CN215929956U

CN215929956U - Filter screen grid for fresh air equipment

Info

Publication number: CN215929956U
Application number: CN202121792616.9U
Authority: CN
Inventors: 葛陆根
Original assignee: Anhui Pinguan Air Technology Co ltd
Current assignee: Anhui Pinguan Air Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-03-01
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a filter screen grid for fresh air equipment, and relates to the technical field of fresh air equipment. The utility model comprises a connecting pipe connected with an external air inlet pipe of a fresh air machine; the lower end of the connecting pipe is rotatably provided with a filter screen grid for filtering sand and stone impurities; the connecting pipe comprises a cylinder with an opening at the lower end; a branch air pipe which is in inserting fit with an external air inlet pipe of the fresh air machine is fixedly penetrated on the peripheral side surface of the upper end part of the cylinder; a plurality of clamping plates matched with the outer wall of the air inlet pipe are uniformly and annularly distributed and fixed on the surface of the bronchus; the filter screen grid comprises an annular circular plate; the lower surface of the annular circular plate is fixedly provided with a hemispherical mesh enclosure which is coaxially arranged; the upper end face of the annular circular plate is fixedly provided with an external thread pipe in threaded connection with the lower end of the cylinder. The novel fan air inlet pipe is combined with the filter screen grid through the connecting pipe and is arranged at the front end of the air inlet pipe of the novel fan, and the entering sundries are separated in layers through grid filtration of the hemispherical screen, the first spoiler, the arched screen and the second spoiler, so that the quantity of the entering particles is greatly reduced.

Description

Filter screen grid for fresh air equipment

Technical Field

The utility model belongs to the technical field of fresh air equipment, and particularly relates to a filter screen grid for fresh air equipment.

Background

Fresh air equipment can be to indoor introduction and fresh air purification, overcome the problem of indoor oxygen deficiency, and can in time discharge indoor harmful gas outdoor, use fresh air equipment to change indoor air and have become a trend gradually. The fresh air equipment is provided with an air inlet communicated with the outside of the room, outdoor fresh air is introduced into the room through the air inlet, an air inlet pipe outside the existing fresh air equipment is generally not provided with a filter screen grid, actual purification is carried out by a host, and the service life of a filter element of the host is shortened seriously. The present document thus provides a filter screen grid for fresh air devices for solving the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filter screen grid for fresh air equipment, which is arranged at the front end of an air inlet pipe of a fresh air fan through a connecting pipe and the filter screen grid in a combined manner, and the entering sundries are isolated through the grid filtering layers of a hemispherical mesh enclosure, a first spoiler, an arched mesh enclosure and a second spoiler, so that the quantity of entering particles is greatly reduced, and the existing problems are solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a filter screen grid for fresh air equipment, which comprises a connecting pipe connected with an external air inlet pipe of a fresh air machine; the lower end of the connecting pipe is rotatably provided with a filter screen grid for filtering sand and stone impurities; the connecting pipe comprises a cylinder with an opening at the lower end; a branch air pipe which is in inserting fit with an external air inlet pipe of the fresh air machine is fixedly penetrated on the peripheral side surface of the upper end part of the cylinder; a plurality of clamping plates matched with the outer wall of the air inlet pipe are uniformly and fixedly distributed on the surface of the bronchus in an annular manner; the filter screen grid comprises an annular circular plate; the lower surface of the annular circular plate is fixedly provided with a hemispherical mesh enclosure which is coaxially arranged; the upper end face of the annular circular plate is fixedly provided with an external thread pipe in threaded connection with the lower end of the cylinder; and the upper end surface of the annular circular plate is positioned at the inner side of the external threaded pipe and is fixedly provided with an arched mesh enclosure which is arched upwards.

Furthermore, a round through hole is formed in the center of the lower end of the hemispherical mesh enclosure; the bottom is located the circular through-hole week side and has supported the circular cone through four stands in the hemisphere screen panel.

Furthermore, first spoilers are uniformly distributed and fixed on the inner wall of the annular circular plate in an annular manner; the first spoiler is obliquely arranged, and the upper surface of the first spoiler is a plane with an arc surface and a lower surface.

Furthermore, a second spoiler which is obliquely upward and points to the middle part is fixed on the inner wall of the cylinder and positioned on the lower side of the bronchus.

Furthermore, the clamping plate is an L-shaped arc plate with one end fixed on the surface of the bronchus; the contact surface of the clamping plate and the external air inlet pipe of the fresh air machine is provided with anti-skid barbs; and a limiting bulge is arranged on the outer side of the free end of the clamping plate.

The utility model has the following beneficial effects:

1. the air inlet pipe is combined with the filter screen grid through the connecting pipe and is arranged at the front end of the air inlet pipe of the fresh air fan, the air is filtered through grids of the hemispherical screen, the first spoiler, the arched screen and the second spoiler, the air is used for isolating entering sundries in multiple levels, the air filters larger floating sundries in the air through the hemispherical screen, the first spoiler plays a role in rebounding and removing entering sand, the arched screen uniformly obstructs the sand again through air flow, and the second spoiler obstructs the sand through air flow again in the whole ascending pipeline, so that the quantity of entering particles is greatly reduced integrally.

2. The circular through hole and the fixed cone formed at the lower end of the hemispherical mesh enclosure are convenient for discharging blocked sand.

3. The connecting pipe and the filter screen grid combined integral structure is reasonable and simple, convenient to install and use and low in maintenance cost.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a filter grid for a fresh air device according to the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is an enlarged view of a portion of FIG. 3 at B;

FIG. 6 is a schematic structural view of a connecting tube;

FIG. 7 is a schematic view of a filter grid;

in the drawings, the components represented by the respective reference numerals are listed below:

1-connecting pipe, 2-filtering screen grid, 11-cylinder, 12-bronchus, 13-clamping plate, 14-second spoiler, 21-annular circular plate, 22-hemispherical screen, 23-external thread pipe, 24-arched screen, 25-first spoiler, 221-circular through hole, 222-column, 223-cone.

