CN217176992U

CN217176992U - Low-noise fan

Info

Publication number: CN217176992U
Application number: CN202123308856.XU
Authority: CN
Inventors: 徐阳; 华如锋; 罗龙兵
Original assignee: Wuxi Jiuchao Environmental Protection Equipment Co Ltd
Current assignee: Wuxi Jiuchao Environmental Protection Equipment Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-08-12
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a low-noise fan in the technical field of fans, which comprises an axial flow fan body and a shell, wherein a driving motor is arranged in the shell, the power end of the driving motor is connected with fan blades, the bottom of the shell is provided with a bracket, dampers are arranged at the periphery of the bottom of the bracket, and the bottoms of the dampers are connected to a base; the guide assembly comprises a guide sleeve evenly arranged at the top of a base, the inner wall of the guide sleeve is connected with an anti-skidding sleeve I, a damper is arranged between a support and the base, vibration generated during the working of the axial flow fan body can be weakened, a vertical rod on the support slides in the anti-skidding sleeve I of the guide sleeve, the effect of guiding the support can be achieved, the stability of the damper during use is improved, the vertical rod slides in the anti-skidding sleeve I, the resistance of the vertical rod during moving can be improved, and the effect of assisting in damping is achieved.

Description

Low-noise fan

Technical Field

The utility model relates to a fan technical field specifically is a low noise fan.

Background

The wind direction of the axial flow blower is in phase with the rotating shaft, and the axial flow blower is convenient to install and disassemble in the pipeline. The air volume is large and the pressure is low. The lowest horsepower required when the air door is fully opened is exactly the opposite of the centrifugal type. The external form can be divided into a motor built-in type, a belt driven type, a bent tube type and the like. The method is suitable for ventilation of textile factories, ships, tunnels or cooling towers and the like.

Axial fan can appear shaking in the use, leads to the casing can produce the resonance with ground, consequently can produce certain noise, for this reason, we provide a low noise fan.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low noise fan to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a low-noise fan comprises an axial flow fan body and a fan body, wherein the axial flow fan body comprises a shell, a driving motor is arranged in the shell, a power end of the driving motor is connected with fan blades, a support is arranged at the bottom of the shell, dampers are arranged on the periphery of the bottom of the support, and the bottoms of the dampers are connected to a base; the guide assembly comprises a guide sleeve which is evenly arranged at the top of the base, the inner wall of the guide sleeve is connected with an anti-skidding sleeve I, the inner wall of the anti-skidding sleeve I is connected with a vertical rod in a sliding mode, the top end of the vertical rod is connected onto the support, and the bottom of the vertical rod is provided with a supporting spring connected with the guide sleeve.

As a preferred scheme of a low noise fan, wherein: and the middle end of the bottom of the shell is uniformly provided with a central damping component.

As a preferred scheme of a low noise fan, wherein: the central shock absorbing assembly is distributed along the axial direction of the shell.

As a preferred scheme of a low noise fan, wherein: the center shock-absorbing component comprises a center rod arranged at the middle end of the bottom of the shell, the bottoms of the front side and the rear side of the center rod are hinged to inclined rods, the bottom of each inclined rod is hinged to a movable block, mounting grooves are formed in the inner walls of the two sides of the base, the two sides of the base are provided with telescopic springs connected with the movable blocks, and the mounting grooves are provided with two anti-skidding sleeves which are sleeved on the movable blocks in a sliding mode.

As a preferred scheme of a low noise fan, wherein: the anti-skid sleeve II is of a square structure.

As a preferred scheme of a low noise fan, wherein: and a protective net is arranged at the end part of the shell.

As a preferred scheme of a low noise fan, wherein: the cross section of the vertical rod is of a cross structure.

Compared with the prior art, the beneficial effects of the utility model are that: through set up the attenuator between support and base, can weaken the vibrations that axial fan body during operation produced, montant through the support slides in the antiskid cover of uide bushing is one, can play the effect to the support direction, stability when improving the attenuator use, and the montant slides in antiskid cover is one, resistance when can improving the montant and remove, play supplementary absorbing effect, bottom middle-end through at the shell sets up well core rod, make the shell when vibrations, well core rod can drive the movable block on the down tube and slide in antiskid cover two, can further play absorbing effect, thereby weaken the vibrations through the during operation of axial fan body by a wide margin, can the noise reduction betterly.

Drawings

Fig. 1 is a schematic view of the overall structure of a low noise blower of the present invention;

fig. 2 is a schematic structural view of a guide assembly of a low noise blower of the present invention;

fig. 3 is a schematic structural view of a position a of the low noise fan of the present invention;

fig. 4 is a schematic view of a local structure of the low noise blower of the present invention.

