Silencing type pipeline fan

Abstract

The utility model relates to the technical field of noise reduction of pipeline fans, in particular to a noise reduction type pipeline fan which comprises a fan body, a noise reduction barrel for eliminating noise and a dustproof mechanism for preventing dust from affecting noise reduction. The dustproof mechanism comprises a mounting frame, a limiting rod, an electrostatic rod, a protection plate and a pull rod; the mounting frame is slidably mounted on the limiting rod, and the limiting rod is fixedly connected to the protection plate; electrostatic rods are uniformly mounted on the mounting frame, and a pull rod is fixedly connected to the mounting frame and slides and penetrates through the protection plate. According to the air purifier, dust is adsorbed through the electrostatic rod with static electricity, the dust adsorption surface is enlarged, the effect of removing the dust sucked into the air is improved, the influence of the dust on the use of a silencer in the silencing barrel is avoided, the electrostatic rod can penetrate through the through hole by pulling the pull rod, the dust on the electrostatic rod can be conveniently cleaned, and the practicability of the air purifier is improved. And the dust removal effect of the electrostatic rod is guaranteed, and then the stability of the silencing effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline fan silencing technical field, concretely relates to a silencing pipeline fan. BACKGROUND

[0002] The circular pipeline fan is a novel straight-through fan combined with advanced stretch forming technology and aerodynamics, can be directly connected with a circular spiral air duct or a PVC pipe, and can greatly save pipeline installation cost. Since airflow directly collides with the blades of the fan during operation of the fan, strong noise is generated, especially at the air inlet and air outlet of the fan. The existing fan does not have a specific silencing structure, and a simple shell is generally provided on the outer cover of the whole machine. This silencing method has low efficiency and poor silencing effect, and the wind shear sound at the air outlet cannot be removed, thereby causing inconvenience to the user.

[0003] Prior art, such as the utility model disclosed in patent announcement No. CN219691833U, a silencing shell of a circular pipeline fan, comprising a fan shell and a fan body, the fan body is installed inside the fan shell, the inner wall of the fan shell is integrally formed with a fixing seat, the surface of the fixing seat and the fan shell is provided with a through hole, the inside of the through hole is inserted with a connecting rod. The utility model sets the fixing seat and the connecting rod in the inside of the fan shell to fix the fan body, and sets a silencing assembly between the fan body and the connecting rod. The shock-absorbing rubber seat in the silencing assembly can transmit the vibration generated by the fan body during operation to the outside through the first cavity, the second cavity and the exhaust channel, and can also transmit part of the vibration to the movable ring and the spring through the shock-absorbing rubber seat, thereby silencing the fan body, preventing the large noise from interfering with the normal work of the user, and improving the overall practicability.

[0004] The device can complete shock absorption of the fan body through the silencing assembly, thereby achieving the purpose of silencing. Moreover, the pipeline fan is more likely to be silenced by installing a silencer. However, the dust sucked by the pipeline fan can adhere to the fan blades, affecting the air intake of the pipeline fan, and the dust can also affect the normal use of the silencer.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a silencing pipeline fan which can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of the utility model, the following technical solutions are adopted: a silencing pipeline fan, comprising: a fan body, a silencing cylinder for eliminating noise, and a dust prevention mechanism for preventing dust from affecting silencing.

[0008] The dustproof mechanism comprises a mounting frame, a limiting rod, electrostatic rods, a protective plate and a pull rod, the mounting frame is slidingly installed on the limiting rod, the limiting rod is fixedly connected to the protective plate, the electrostatic rods are evenly installed on the mounting frame, the pull rod is fixedly connected to the mounting frame and slidingly penetrates through the protective plate.

[0009] Further, the protective plate is uniformly provided with through holes which are aligned with the electrostatic rods.

[0010] Further, the through holes have an inner diameter larger than the diameter of the electrostatic rods.

[0011] Further, the mounting frame and the limiting rod are made of metal material, and the pull rod is made of insulating material.

[0012] Compared with the prior art, the utility model has the advantages that the utility model relates to a sound attenuation type pipeline fan, the electrostatic rods with electrostatic dust adsorption increase the dust adsorption area, improve the effect of removing dust in the inhaled air, avoid the influence of dust on the use of the sound attenuation device in the sound attenuation cylinder, the electrostatic rods can pass through the through holes by pulling the pull rod, dust on the electrostatic rods is cleaned, the effect of removing dust by the electrostatic rods is ensured, and the stability of the sound attenuation effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model and do not constitute a limitation on the utility model.

[0014] Fig. 1 It is a structural schematic view of the utility model sound attenuation type pipeline fan.

[0015] Fig. 2 It is a structural schematic view of one side of the dustproof mechanism in the utility model.

[0016] Fig. 3 It is a structural schematic view of the other side of the dustproof mechanism in the utility model.

[0017] Fig. 4 It is a structural schematic view of the fan main body in the utility model.

[0018] In the drawing: 1, fan main body; 11, power connection port; 2, sound attenuation cylinder; 3, dustproof mechanism; 31, limiting rod; 32, mounting frame; 33, protective plate; 34, through hole; 35, electrostatic rod; 36, pull rod; 37, handle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0020] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model. When a mechanism is referred to as "fixed to" another mechanism, it can be directly on another mechanism or there can be a central mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to another mechanism or there can be a central mechanism. When a mechanism is considered to be "provided on" another mechanism, it can be directly provided on another mechanism or there can be a central mechanism. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0021] As Figs. 1 to 4 shown, the utility model relates to a sound attenuation type pipeline fan, include: fan main body 1, eliminate noise's sound attenuation cylinder 2, prevent dust influence sound attenuation's dustproof mechanism 3, fan main body 1 is equipped with electricity connection 11, sound attenuation cylinder 2 is installed in the air inlet end of fan main body 1, and sound attenuation cylinder 2 is installed with silencer, and the silencer is located in the one end of sound attenuation cylinder 2 close to fan main body 1, and dustproof mechanism 3 is located in the other end of sound attenuation cylinder 2.

