 fixed connection, the fixed surface of mount 3 installs motor 4, dwang 5 is installed to motor 4's output, the fixed surface of dwang 5 installs wind wheel 6.

Please refer to fig. 1-5, the top end of the housing 1 is communicated with the air outlet nozzle 7, the rotating rod 5 is driven to rotate by the motor 4, the rotating rod 5 drives the wind wheel 6 to rotate later, at this time, the air is blown out from the air outlet nozzle 7 by the wind wheel 6, thereby realizing the air supply effect, the outer surface of the air outlet nozzle 7 is provided with the buckle groove 8, the buckle groove 8 is distributed symmetrically on the outer surface of the air outlet nozzle 7, the buckle groove 8 is a circular groove, the buckle groove 8 can be conveniently connected, for example, a circular convex block is installed on the inner wall of the installation part, the buckle groove 8 can be clamped into the circular convex block, thereby making the connection of the air outlet nozzle 7 more firm, even if the bolt is loosened, the connection effect can be ensured, the air outlet nozzle 7 is of a circular structure, the air outlet nozzle 7 adopts a circular design, and the installation and operation can be more convenient.

The working principle is as follows: the motor 4 drives the rotating rod 5 to rotate, the rotating rod 5 then drives the wind wheel 6 to rotate, and at the moment, air is blown out from the air outlet nozzle 7 through the wind wheel 6, so that the air supply effect is achieved, meanwhile, the air outlet nozzle 7 in the air supply device is designed in a circular shape, the installation and operation can be facilitated, the buckle grooves 8 can be connected conveniently, for example, circular convex blocks are installed on the inner wall of the installation portion, the buckle grooves 8 can be clamped into the circular convex blocks, so that the air outlet nozzle 7 is connected more firmly, even if bolts are loosened, the connection effect can be guaranteed, and the practicability is high.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. A centrifugal fan, comprising a housing (1), characterized in that: the utility model discloses a wind wheel, including shell (1), fixed plate (2), fixed mount (3) are equipped with admittedly on the back fixed mounting of shell (1), the fixed surface of fixed plate (2) installs motor (4), dwang (5) are installed to the output of motor (4), the fixed surface of dwang (5) installs wind wheel (6), the top intercommunication of shell (1) has tuyere (7), buckle groove (8) have been seted up to the surface of tuyere (7), tuyere (7) are circular structure.

2. The centrifugal fan of claim 1, wherein: the clamping groove (8) is a circular groove.

3. The centrifugal fan of claim 1, wherein: and a dustproof screen plate (9) is fixedly arranged on the inner side of the shell (1).

4. The centrifugal fan of claim 3, wherein: the dustproof mesh plate (9) is made of PP (polypropylene) plastics or PE (polyethylene) plastics.

5. The centrifugal fan of claim 2, wherein: the clamping buckle grooves (8) are symmetrically distributed on the outer surface of the air outlet nozzle (7).

6. The centrifugal fan of claim 1, wherein: and a fixing bolt (10) is inserted at the position, close to the edge, of the surface of the fixing frame (3).

7. The centrifugal fan of claim 6, wherein: the fixing frame (3) is fixedly connected with the fixing plate (2) through a fixing bolt (10).