In the figure: 100. an axial flow fan body; 101. a housing; 102. a fan blade; 103. a protective net; 104. a support; 200. a damper; 300. a base; 400. a guide assembly; 401. a guide sleeve; 402. a first anti-slip sleeve; 403. a vertical rod; 404. a support spring; 500. a center pole; 600. a diagonal bar; 700. a movable block; 800. a tension spring; 900. and a second anti-slip sleeve.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 2, a low noise fan includes an axial flow fan body 100 including a hollow housing 101, the exterior of the housing 101 is coated with an anticorrosive paint to achieve an anticorrosive effect, a driving motor for driving the fan blades 102 to rotate is installed inside the housing 101, and the power end of the driving motor is connected with the fan blades 102, the driving motor is connected with the power end thereof through a speed reducer, in order to support the housing 101, a bracket 104 is disposed at the bottom of the housing 101, in order to prevent the bracket 104 from following the housing 101, the bottom of the bracket 104 is provided with dampers 200 for reducing vibration amplitude at the periphery, so that noise caused by vibration can be reduced, the bottoms of the dampers 200 are connected to a base 300, and the base 300 is fixed on the ground;

in order to improve the stability of the damper 200 in use, a guide assembly 400 is provided, which comprises a guide sleeve 401 uniformly arranged on the top of the base 300, an anti-slip sleeve 402 made of rubber material is connected to the inner wall of the guide sleeve 401, the vertical rod 403 is connected with the inner wall of the anti-slip sleeve 402 in a sliding way, the top end of the vertical rod 403 is connected with the bracket 104, thus, when the bracket 104 moves due to vibration, the vertical rod 403 can slide in the anti-slip sleeve I402, which can play a role in guiding the bracket 104, thereby improving the stability of the damper 200 when in use, and the vertical rod 403 slides in the anti-skid sleeve I402, the anti-skid sleeve I402 can play a role of blocking the vertical rod 403, thereby improving the resistance of the vertical rod 403 during moving, and having the effect of auxiliary shock absorption by matching with the damper 200, in order to support the vertical rod 403, a support spring 404 connected to the guide sleeve 401 is provided at the bottom of the vertical rod 403.

In order to prevent impurities from entering the casing 101 and affecting the rotation of the fan 102, a protective net 103 is provided at an end of the casing 101.

The cross section of the vertical rod 403 is a cross structure, and may be a convex shape, so as to better guide and block the vertical rod 403.

Example 2

Referring to fig. 1, 3 and 4, in order to improve a damping effect when the axial flow fan body 100 is used, a central damping member is uniformly provided at a middle end of a bottom of the casing 101.

To facilitate the arrangement of the central damping assemblies, groups of central damping assemblies are distributed along the axial direction of the casing 101.

Center damper, it is including setting up well core rod 500 in shell 101 bottom middle-end, well core rod 500 follows shell 101 and removes, the bottom of well core rod 500 front and back both sides all articulates there is down tube 600, the bottom of two sets of down tube 600 all articulates there is movable block 700, the mounting groove has all been seted up to base 300's both sides inner wall, for convenient connection movable block 700, all set up the expanding spring 800 of being connected with movable block 700 in two sets of mounting grooves, for can hindering the removal of movable block 700, all set up two 900 of the antiskid cover of slip cap on movable block 700 in two sets of mounting grooves, and two 900 of the antiskid covers also adopt rubber materials to make, two 900 of the antiskid cover adopt square structure.

When the vibrations of support 104 are weakened by attenuator 200 and montant 403, the shell 101 can slide in two 900 anti-skidding sleeves through well pole 500 drive the movable block 700 on the down tube 600, hinders the movable block 700 that removes through two 900 anti-skidding sleeves, can further play absorbing effect to noise reduction betterly.

The rest of the structure was the same as in example 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low noise fan which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the axial flow fan body (100) comprises a shell (101), a driving motor is installed inside the shell (101), a power end of the driving motor is connected with fan blades (102), a support (104) is arranged at the bottom of the shell (101), dampers (200) are arranged on the periphery of the bottom of the support (104), and the bottoms of the dampers (200) are connected to a base (300);

guide assembly (400), including even uide bushing (401) that sets up at base (300) top, the inner wall of uide bushing (401) is connected with antiskid cover one (402), the inner wall sliding connection of antiskid cover one (402) has montant (403), and the top of montant (403) is connected on support (104), the bottom of montant (403) is provided with supporting spring (404) of being connected with uide bushing (401).

2. A low noise blower according to claim 1, wherein: the middle end of the bottom of the shell (101) is uniformly provided with a central damping component.

3. A low noise blower according to claim 2, wherein: the central shock absorbing components are distributed along the axial direction of the shell (101).

4. A low noise blower according to claim 3, wherein: center damper is including setting up well core rod (500) in shell (101) bottom middle-end, the bottom of both sides all articulates there is down tube (600), and is two sets of around well core rod (500) the bottom of down tube (600) all articulates there is movable block (700), the mounting groove has all been seted up to the both sides inner wall of base (300), and is two sets of all be provided with expanding spring (800) of being connected with movable block (700) in the mounting groove, it is two sets of all be provided with the antiskid cover two (900) of slip cap on movable block (700) in the mounting groove.

5. A low noise blower according to claim 4, wherein: the second anti-skid sleeve (900) is of a square structure.

6. A low noise blower according to claim 1, wherein: the end part of the shell (101) is provided with a protective net (103).

7. A low noise blower according to claim 1, wherein: the cross section of the vertical rod (403) is of a cross-shaped structure.