CN215566915U

CN215566915U - Noise reduction device for axial flow fan

Info

Publication number: CN215566915U
Application number: CN202121242754.XU
Authority: CN
Inventors: 陈石军
Original assignee: Foshan Jingyue Electromechanical Equipment Co ltd
Current assignee: Foshan Jingyue Electromechanical Equipment Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-01-18
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to the technical field of fan noise reduction, in particular to a noise reduction device for an axial flow fan, which comprises a device main body, wherein the device main body comprises a wooden box and a fan main body, a cover plate is inserted into the top end of the wooden box, a noise reduction mechanism is fixedly arranged in the wooden box, an air outlet pipe is fixedly arranged on one side of the wooden box, clamping mechanisms are fixedly arranged on two sides of the wooden box, the noise reduction mechanism comprises soundproof cotton, soundproof boards and clamping plates, and the soundproof boards are fixedly arranged in the wooden box. According to the utility model, the noise reduction mechanism is arranged, the damping plate is extruded, the damping plate extrudes the damping sheet to form a reaction force, a part of vibration is reduced, the vibration is introduced into the ground through the wooden box by the clamping plate, so that the noise is weakened from the source, the sound insulation plate and the sound insulation cotton intercept the noise from spreading in the air, the noise can be greatly reduced, and the noise pollution is avoided, so that the influence on the life of surrounding residents is avoided.

Description

Noise reduction device for axial flow fan

Technical Field

The utility model relates to the technical field of fan noise reduction, in particular to a noise reduction device for an axial flow fan.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The main structural components of the fan are an impeller, a shell, an air inlet, a bracket, a motor, a belt pulley, a coupling, a silencer, a transmission part (a bearing) and the like.

However, the existing axial flow fan can generate a large amount of noise pollution in the working process, the noise is generated in the process of friction between the blades and wind power due to the vibration and part friction of the fan body, and the noise is large and can influence the healthy life of people living around, so that the noise reduction device for the axial flow fan needs to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a noise reduction device for an axial flow fan, which aims to solve the problems that the existing axial flow fan in the background art can generate a large amount of noise pollution in the working process, the noise is generated in the processes of vibration of a fan body and friction of parts, rapid rotation of blades, friction of wind power and the like, and the noise is high, so that the healthy life of surrounding resident people is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a device of making an uproar falls for axial fan, includes the device main part, the device main part includes wooden case and fan main part, the apron has been inserted on the top of wooden case, the inside fixed mounting of wooden case has the mechanism of making an uproar to fall, one side fixed mounting of wooden case has the tuber pipe, the both sides fixed mounting of wooden case has fixture, it includes soundproof cotton, acoustic celotex board and splint to fall the mechanism of making an uproar, the inside fixed mounting of wooden case has the acoustic celotex board, the inside packing of wooden case has soundproof cotton, one side fixed mounting of wooden case has splint, the inside fixed mounting of splint has the shock attenuation piece, one side fixed mounting of shock attenuation piece has the shock attenuation board.

Preferably, the air outlet pipe is fixedly provided with a sound absorption pad inside, and the surface of the sound absorption pad is provided with a sound absorption hole.

Preferably, the wood box is internally provided with a dead slot, the inside of the dead slot is fixedly provided with a spring, the top end of the spring is fixedly provided with a clamping block, and the bottom end of the fan main body is provided with a clamping groove.

Preferably, one side of the wooden box is provided with a circular rail groove, a sliding block is slidably mounted inside the circular rail groove, and a protective cover is fixedly mounted on one side of the four sliding blocks.

Preferably, circular grooves are formed in one side of each circular rail groove, and the number of the circular grooves is four.

Preferably, fixture includes bolt, fixed plate and slide rail, one side fixed mounting of slide rail has the fixed plate, one side fixed mounting of slide rail has the bottom plate, the inside slidable mounting of slide rail has the slide, the bolt is installed to the top screw thread of fixed plate.