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. 1-7, the present invention is a filter grid for a fresh air device, including a connecting pipe 1 connected to an external air inlet pipe of the fresh air device; the lower end of the connecting pipe 1 is rotatably provided with a filter screen 2 for filtering sand and stone impurities; the connecting pipe 1 comprises a cylinder 11 with an opening at the lower end; a bronchus 12 which is in splicing fit with an external air inlet pipe of the fresh air machine is fixedly penetrated on the peripheral side surface of the upper end part of the cylinder 11; a plurality of clamping plates 13 matched with the outer wall of the air inlet pipe are uniformly and annularly distributed and fixed on the surface of the bronchus 12; the filter screen grid 2 comprises an annular circular plate 21; a hemisphere mesh enclosure 22 coaxially arranged is fixed on the lower surface of the annular circular plate 21; an external thread pipe 23 which is in threaded connection with the lower end of the cylinder 11 is fixed on the upper end surface of the annular circular plate 21; an arched mesh enclosure 24 which is arched upwards is fixed on the upper end face of the annular circular plate 21 and positioned on the inner side of the external thread pipe 23.

A round through hole 221 is formed in the center of the lower end of the hemispherical mesh enclosure 22; the inner bottom of the hemispherical mesh enclosure 22 is supported by four pillars 222 around the circular through hole 221 with a cone 223.

The inner wall of the annular circular plate 21 is uniformly and annularly provided with first spoilers 25; the first spoiler 25 is obliquely arranged, and the upper surface of the first spoiler 25 is a cambered surface and the lower surface thereof is a plane.

A second spoiler 14 which is obliquely upward and directed to the middle is fixed on the inner wall of the cylinder 11 and positioned at the lower side of the bronchus 12.

The clamping plate 13 is an L-shaped arc plate with one end fixed on the surface of the bronchus 12; the contact surface of the clamping plate 13 and the external air inlet pipe of the fresh air machine is provided with anti-skid barbs; the outside of the free end of the clamping plate 13 is provided with a limiting bulge, and after the bronchus 12 of the connecting pipe 1 is inserted into the external air inlet pipe of the fresh air machine, the clamping plate is wound outside the six clamping plates 13 by a hoop and is matched with the anti-slip barbs to play an anti-slip role.

When the novel air purifier is used, the connecting pipe 1 is installed in an external air inlet pipe of the novel fan, the filter screen grid is spirally installed at the lower end of the connecting pipe 1, when the novel fan runs, air filters large floating impurities in the air through the grid filtering layers of the hemispherical screen 22, the first spoiler 25, the arched screen 24 and the second spoiler 14, the air filters the entering sand through the hemispherical screen 22, the first spoiler 25 plays a role in rebounding and removing the entering sand, the arched screen 24 uniformly separates sand again through air flow, and the second spoiler 14 separates sand through separating air flow again through separating air flow in the whole rising pipeline, so that the quantity of entering particles is greatly reduced; the round through hole 221 and the fixed cone 223 formed at the lower end of the hemispherical mesh enclosure 22 facilitate the discharge of the blocked sand.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a new trend is filter screen bars for equipment which characterized in that:

comprises a connecting pipe (1) connected with an external air inlet pipe of a fresh air machine; the lower end of the connecting pipe (1) is rotatably provided with a filter screen grid (2) for filtering sand and stone impurities;

the connecting pipe (1) comprises a cylinder (11) with an opening at the lower end; a branch air pipe (12) which is in inserted connection and matching with an external air inlet pipe of the fresh air machine is fixedly penetrated through the peripheral side surface of the upper end part of the cylinder (11);

a plurality of clamping plates (13) matched with the outer wall of the air inlet pipe are uniformly distributed and fixed on the surface of the bronchus (12) in an annular manner;

the filter screen grid (2) comprises an annular circular plate (21); a hemispherical mesh enclosure (22) coaxially arranged is fixed on the lower surface of the annular circular plate (21); an external thread pipe (23) which is in threaded connection with the lower end of the cylinder (11) is fixed on the upper end surface of the annular circular plate (21); and an arched mesh enclosure (24) which is arched upwards is fixed on the upper end surface of the annular circular plate (21) and is positioned on the inner side of the external threaded pipe (23).

2. The filter screen grid for the fresh air equipment as claimed in claim 1, wherein a circular through hole (221) is formed in the center of the lower end of the hemispherical screen (22); the inner bottom of the hemispherical mesh enclosure (22) is located on the peripheral side of the round through hole (221) and is supported with a cone (223) through four upright posts (222).

3. The filter screen grid for fresh air equipment according to claim 1, wherein the inner wall of the annular circular plate (21) is uniformly distributed with a first spoiler (25) in a ring shape; the first spoiler (25) is obliquely arranged, and the upper surface of the first spoiler (25) is a cambered surface and the lower surface is a plane.

4. A fresh air device grid according to claim 1, wherein a second spoiler (14) is fixed on the inner wall of the cylinder (11) and is positioned at the lower side of the branch air pipe (12) and points obliquely upwards to the middle.

5. The filter screen grid for the fresh air equipment as claimed in claim 1, wherein the clamping plate (13) is an L-shaped circular arc plate with one end fixed on the surface of the bronchus (12); the contact surface of the clamping plate (13) and the external air inlet pipe of the fresh air machine is provided with anti-skid barbs; and a limiting bulge is arranged on the outer side of the free end of the clamping plate (13).