[0022] The dustproof mechanism 3 comprises a mounting rack 32, limiting rods 31, electrostatic rods 35, a protective plate 33 and a pull rod 36; the mounting rack 32 is net-shaped, four feet of the mounting rack 32 are slidingly installed on the four limiting rods 31 respectively, one end of the limiting rod 31 is fixedly connected to the protective plate 33, the protective plate 33 is fixedly installed on one end of the muffler 2, foreign matters are blocked from entering the muffler 2 through the protective plate 33, the four limiting rods 31 are circumferentially distributed, the other end of the limiting rod 31 is fixedly connected to the inner wall of the muffler 2, and the length of the limiting rod 31 is less than one half of the length of the muffler 2; the electrostatic rods 35 are uniformly installed on the mounting rack 32, the length of the electrostatic rod 35 is less than one half of the length of the limiting rod 31, the pull rod 36 is fixedly connected to the mounting rack 32, the pull rod 36 is located on the central axis of the muffler 2, the length of the pull rod 36 is greater than the length of the limiting rod 31, the pull rod 36 slides and penetrates through the protective plate 33, and the handle 37 is fixedly installed on one end of the pull rod 36, so as to facilitate pulling of the pull rod 36.

[0023] Further, the mounting rack 32 and the limiting rod 31 are made of metal material, the pull rod 36 is made of insulating material, and the two ends of the limiting rod 31 are wrapped with an insulating layer; a metal sheet is installed in the muffler 2, the metal sheet is connected with the limiting rod 31, the metal sheet is electrically connected with the electrostatic machine, when the mounting rack 32 moves on the limiting rod 31, the electrostatic is transmitted to the mounting rack 32 and the electrostatic rod 35 through the limiting rod 31, and the insulating layer and the pull rod 36 avoid the electrostatic from being transmitted to the muffler 2, the protective plate 33 and the handle 37, so as to avoid the user from being hurt when contacting the device.

[0024] It is necessary to supplement that a rubber sleeve with small thickness is installed on the pull rod 36, the rubber sleeve is deformed by moving to the position of the protective plate 33, the moving resistance of the pull rod 36 relative to the protective sleeve is increased, the mounting rack 32 is prevented from freely sliding on the limiting rod 31, and the dust removal effect of the electrostatic rod 35 is affected.

[0025] Further, the protective plate 33 is uniformly provided with through holes 34, the through holes 34 are aligned with the electrostatic rods 35, and the inner diameter of the through hole 34 is greater than the diameter of the electrostatic rod 35; when the dust adsorbed on the electrostatic rod 35 is more, the pull rod 36 is pulled by the handle 37, the mounting rack 32 is moved on the limiting rod 31 by the pull rod 36, the mounting rack 32 drives the electrostatic rod 35 to move, when the mounting rack 32 moves to one end of the limiting rod 31 close to the protective plate 33, the electrostatic rod 35 penetrates through the through hole 34, and the dust is no longer adsorbed by the electrostatic rod 35, so as to facilitate cleaning of the dust on the electrostatic rod 35.

[0026] Working principle:

[0027] When the pipeline fan is used, air enters the muffler 2 through the through hole 34 on the protection plate 33, and larger foreign matters are blocked by the protection plate 33; dust in the air is adsorbed by the electrostatic bars 35 when passing through the electrostatic bars 35, the adsorption surface is increased by arranging multiple electrostatic bars 35, thereby improving the dust removal effect and the duration of dust removal, avoiding dust from entering the muffler and affecting the muffling effect; when the electrostatic bars 35 have more dust, the first page is pulled to pull the pull rod 36, the pull rod 36 drives the mounting frame 32 to move, the mounting frame 32 drives the electrostatic bars to move, when the mounting frame 32 moves to one end of the limiting rod 31, the electrostatic bars 35 pass through the through hole 34 and extend out of the muffler 2, because the mounting frame 32 is in contact with the insulating layer, the electrostatic on the electrostatic bars 35 disappears, the dust on the electrostatic bars 35 is convenient to clean, and the dust on the electrostatic bars 35 is avoided from falling into the muffler 2, the cleaning difficulty is increased, and the practicability of the device is improved.

[0028] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0029] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A silencer-type duct fan, characterized in that, include: The main body of the fan includes a silencer to eliminate noise and a dustproof mechanism to prevent dust from affecting the noise reduction. The dustproof mechanism includes: a mounting frame, a limiting rod, an anti-static rod, a protective plate, and a pull rod; the mounting frame is slidably mounted on the limiting rod, and the limiting rod is fixedly connected to the protective plate; the anti-static rods are evenly mounted on the mounting frame, and the pull rod is fixedly connected to the mounting frame, and the pull rod slides through the protective plate.

2. The silencer-type duct fan as described in claim 1, characterized in that, The protective plate is provided with through holes evenly distributed, and the through holes are aligned with the electrostatic rod.

3. A silencer-type duct fan as described in claim 2, characterized in that, The inner diameter of the through hole is larger than the diameter of the electrostatic rod.

4. A silencer-type duct fan as described in claim 1, characterized in that, The mounting bracket and the limiting rod are made of metal, while the pull rod is made of insulating material.

Images