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

1. through being provided with the mechanism of making an uproar of falling, through the extrusion shock attenuation board, the shock attenuation board extrudees the shock attenuation piece and forms the power of reaction, subducts partly vibrations, and splint will shake and introduce ground through the wooden case to from the production of noise reduction in the source, acoustic celotex board and soundproof cotton have intercepted the noise and have propagated in the air, noise reduction that can be great avoids producing noise pollution, influences resident's life on every side.

2. Through being provided with protection casing, slider, circular rail groove and circular groove, the inside blade of fan main part is protected to the protection casing, prevents that the blade is impaired, and rotatory protection casing for the slider slides in the circular rail groove, is convenient for take out the slider from the circular groove, takes off whole protection casing from fan main part one side, is convenient for clear up the maintenance to the fan main part.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

FIG. 3 is a schematic structural view of a blower main body according to the present invention;

FIG. 4 is a side view of the damping plate and the clamping plate of the present invention.

In the figure: 100. a device main body; 110. a wooden box; 120. a cover plate; 130. a fan main body; 131. a card slot; 140. a protective cover; 141. a slider; 142. a circular rail groove; 143. a circular groove; 150. an air outlet pipe; 160. a sound absorbing pad; 170. an empty groove; 171. a clamping block; 172. a spring; 200. a noise reduction mechanism; 210. sound insulation cotton; 211. a sound insulating board; 212. a splint; 213. a damper plate; 214. a damping sheet; 300. a clamping mechanism; 310. a bolt; 311. a fixing plate; 312. a slide plate; 313. a base plate; 314. a slide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown:

a noise reduction device for an axial flow fan comprises a device main body 100, the device main body 100 comprises a wooden box 110 and a fan main body 130, a cover plate 120 is inserted into the top end of the wooden box 110, a noise reduction mechanism 200 is fixedly installed in the wooden box 110, an air outlet pipe 150 is fixedly installed on one side of the wooden box 110, clamping mechanisms 300 are fixedly installed on two sides of the wooden box 110, the noise reduction mechanism 200 comprises soundproof cotton 210, soundproof cotton 211 and clamping plates 212, the soundproof cotton 211 is fixedly installed in the wooden box 110, the soundproof cotton 210 is filled in the wooden box 110, the clamping plates 212 are fixedly installed on one side of the wooden box 110, damping sheets 214 are fixedly installed in the clamping plates 212, damping plates 213 are fixedly installed on one sides of the damping sheets 214, vibration is generated in the working process of a motor in the fan main body 130, the damping plates 213 are squeezed, the damping sheets 214 are squeezed by the damping plates 213 to form a reaction force, a part of vibration is reduced, the clamping plates 212 introduce the vibration into the ground through the wooden box 110, therefore, noise is weakened from the source, the sound insulation board 211 and the sound insulation cotton 210 intercept noise from propagating in the air, noise can be greatly reduced, noise pollution is avoided, and the influence on the life of surrounding residents is avoided.

Further, the inside of the air outlet pipe 150 is fixedly provided with a sound absorption pad 160, a sound absorption hole is formed in the surface of the sound absorption pad 160, and the sound absorption pad 160 absorbs noise generated by friction between the blades and wind and weakens gradually in the process of noise transmission.

Further, dead slot 170 has been seted up to wooden case 110's inside, and the inside fixed mounting of dead slot 170 has spring 172, and the top fixed mounting of spring 172 has fixture block 171, and draw-in groove 131 has been seted up to fan main part 130's bottom, is convenient for install fan main part 130 bottom location in wooden case 110's inside, and spring 172 elasticity is little, mainly avoids influencing fan main part 130 and blocks into the inside of splint 212.

Further, a circular rail groove 142 is formed in one side of the wooden box 110, the sliding blocks 141 are arranged in the circular rail groove 142 in a sliding mode, the protective cover 140 is fixedly arranged on one side of each of the four sliding blocks 141, and the protective cover 140 protects blades in the fan main body 130 and prevents the blades from being damaged.

Further, circular slot 143 has been seted up to one side of circular orbit groove 142, and the quantity of circular slot 143 is four, and rotatory protection casing 140 for slider 141 slides in circular orbit groove 142, and slider 141 rotates circular slot 143 department, is convenient for take out slider 141 from circular slot 143, takes off whole protection casing 140 from fan main part 130 one side, is convenient for clear up the maintenance to fan main part 130.

Further, the clamping mechanism 300 comprises a bolt 310, a fixing plate 311 and a sliding rail 314, the fixing plate 311 is fixedly mounted on one side of the sliding rail 314, a bottom plate 313 is fixedly mounted on one side of the sliding rail 314, a sliding plate 312 is slidably mounted inside the sliding rail 314, the bolt 310 is mounted on the top end of the fixing plate 311 in a threaded manner, the sliding plate 312 and the bottom plate 313 clamp the connecting plate, the bolt 310 is rotated, one end of the bolt 310 extrudes the sliding plate 312, the sliding plate 312 and the bottom plate 313 are clamped, the position of the wooden box 110 is convenient to fix, and the wooden box 110 is prevented from moving randomly.

The working principle is as follows: by pressing the shock absorbing plate 213, the shock absorbing plate 213 presses the shock absorbing plate 214 to generate a reaction force to absorb a part of the shock, the plywood 212 guides the shock to the ground through the wooden case 110, thereby reducing the generation of noise from the source, and the soundproof panel 211 and the soundproof cotton 210 intercept the propagation of the noise in the air.

The sliding block 141 slides in the circular track groove 142, and the sliding block 141 reaches the circular groove 143, so that the sliding block 141 can be conveniently taken out of the circular groove 143, the whole protective cover 140 is taken down from one side of the fan main body 130, and the fan main body 130 can be conveniently cleaned and maintained.

The sliding plate 312 and the bottom plate 313 clamp the connection plate, and the bolt 310 is rotated such that one end of the bolt 310 presses the sliding plate 312, so that the sliding plate 312 and the bottom plate 313 are clamped to fix the position of the wooden box 110.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a device of making an uproar falls for axial fan, includes device main part (100), its characterized in that: device main part (100) are including wooden case (110) and fan main part (130), apron (120) have been inserted on the top of wooden case (110), the inside fixed mounting of wooden case (110) has the mechanism of making an uproar (200) of falling, one side fixed mounting of wooden case (110) has air-out pipe (150), the both sides fixed mounting of wooden case (110) has fixture (300), it includes soundproof cotton (210), acoustic celotex board (211) and splint (212) to fall the mechanism (200) of making an uproar, the inside fixed mounting of wooden case (110) has acoustic celotex board (211), the inside packing of wooden case (110) has soundproof cotton (210), one side fixed mounting of wooden case (110) has splint (212), the inside fixed mounting of splint (212) has shock attenuation piece (214), one side fixed mounting of shock attenuation piece (214) has shock attenuation board (213).

2. The noise reduction device for an axial flow fan according to claim 1, wherein: the air outlet pipe (150) is fixedly provided with a sound absorption pad (160) inside, and a sound absorption hole is formed in the surface of the sound absorption pad (160).

3. The noise reduction device for an axial flow fan according to claim 1, wherein: an empty groove (170) is formed in the wood box (110), a spring (172) is fixedly mounted in the empty groove (170), a clamping block (171) is fixedly mounted at the top end of the spring (172), and a clamping groove (131) is formed in the bottom end of the fan main body (130).

4. The noise reduction device for an axial flow fan according to claim 1, wherein: a circular rail groove (142) is formed in one side of the wooden box (110), sliding blocks (141) are arranged in the circular rail groove (142) in a sliding mode, and a protective cover (140) is fixedly arranged on one side of each of the four sliding blocks (141).

5. The noise reduction device for an axial flow fan according to claim 4, wherein: circular grooves (143) are formed in one side of the circular rail groove (142), and the number of the circular grooves (143) is four.

6. The noise reduction device for an axial flow fan according to claim 1, wherein: fixture (300) includes bolt (310), fixed plate (311) and slide rail (314), one side fixed mounting of slide rail (314) has fixed plate (311), one side fixed mounting of slide rail (314) has bottom plate (313), the inside slidable mounting of slide rail (314) has slide (312), bolt (310) are installed to the top screw thread of fixed plate (311).